A beam irradiation test system

Abstract

The invention discloses a beam irradiation test system, including a support platform, a passing radiation detector, a silicon charge detector, a plastic flash detector, an optical fiber tracker and a three-dimensional imaging calorimeter; the passing radiation detector is slidably mounted on the support platform through a TRD posture adjustment platform; the silicon charge detector is slidably mounted on the support platform through an SCD posture adjustment platform; the plastic flash detector is slidably mounted on the support platform through a PSD posture adjustment platform; the optical fiber tracker is slidably mounted on the support platform through a FIT posture adjustment platform; the three-dimensional imaging calorimeter is slidably mounted on the support platform through a CALO posture adjustment platform; the passing radiation detector, the silicon charge detector, the plastic flash detector, the optical fiber tracker and the three-dimensional imaging calorimeter are sequentially arranged in series. The system can perform multiple combined tests on the same beam of particle flow, and each test equipment can perform independent posture adjustment, with manual and electric adjustment methods, high reliability, compact overall structure, good bearing capacity and strong stability.

Description

Technical Field

[0001] The invention relates to the technical field of cosmic ray electron spectrum measurement and dark matter detection test equipment, and in particular to a beam irradiation test system. Background Art

[0002] With the advancement of science and technology, people's exploration of the universe is becoming more and more in-depth, and the measurement of cosmic ray electron energy spectrum and the detection research of dark matter are becoming more and more extensive. The traditional calorimeter-type space high-energy particle experiment is a telescope in the form of lens-tube-film. The order of detectors from the outside to the inside is plastic flash anti-coincidence detector, charge measurement and track measurement detector, and two-dimensional calorimeter. This configuration scheme has poor measurement accuracy for high-energy heavy nuclei, lacks energy calibration means in the high-energy zone, has low particle identification ability, and has low resource utilization. Summary of the invention

[0003] The purpose of the present invention is to provide a beam irradiation test system, which can carry out multiple combination tests on the same beam of particle flow, each test equipment can be independently adjusted in position and posture, has manual and electric adjustment modes, high reliability, compact overall structure, good load-bearing capacity and strong stability.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A beam irradiation test system comprises a supporting platform, a passing radiation detector, a silicon charge detector, a plastic flash detector, a fiber tracker and a three-dimensional imaging calorimeter; the passing radiation detector is used for absolute energy calibration of TeV high-energy cosmic rays, the passing radiation detector is slidably mounted on the supporting platform through a TRD attitude adjustment platform, the TRD attitude adjustment platform is used for adjusting the position and attitude of the passing radiation detector moving in three directions and rotating in one direction; the silicon charge detector is used for accurate charge measurement of incident particles, the silicon charge detector is slidably mounted on the supporting platform through an SCD attitude adjustment platform, the SCD attitude adjustment platform is used for adjusting the position and attitude of the silicon charge detector moving in two directions and rotating in one direction; the plastic flash detector is used for real-time trigger identification and / or charge measurement of gamma photons, the plastic flash detector is slidably mounted on the supporting platform through a PSD attitude adjustment platform, the PSD attitude adjustment platform is used for adjusting the movement of the plastic flash detector in two directions; the fiber tracker is used for track measurement of incident gamma photons, the fiber tracker is slidably mounted on the supporting platform through a FIT attitude adjustment platform, the FIT attitude adjustment platform is used for adjusting the position and attitude of the fiber tracker The three-dimensional imaging calorimeter is used to measure the type and energy information of the incident particles. The three-dimensional imaging calorimeter is slidably mounted on the support platform through the CALO attitude adjustment platform. The CALO attitude adjustment platform is used to adjust the position and attitude of the three-dimensional imaging calorimeter in three directions of movement and one direction of rotation. The support platform includes a bracket and a transverse slide rail and a transverse rack mounted on the bracket, and a plurality of adjustable feet and walking wheels are also mounted on the bracket. The PSD attitude adjustment platform includes a second support plate, a second transverse driving mechanism, a second vertical lifting assembly and a second bearing plate. The second support plate is provided with a transverse slider, and the transverse slider is slidably mounted on the transverse slide rail. The second transverse driving mechanism is mounted on the second support plate and is connected to the transverse rack power. One end of the second vertical lifting assembly is mounted on the second support plate, and the second bearing plate is mounted on the other end of the second vertical lifting assembly. The second vertical lifting assembly is used to drive the second bearing plate to move vertically. The plastic flash detector is fixedly mounted on the second bearing plate. The particle beam line passes through the radiation detector, the silicon charge detector, the plastic flash detector, the optical fiber tracker and the three-dimensional imaging calorimeter in sequence.

[0006] Preferably, the CALO posture adjustment platform includes a first support plate, a first transverse driving mechanism, a longitudinal moving component, a first vertical lifting component, a rotating component and a first bearing plate, wherein a transverse slider is provided on the first support plate, and the transverse slider is slidably mounted on a transverse slide rail; the first transverse driving mechanism is mounted on the first support plate and is dynamically connected to the transverse rack; the longitudinal moving component is mounted on the first support plate, and is used to drive the first vertical lifting component, the rotating component and the first bearing plate to translate longitudinally; one end of the rotating component is mounted on the first vertical lifting component, and the first bearing plate is mounted on the other end of the rotating component, and the rotating component is used to drive the first bearing plate to rotate; the three-dimensional imaging calorimeter is fixedly mounted on the first bearing plate.

[0007] Preferably, the longitudinal moving assembly includes a longitudinal driving mechanism, a longitudinal rack, a longitudinal slide rail, a longitudinal slider and a mounting frame, the longitudinal rack and the longitudinal slide rail are fixed in parallel and spaced apart on the first support plate, one end of the longitudinal slider is fixed on the mounting frame, and the other end of the longitudinal slider is slidably mounted on the longitudinal slide rail, the longitudinal driving mechanism is mounted on the mounting frame, and one end of the longitudinal driving mechanism is dynamically connected to the longitudinal rack.

[0008] Preferably, the mounting frame comprises an upper support plate, a lower support plate and support columns, and four support columns are provided and fixedly installed between the upper support plate and the lower support plate.

[0009] Preferably, the first vertical lifting assembly includes a vertical slide rail, a vertical slider, a first vertical drive motor, a first reduction gear and a screw-nut mechanism; the vertical slider is fixedly mounted on the support column, one end of the vertical slide rail is fixedly mounted on the mounting plate, and the vertical slide rail can slide on the vertical slider; the first vertical drive motor and the first reduction gear are fixedly mounted on the upper support plate, the first vertical drive motor and the first reduction gear are power-connected, the screw-nut mechanism is mounted on the first reduction gear, and one end of the screw-nut mechanism is against the rotating assembly; vertical slide rails are mounted on the four support columns.

[0010] Preferably, the rotating assembly includes a rotating drive motor, a first gear, a second gear and a mounting plate, the rotating drive motor is mounted on the mounting plate, the mounting plate is mounted on the first vertical lifting assembly, the first gear is mounted on the output shaft of the rotating drive motor, the second gear is rotatably mounted on the mounting plate, the first gear is meshed with the second gear, and the first supporting plate is fixedly mounted on the second gear.

[0011] Preferably, the first transverse drive mechanism and the longitudinal drive mechanism are both composed of dual drive motors, a reducer and a drive gear, the reducer is connected to the output shaft of the dual drive motor, the drive gear is installed on the output end of the reducer, and the drive gear is meshed with the transverse rack for transmission.

[0012] Preferably, the FIT posture adjustment platform includes a single-degree-of-freedom lifting unit, which includes a third support plate, a third transverse driving mechanism, a third vertical lifting assembly and a third bearing plate. A transverse slider is installed on the third support plate, and the transverse slider is slidably installed on a transverse slide rail; the third transverse driving mechanism is installed on the third support plate and is dynamically connected to the transverse rack; one end of the third vertical lifting assembly is installed on the third support plate, and the third bearing plate is installed on the other end of the third vertical lifting assembly, and the third vertical lifting assembly is used to drive the third bearing plate to move vertically; the fiber optic tracker is fixedly installed on the third bearing plate.

[0013] Preferably, the third vertical lifting assembly includes a mounting bracket, a third vertical driving motor, a third connecting shaft, a third handwheel, a third reduction gear, a third screw rod, a third nut, a third slider and a third slide rail, the mounting bracket is fixedly mounted on the third support plate, the third vertical driving motor is fixedly mounted on the mounting bracket, the third vertical driving motor has two output shafts, one of which is equipped with the third reduction gear, and the other output shaft is also equipped with the third reduction gear through the third connecting shaft, the third handwheel is connected to the output shaft of the third vertical driving motor, the output end of the second reduction gear is dynamically connected to the third screw rod, the third nut is mounted on the output end of the third reduction gear, and the third screw rod is mounted on the third nut through a thread; the third slider is fixedly mounted on the mounting bracket, one end of the third slide rail is fixedly mounted on the third bearing plate, and the other end of the third slide rail is slidably connected to the third slider.

[0014] Preferably, the third transverse drive mechanism is composed of a dual drive motor, a reducer and a drive gear, the reducer is connected to the output shaft of the dual drive motor, the drive gear is installed on the output end of the reducer, and the drive gear is meshed with the transverse rack for transmission.

[0015] Preferably, the second vertical lifting assembly includes a stacking lifting mechanism and a second vertical driving mechanism, the stacking lifting mechanism is installed at both ends of the second bearing plate, and the second vertical driving mechanism is dynamically connected to the stacking lifting mechanism.

[0016] The cam is connected with the second sliding member by the second cam, and the second sliding member is connected with the second sliding member by the second cam.

[0017] Preferably, the second vertical drive mechanism includes a second vertical drive motor, a second connecting shaft, a second hand wheel and a second reduction device, the second vertical drive motor has two output shafts, one of the output shafts is equipped with the second reduction device, and the other output shaft is also equipped with the second reduction device through the second connecting shaft, the second hand wheel is connected to the output shaft of the second vertical drive motor, and the output end of the second reduction device is dynamically connected to the first screw rod.

[0018] Preferably, the second transverse drive mechanism is composed of a dual drive motor, a reducer and a drive gear, the reducer is connected to the output shaft of the dual drive motor, the drive gear is installed on the output end of the reducer, and the drive gear is meshed with the transverse rack for transmission.

[0019] Preferably, the SCD attitude adjustment platform includes the single-degree-of-freedom lifting unit and a first turntable, one end of the first turntable is fixedly mounted on the single-degree-of-freedom lifting unit, the silicon charge detector is fixedly mounted on the other end of the first turntable, and the first turntable is used to adjust the rotation of the silicon charge detector.

[0020] Preferably, the TRD attitude adjustment platform includes the single-degree-of-freedom lifting unit, a horizontal slide and a second turntable, one end of the horizontal slide is installed on the single-degree-of-freedom lifting unit, one end of the second turntable is installed on the other end of the horizontal slide, and the through-radiation detector is fixedly installed on the other end of the second turntable. The horizontal slide is used to drive the second turntable and the through-radiation detector to slide horizontally, and the second turntable is used to drive the through-radiation detector to rotate.

[0021] Preferably, two PSD attitude adjustment platforms are provided, and a plastic flash detector is installed on each of the two PSD attitude adjustment platforms; and two SCD attitude adjustment platforms are provided, and a silicon charge detector is installed on each of the two SCD attitude adjustment platforms.

[0022] Preferably, positioning holes are provided on the passing radiation detector, the silicon charge detector, the plastic scintillation detector, the fiber tracker and the three-dimensional imaging calorimeter.

[0023] In the present invention, the transverse slide rails are provided to provide a common horizontal transverse moving platform for the CALO attitude adjustment platform, the PSD attitude adjustment platform, the RTD attitude adjustment platform, the SCD attitude adjustment platform and the FIT attitude adjustment platform, so as to facilitate the relative position control between the several attitude adjustment platforms. The CALO attitude adjustment platform, the PSD attitude adjustment platform, the RTD attitude adjustment platform, the SCD attitude adjustment platform and the FIT attitude adjustment platform can also control their attitude adjustment separately, so as to realize the adjustment of different positions and attitudes between different test equipments carried, and then can quickly realize the combination test of different test conditions, so as to improve the test efficiency. The driving mechanisms are provided to adopt dual driving motors, which can be controlled electrically or manually, that is, the attitude of the mounting plate can be adjusted in the case of power failure, and the redundancy is high, so as to improve the reliability of the attitude control of the platform. In the CALO attitude adjustment platform, four sets of slide rails are used to connect with the slider structure in parallel, so as to improve the bearing capacity of the first vertical lifting component, and can provide a stable lifting platform for the heavy-weight radiation detector. The PSD posture adjustment platform uses two screw drives to achieve double-stroke lifting and lowering adjustment, reducing the height of the second vertical lifting component, thereby compressing the overall height of the platform, which is convenient for the overall scanning of the plastic flash detector. The set walking wheels facilitate the overall movement and repositioning of the platform, and the set adjustable feet can adjust the overall levelness of the platform to adapt to uneven installation surfaces. The set positioning holes can quickly determine the initial position of the through radiation detector, silicon charge detector, plastic flash detector, fiber tracker and three-dimensional imaging calorimeter through laser. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0026] Figure 3 It is a cross-sectional schematic diagram of the CALO posture adjustment platform of the present invention;

[0027] Figure 4 It is a partial cross-sectional schematic diagram of the PSD posture adjustment platform of the present invention;

[0028] Figure 5 It is a cross-sectional schematic diagram of a single-degree-of-freedom lifting unit of the present invention;

[0029] In the figure: 1. Support platform; 2. Transverse radiation detector; 3. Silicon charge detector; 4. CALO attitude adjustment platform; 5. PSD attitude adjustment platform; 6. Single degree of freedom lifting unit; 7. Plastic flash detector; 8. Fiber tracker; 9. Three-dimensional imaging calorimeter; 10. Bracket; 11. Horizontal slide rail; 12. Horizontal rack; 13. Horizontal slider; 14. Adjustable support foot; 15. Travel wheel; 16. Positioning hole; 17. Horizontal slide; 18. Second turntable; 19. First turntable; 40. First support plate; 41. First lateral Drive mechanism; 42, longitudinal moving assembly; 43, first vertical lifting assembly; 44, rotating assembly; 45, first bearing plate; 50, second supporting plate; 51, second transverse drive mechanism; 52, second vertical lifting assembly; 53, second bearing plate; 54, second vertical drive mechanism; 55, support frame; 56, first slide rail; 57, second slide rail; 60, third supporting plate; 61, third transverse drive mechanism; 62, third vertical lifting assembly; 63, third bearing plate; 420, longitudinal drive mechanism; 421, longitudinal 422, longitudinal rail; 423, longitudinal slider; 424, upper support plate; 425, lower support plate; 426, support column; 430, vertical rail; 431, vertical slider; 432, first vertical drive motor; 433, first reduction gear; 434, lead screw nut mechanism; 440, rotation drive motor; 441, first gear; 442, second gear; 443, mounting plate; 520, vertical support plate; 521, first slider; 522, first screw rod; 523, first nut; 524, first A pulley; 525, a second pulley; 526, a transmission belt; 527, a second screw rod; 528, a second nut; 529, a second slider; 541, a second vertical drive motor; 542, a second connecting shaft; 543, a second hand wheel; 544, a second reduction gear; 620, a mounting bracket; 621, a third vertical drive motor; 622, a third connecting shaft; 623, a third hand wheel; 624, a third reduction gear; 625, a third screw rod; 626, a third nut; 627, a third slider; 628, a third slide rail. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings:

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A beam irradiation test system shown includes a support platform 1, a through radiation detector 2, a silicon charge detector 3, a plastic flash detector 7, a fiber tracker 8 and a three-dimensional imaging calorimeter 9. In one embodiment, the support platform 1 includes a bracket 10 and a transverse slide rail 11 and a transverse rack 12 fixedly mounted on the bracket 10 by fasteners. The bracket 10 is a rectangular frame structure spliced ​​by multiple steel pipes. A plurality of support beams are arranged on the bracket 10. Four transverse slide rails 11 are arranged. Of course, two, three or five transverse slide rails 11 can also be arranged. A plurality of adjustable feet 14 and running wheels 15 are fixedly mounted on the bottom of the bracket 10. The plurality of adjustable feet 14 are arranged in two rows along the width direction of the bracket 10. A running wheel 15 is arranged between the front and rear adjustable feet 14 in each row of adjustable feet 14.

[0032] The through radiation detector 2 is used to calibrate the absolute energy of TeV high-energy cosmic rays. The through radiation detector 2 is slidably mounted on the support platform 1 through the TRD attitude adjustment platform. The TRD attitude adjustment platform is used to adjust the position and attitude of the through radiation detector 2 in three directions of movement and one direction of rotation. In this embodiment, the through radiation detector 2 is a purchased part.

[0033] The TRD posture adjustment platform includes a single-degree-of-freedom lifting unit 6, a horizontal slide 17, and a second turntable 18. The bottom end of the horizontal slide 17 is fixedly mounted on the top surface of the third bearing plate 63 by bolts, the bottom end of the second turntable 18 is fixedly mounted on the slidable end of the horizontal slide 17 by bolts, and the through-radiation detector 2 is fixedly mounted on the rotatable end of the second turntable 18 by bolts. In this embodiment, the horizontal slide 17 is used to drive the second turntable 18 and the through-radiation detector 2 to slide horizontally and longitudinally, and the horizontal slide 17 adopts a manually adjustable lead screw slide that can be purchased on the market. The second turntable 18 is used to drive the rotation of the through-radiation detector 2, and the second turntable 18 adopts a manually adjustable turntable that can be purchased on the market. In this embodiment, the structures of the horizontal slide 17 and the second turntable 18 are no longer described in detail.

[0034] The single-degree-of-freedom lifting unit 6 comprises a third support plate 60, a third transverse driving mechanism 61, a third vertical lifting assembly 62 and a third bearing plate 63. A plurality of transverse sliders 13 are fixedly mounted on the bottom surface of the third support plate 60 by fasteners. The number of transverse sliders 13 in the single-degree-of-freedom lifting unit 6 is the same as the number of transverse slide rails 11, and the transverse sliders 13 are slidably mounted on the transverse slide rails 11. The third transverse driving mechanism 61 is mounted on the third support plate 60, and one end of the third transverse driving mechanism 61 is connected to the transverse rack 12 by power. In a specific embodiment, the third transverse driving mechanism 61 is composed of a dual-drive motor, a reducer and a driving gear. The reducer is fixedly connected to the output shaft of the dual-drive motor, and the driving gear is fixedly mounted on the output end of the reducer. The driving gear is meshed with the transverse rack 12 for transmission. When the dual-drive motor rotates, the single-degree-of-freedom lifting unit 6 can slide on the bracket 10. The dual-drive motor can rotate forward or reverse when powered. In the case of power failure, the turntable connected to the rotor of the dual-drive motor can be manually shaken to make the motor rotate forward or reverse.

[0035] The bottom end of the third vertical lifting assembly 62 is mounted on the third support plate 60 , and the third bearing plate 63 is fixedly mounted on the top end of the third vertical lifting assembly 62 by fasteners. The third vertical lifting assembly 62 is used to drive the third bearing plate 63 to move vertically.

[0036] The third vertical lifting assembly 62 includes a mounting bracket 620, a third vertical drive motor 621, a third connecting shaft 622, a third hand wheel 623, a third reduction gear 624, a third screw rod 625, a third nut 626, a third slider 627 and a third slide rail 628. The mounting bracket 620 is fixedly mounted on the third support plate 60 by fasteners. In one embodiment, the mounting bracket 620 is an inverted U shape. The third vertical drive motor 621 is fixedly mounted on the mounting bracket 620 by fasteners. The third vertical drive motor 621 has two output shafts, one of which is fixedly mounted on the input end of the third reduction gear 624, and the other output shaft is fixedly connected to one end of the third connecting shaft 622 by a coupling. The other end of the third connecting shaft 622 is fixedly mounted on the input end of another third reduction gear 624. The third hand wheel 623 is fixedly connected to the output shaft of the third vertical drive motor 621, and the output end of the third reduction gear 624 is fixedly connected to the third screw rod 625 by a coupling. The third screw nut 626 is fixedly mounted on the output end of the third reduction device 624, the third screw rod 625 is threadedly mounted on the third screw nut 626, and one end of the third screw rod 625 is against the bottom of the third bearing plate 63. The third slide rails 628 are fixedly mounted on both ends of the third bearing plate 63 by fasteners, the third slider 627 is fixedly mounted on the mounting bracket 620 by bolts, and the third slide rails 628 are slidably connected to the third slider 627. When the third vertical driving motor 621 drives the third connecting shaft 622 to rotate, the third bearing plate 63 is vertically lifted and lowered through the transmission of the third screw rod 625 and the third screw nut 626.

[0037] The silicon charge detector 3 is used for accurate charge measurement of incident particles. The silicon charge detector is slidably mounted on the support platform 1 through the SCD attitude adjustment platform. The SCD attitude adjustment platform is used to adjust the position and attitude of the silicon charge detector 3 in two directions of movement and one direction of rotation. In this embodiment, the silicon charge detector 3 is a purchased part, and the silicon charge detector 3 is a multi-layer horizontal orthogonal and closely arranged silicon micro-strip.

[0038] The SCD posture adjustment platform includes a single-degree-of-freedom lifting unit 6 and a first turntable 19. The bottom end of the first turntable 19 is fixedly mounted on the third bearing plate 63 by bolts, and the silicon charge detector 3 is fixedly mounted on the other end of the first turntable 19 by bolts. The first turntable 19 is used to adjust the rotation of the silicon charge detector 3. In this embodiment, the first turntable 19 adopts a manually adjustable turntable available on the market, and the structure of the first turntable 19 is not described in detail. The single-degree-of-freedom lifting units 6 in the SCD posture adjustment platform, the FIT posture adjustment platform, and the TRD posture adjustment platform are independent of each other.

[0039] The plastic flash detector 7 is used for real-time trigger identification and / or charge measurement of gamma photons. The plastic flash detector 7 is slidably mounted on the support platform 1 through the PSD posture adjustment platform 5. The PSD posture adjustment platform 5 is used to adjust the two-directional movement of the plastic flash detector 7. The plastic flash detector 7 is composed of a plurality of plastic flash units. The plastic flash units are cross-arranged in horizontal orthogonal directions and are stacked in each direction. The plastic flash detector 7 is a purchased part.

[0040] The PSD posture adjustment platform 5 includes a second support plate 50, a second transverse driving mechanism 51, a second vertical lifting assembly 52 and a second bearing plate 53. A plurality of transverse sliders 13 are fixedly installed on the bottom surface of the second support plate 50 by fasteners. The number of transverse sliders 13 in the PSD posture adjustment platform 5 is the same as the number of transverse slide rails 11, and the transverse sliders 13 are slidably installed on the transverse slide rails 11. The second transverse driving mechanism 51 is installed on the second support plate 50, and one end of the second transverse driving mechanism 51 is connected to the transverse rack 12 by power. In a specific embodiment, the second transverse driving mechanism 51 is composed of a dual drive motor, a reducer and a driving gear. The reducer is fixedly connected to the output shaft of the dual drive motor, and the driving gear is fixedly installed on the output end of the reducer. The driving gear is meshed with the transverse rack 12 for transmission. When the dual drive motor rotates, the PSD posture adjustment platform 5 can slide on the bracket 10. The dual drive motor can rotate forward or reverse when powered. In the case of power failure, the turntable connected to the rotor of the dual drive motor can be manually shaken to make the motor rotate forward or reverse. The overall height of the PSD posture adjustment platform 5 is not higher than two-thirds of the height of the single-degree-of-freedom lifting unit 6 .

[0041] The bottom end of the second vertical lifting assembly 52 is fixedly mounted on the top surface of the second support plate 50 by bolts, and the second bearing plate 53 is fixedly mounted on the top of the second vertical lifting assembly 52 by bolts. The second vertical lifting assembly 52 is used to drive the second bearing plate 53 to move vertically. In one embodiment, the second vertical lifting assembly 52 includes a stacking lifting mechanism and a second vertical driving mechanism 54. The stacking lifting mechanism is fixedly mounted on both ends of the second bearing plate 53, and the second vertical driving mechanism 54 is connected to the stacking lifting mechanism by power. The plastic flash detector 7 is fixedly mounted on the top of the second bearing plate 53 by bolts.

[0042] The stacking lifting mechanism includes a vertical support plate 520, a first slider 521, a first screw rod 522, a first nut 523, a first pulley 524, a second pulley 525, a transmission belt 526, a second screw rod 527, a second nut 528 and a second slider 529. The top of the vertical support plate 520 is fixedly mounted on the bottom of the second bearing plate 53 by fasteners or welding. The first pulley 524 and the second pulley 525 are rotatably mounted on the bottom of the second bearing plate 53 through a pin. The first pulley 524 and the second pulley 525 are connected through a transmission belt 526. One end of the first screw rod 522 is rotatably mounted on the left side of the vertical support plate 520 through a bearing. The other end of the first screw rod 522 is fixedly mounted on the first pulley 524. When the first screw rod 522 rotates, the first pulley 524 is driven to rotate. One end of the second screw rod 527 is rotatably mounted on the right side of the vertical support plate 520 through a bearing. The other end of the second screw rod 527 is fixedly mounted on the second pulley 525. The first nut 523 is installed on the first screw rod 522 by threading, and the first nut 523 is fixedly installed on the first slider 521 by fasteners. The support frame 55 is fixedly installed on both the left and right sides of the second bearing plate 53, and the first slider 521 is fixedly installed on the support frame 55 by fasteners. The second nut 528 is installed on the second screw rod 527 by threading, and the second nut 528 is fixedly installed on the second slider 529 by fasteners, and the second slider 529 is fixedly installed on the second support plate 50 by bolts. The first slide rail 56 and the second slide rail 57 are fixedly installed on the left and right sides of the vertical support plate 520 by bolts, respectively. The first slider 521 can slide on the first slide rail 56, and the second slider 529 can slide on the second slide rail 57. The first screw rod 522 is connected to the second vertical drive mechanism 54 in power.

[0043] The second vertical drive mechanism 54 includes a second vertical drive motor 541, a second connecting shaft 542, a second hand wheel 543 and a second reduction gear 544. The second vertical drive motor 541 has two output shafts, one of which is fixedly mounted on the input end of the second reduction gear 544, the other output shaft is fixedly connected to one end of the second connecting shaft 542 through a coupling, the other end of the second connecting shaft 542 is fixedly mounted on the input end of another second reduction gear 544, the second hand wheel 543 is fixedly connected to the output shaft of the second vertical drive motor 541, and the output end of the second reduction gear 544 is fixedly connected to the first screw rod 522 through a coupling. In a specific embodiment, a slide groove is provided on the support frame 55, one end of the second hand wheel 543 passes through the slide groove and is located outside the support frame 55, and the second hand wheel 543 can slide vertically in the slide groove.

[0044] The fiber tracker 8 is used to measure the track of incident gamma photons. The fiber tracker 8 is slidably mounted on the support platform 1 through the FIT posture adjustment platform. The FIT posture adjustment platform is used to adjust the movement of the fiber tracker 8 in two directions. In this embodiment, the fiber tracker 8 is a multi-layer scintillating optical fiber tightly arranged in horizontal orthogonal directions, and the fiber tracker 8 is a purchased part. The FIT posture adjustment platform includes a single-degree-of-freedom lifting unit 6, and the fiber tracker 8 is fixedly mounted on the top surface of the third bearing plate 63 by bolts.

[0045] The three-dimensional imaging calorimeter 9 is used to measure the type and energy information of the incident particles. The three-dimensional imaging calorimeter 9 is slidably mounted on the support platform 1 through the CALO attitude adjustment platform 4. The CALO attitude adjustment platform 4 is used to adjust the position and attitude of the three-dimensional imaging calorimeter 9 in three directions of movement and one direction of rotation. In this embodiment, the three-dimensional imaging calorimeter 9 is composed of cubic crystal blocks of lutetium yttrium silicate. The type and energy information of the incident particles can be reconstructed by collecting the signals of each crystal. The three-dimensional imaging calorimeter 9 is a purchased part.

[0046] The CALO posture adjustment platform 4 includes a first support plate 40, a first transverse driving mechanism 41, a longitudinal moving assembly 42, a first vertical lifting assembly 43, a rotating assembly 44 and a first bearing plate 45. A plurality of transverse sliders 13 are fixedly installed on the bottom of the first support plate 40 by fasteners. The transverse sliders 13 are slidably installed on the transverse slide rails 11. In one embodiment, two transverse sliders 13 are installed on the same transverse slide rail 11. The first transverse driving mechanism 41 is fixedly installed on the first support plate 40 by bolts, and the first transverse driving mechanism 41 is connected to the transverse rack 12 by power. In a specific embodiment, the first transverse driving mechanism 41 is composed of a dual drive motor, a reducer and a driving gear. The reducer is fixedly connected to the output shaft of the dual drive motor, and the driving gear is fixedly installed on the output end of the reducer. The driving gear is meshed with the transverse rack 12 for transmission. When the dual drive motor rotates, the CALO posture adjustment platform 4 can slide on the bracket 10. The dual drive motor can rotate forward or reverse when powered. In the case of power failure, the turntable connected to the rotor of the dual drive motor can be manually shaken to make the motor rotate forward or reverse. The three-dimensional imaging calorimeter 9 is fixedly mounted on the first supporting plate 45 by means of bolts.

[0047] The longitudinal moving assembly 42 is mounted on the first support plate 40, and is used to drive the first vertical lifting assembly 43, the rotating assembly 44 and the first bearing plate 45 to move longitudinally. The longitudinal moving assembly 42 includes a longitudinal driving mechanism 420, a longitudinal rack 421, a longitudinal slide rail 422, a longitudinal slider 423 and a mounting frame. The longitudinal rack 421 and the longitudinal slide rail 422 are fixedly mounted on the first support plate 40 in parallel and spaced apart by fasteners. One end of the longitudinal slider 423 is fixedly mounted on the mounting frame by bolts, and the other end of the longitudinal slider 423 is slidably mounted on the longitudinal slide rail 422. The longitudinal driving mechanism 420 is fixedly mounted on the mounting frame by bolts, and one end of the longitudinal driving mechanism 420 is connected to the longitudinal rack 421 by power. In one embodiment, the longitudinal driving mechanism 420 is composed of a dual driving motor, a reducer and a driving gear. The reducer is fixedly connected to the output shaft of the dual driving motor, and the driving gear is fixedly mounted on the output end of the reducer. The driving gear is meshed with the longitudinal rack 421 for transmission. When the dual driving motor rotates, the first vertical lifting assembly 43 can slide on the first support plate 40. The dual-drive motor can rotate forward or reverse when powered on. In a power-off state, a rotating disk connected to the rotor of the dual-drive motor can be manually shaken to make the motor rotate forward or reverse.

[0048] In one embodiment, the mounting frame includes an upper support plate 424, a lower support plate 425 and support columns 426. Four support columns 426 are provided. The four support columns 426 are fixedly installed between the upper support plate 424 and the lower support plate 425 by bolts and are located at the corners of the upper support plate 424 and the lower support plate 425. The first vertical lifting assembly 43 includes a vertical slide rail 430, a vertical slider 431, a first vertical drive motor 432, a first reduction device 433 and a screw nut mechanism 434. The vertical slider 431 is fixedly installed on the support column 426 by bolts. The top end of the vertical slide rail 430 is fixedly installed on the mounting plate 443 by bolts. The vertical slider 431 is slidably installed on the vertical slide rail 430. The first vertical drive motor 432 and the first reduction gear 433 are fixedly mounted on the bottom of the upper support plate 424 through fasteners. The first reduction gear 433 is connected to the output shaft of the first vertical drive motor 432. The lead screw nut mechanism 434 is mounted on the output end of the first reduction gear 433. The top end of the lead screw of the lead screw nut mechanism 434 is against the bottom of the mounting plate 443. A vertical slider 431 is fixedly mounted on each of the four support columns 426. When the first vertical drive motor 432 is powered on and rotated, the lead screw of the lead screw nut mechanism 434 is controlled to extend or retract through the first reduction gear 433, so that the rotating assembly 44 moves vertically up and down.

[0049] The rotating assembly 44 includes a rotating drive motor 440, a first gear 441, a second gear 442 and a mounting plate 443. The rotating drive motor 440 is fixedly mounted on the mounting plate 443 by fasteners, the first gear 441 is fixedly mounted on the output shaft of the rotating drive motor 440 by a key, the second gear 442 is rotatably mounted on the top surface of the mounting plate 443 by a pin shaft, the first gear 441 is meshed with the second gear 442 for transmission, and the first bearing plate 45 is fixedly mounted on the second gear 442 by bolts.

[0050] The passing radiation detector 2, silicon charge detector 3, plastic flash detector 7, fiber tracker 8 and three-dimensional imaging calorimeter 9 are arranged in series at intervals. During the test, one or more particle beams are emitted by the particle emitter to pass through the passing radiation detector 2, silicon charge detector 3, plastic flash detector 7, fiber tracker 8 and three-dimensional imaging calorimeter 9 in sequence for testing. The TRD attitude adjustment platform, SCD attitude adjustment platform, PSD attitude adjustment platform, FIT attitude adjustment platform and CALO attitude adjustment platform are adjusted to carry out combination tests of different conditions on the particle beam.

[0051] There are two PSD attitude adjustment platforms 5, and a plastic flash detector 7 is fixedly installed on each of the two PSD attitude adjustment platforms 5. Each plastic flash detector 7 can independently perform beam tests, and of course, one or more plastic flash detectors can also be set. There are two SCD attitude adjustment platforms, and a silicon charge detector 3 is fixedly installed on each of the two SCD attitude adjustment platforms. Each silicon charge detector 3 can independently perform beam tests, and of course, one or more silicon charge detectors can also be set. Positioning holes 16 are set on the radiation detector 2, silicon charge detector 3, plastic flash detector 7, fiber tracker 8 and three-dimensional imaging calorimeter 9. When in use, a laser is emitted by a laser transmitter. The laser simultaneously passes through the positioning holes 16 on the radiation detector 2, silicon charge detector 3, plastic flash detector 7, fiber tracker 8 and three-dimensional imaging calorimeter 9 to complete the initial position positioning of the above-mentioned measuring equipment. Each attitude adjustment platform can adjust the lateral position individually on the lateral rack 12, or several attitude adjustment platforms can be adjusted in lateral position as a whole.

[0052] In the present application, the emitted particle beam line passes through the radiation detector 2, the silicon charge detector 3 (one, two or more), the plastic scintillation detector 7 (one, two or more), the fiber tracker 8 and the three-dimensional imaging calorimeter 9 in sequence. In this order, the beam particles will be transformed into several secondary particles after being showered in the three-dimensional imaging calorimeter 9, thereby losing their intrinsic charge and direction information, that is, the charge and direction information of the beam particles cannot be measured after the three-dimensional imaging calorimeter 9, so the three-dimensional imaging calorimeter 9 is placed at the end. In addition, because the beam particles will lose energy or the atomic nucleus will be fragmented when passing through the detector mass, making it difficult to measure the Lorentz factor and charge information, considering the importance of the radiation detector 2 as the benchmark for the overall calibration, the radiation detector 2 is arranged at the front end, followed by the silicon charge detector 3. The plastic scintillation detector 7 and the fiber tracker 8 are arranged between the silicon charge detector 3 and the three-dimensional imaging calorimeter 9. Considering the association between the plastic scintillation detector 7 and the fiber tracker 8 and the trigger configuration and timing, it is necessary to let the beam particles pass through the plastic scintillation detector 7 first and give the trigger signal as accurately and early as possible as the input of the global trigger so that the data acquisition link of the whole system can run efficiently.

[0053] The present application adjusts the detector order so that the silicon charge detector 3 is outside, which can effectively avoid the charge fragmentation effect and improve the accuracy of electrical measurements. The plastic flash detector 7 and the fiber tracker 8 are centered, which effectively improves the detection capability of gamma photons. The three-dimensional imaging calorimeter 9 is used to respond to particles in all directions, effectively improving the particle identification capability and greatly improving the load utilization rate. A through radiation detector 2 is added to an outer side surface to increase the absolute energy calibration means of high-energy particles. Because the three-dimensional imaging calorimeter 9 is sensitive on five sides and has a large field of view, each detector needs to be energy calibrated for different incident angles, so several attitude adjustment platforms are set with multiple degrees of freedom adjustment.

[0054] In this application, CALO means three-dimensional imaging calorimeter; FIT means fiber trackmeter; PSD means plastic scintillation detector; SCD means silicon charge detector; TRD means transmission radiation detector; TeV is the unit of energy, where T means "tera", which means 10 to the 12th power; eV means electron volt, that is, 1TeV = 10 to the 12th power (trillion) electron volts.

[0055] The above embodiments are only some illustrations of the concept and implementation of the present invention, and are not intended to limit the same. Under the concept of the present invention, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. A beam irradiation test system, characterized in that: It includes a supporting platform, a passing radiation detector, a silicon charge detector, a plastic flash detector, a fiber tracker and a three-dimensional imaging calorimeter; the passing radiation detector is used to calibrate the absolute energy of TeV high-energy cosmic rays, the passing radiation detector is slidably mounted on the supporting platform through a TRD attitude adjustment platform, and the TRD attitude adjustment platform is used to adjust the position and attitude of the passing radiation detector moving in three directions and rotating in one direction; the silicon charge detector is used to accurately measure the charge of incident particles, the silicon charge detector is slidably mounted on the supporting platform through an SCD attitude adjustment platform, and the SCD attitude adjustment platform is used to adjust the position and attitude of the silicon charge detector moving in two directions and rotating in one direction; the plastic flash detector is used for real-time trigger identification and / or charge measurement of gamma photons, the plastic flash detector is slidably mounted on the supporting platform through a PSD attitude adjustment platform, and the PSD attitude adjustment platform is used to adjust the movement of the plastic flash detector in two directions; the fiber tracker is used to measure the track of incident gamma photons, the fiber tracker is slidably mounted on the supporting platform through a FIT attitude adjustment platform, and the FIT attitude adjustment platform is used to adjust the movement of the fiber tracker in two directions The three-dimensional imaging calorimeter is used to measure the type and energy information of the incident particles. The three-dimensional imaging calorimeter is slidably mounted on the support platform through the CALO attitude adjustment platform. The CALO attitude adjustment platform is used to adjust the position and attitude of the three-dimensional imaging calorimeter in three directions of movement and one direction of rotation. The support platform includes a bracket and a transverse slide rail and a transverse rack mounted on the bracket, and a plurality of adjustable feet and walking wheels are also mounted on the bracket. The PSD attitude adjustment platform includes a second support plate, a second transverse driving mechanism, a second vertical lifting assembly and a second bearing plate. The second support plate is provided with a transverse slider, and the transverse slider is slidably mounted on the transverse slide rail. The second transverse driving mechanism is mounted on the second support plate and is connected to the transverse rack power. One end of the second vertical lifting assembly is mounted on the second support plate, and the second bearing plate is mounted on the other end of the second vertical lifting assembly. The second vertical lifting assembly is used to drive the second bearing plate to move vertically. The plastic flash detector is fixedly mounted on the second bearing plate. The particle beam line passes through the radiation detector, the silicon charge detector, the plastic flash detector, the optical fiber tracker and the three-dimensional imaging calorimeter in sequence.

2. The beam irradiation test system according to claim 1, characterized in that: The CALO posture adjustment platform includes a first support plate, a first transverse driving mechanism, a longitudinal moving component, a first vertical lifting component, a rotating component and a first bearing plate. The first support plate is provided with a transverse slider, and the transverse slider is slidably mounted on a transverse slide rail; the first transverse driving mechanism is mounted on the first support plate and is dynamically connected to the transverse rack; the longitudinal moving component is mounted on the first support plate, and is used to drive the first vertical lifting component, the rotating component and the first bearing plate to translate longitudinally; one end of the rotating component is mounted on the first vertical lifting component, and the first bearing plate is mounted on the other end of the rotating component, and the rotating component is used to drive the first bearing plate to rotate; the three-dimensional imaging calorimeter is fixedly mounted on the first bearing plate.

3. The beam irradiation test system according to claim 2, characterized in that: The longitudinal moving assembly includes a longitudinal driving mechanism, a longitudinal rack, a longitudinal slide rail, a longitudinal slider and a mounting frame. The longitudinal rack and the longitudinal slide rail are fixedly mounted on the first supporting plate in parallel and at intervals. One end of the longitudinal slider is fixedly mounted on the mounting frame, and the other end of the longitudinal slider is slidably mounted on the longitudinal slide rail. The longitudinal driving mechanism is mounted on the mounting frame, and one end of the longitudinal driving mechanism is dynamically connected to the longitudinal rack.

4. The beam irradiation test system according to claim 3, characterized in that: The mounting frame comprises an upper support plate, a lower support plate and support columns. Four support columns are provided and fixed between the upper support plate and the lower support plate.

5. The beam irradiation test system according to claim 4, characterized in that: The rotating assembly includes a rotating drive motor, a first gear, a second gear and a mounting plate, the rotating drive motor is mounted on the mounting plate, the mounting plate is mounted on the first vertical lifting assembly, the first gear is mounted on the output shaft of the rotating drive motor, the second gear is rotatably mounted on the mounting plate, the first gear is meshed with the second gear, and the first bearing plate is fixedly mounted on the second gear.

6. The beam irradiation test system according to claim 5, characterized in that: The first vertical lifting assembly includes a vertical slide rail, a vertical slider, a first vertical drive motor, a first reduction device and a lead screw nut mechanism, the vertical slider is fixed on the support column, one end of the vertical slide rail is fixed on the mounting plate, and the vertical slide rail can slide on the vertical slider; The first vertical drive motor and the first reduction gear are fixedly mounted on the upper support plate, the first vertical drive motor and the first reduction gear are power-connected, the lead screw and nut mechanism is mounted on the first reduction gear, and one end of the lead screw and nut mechanism is against the rotating assembly; vertical sliders are mounted on the four support columns.

7. The beam irradiation test system according to claim 2, characterized in that: The first transverse driving mechanism and the longitudinal driving mechanism are both composed of dual driving motors, a reducer and a driving gear. The reducer is connected to the output shaft of the dual driving motors, and the driving gear is installed on the output end of the reducer. The driving gear is meshed with the transverse rack for transmission.

8. The beam irradiation test system according to claim 1, characterized in that: The FIT posture adjustment platform includes a single-degree-of-freedom lifting unit, which includes a third support plate, a third transverse driving mechanism, a third vertical lifting assembly and a third bearing plate. A transverse slider is installed on the third support plate, and the transverse slider is slidably installed on the transverse slide rail; the third transverse driving mechanism is installed on the third support plate and is dynamically connected to the transverse rack; one end of the third vertical lifting assembly is installed on the third support plate, and the third bearing plate is installed on the other end of the third vertical lifting assembly, and the third vertical lifting assembly is used to drive the third bearing plate to move vertically; the fiber optic tracker is fixedly installed on the third bearing plate.

9. The beam irradiation test system according to claim 8, characterized in that: The third vertical lifting assembly includes a mounting bracket, a third vertical driving motor, a third connecting shaft, a third hand wheel, a third reduction gear, a third screw rod, a third nut, a third slider and a third slide rail. The mounting bracket is fixedly mounted on the third support plate, and the third vertical driving motor is fixedly mounted on the mounting bracket. The third vertical driving motor has two output shafts, one of which is equipped with the third reduction gear, and the other output shaft is also equipped with the third reduction gear through the third connecting shaft. The third hand wheel is connected to the output shaft of the third vertical driving motor, and the output end of the second reduction gear is dynamically connected to the third screw rod. The third nut is mounted on the output end of the third reduction gear, and the third screw rod is mounted on the third nut through a thread; the third slider is fixedly mounted on the mounting bracket, one end of the third slide rail is fixedly mounted on the third bearing plate, and the other end of the third slide rail is slidably connected to the third slider.

10. The beam irradiation test system according to claim 8 or 9, characterized in that: The third transverse drive mechanism is composed of a dual drive motor, a reducer and a drive gear. The reducer is connected to the output shaft of the dual drive motor. The drive gear is installed on the output end of the reducer. The drive gear is meshed with the transverse rack for transmission.

11. The beam irradiation test system according to claim 9, characterized in that: The second vertical lifting assembly includes a stacking lifting mechanism and a second vertical driving mechanism. The stacking lifting mechanisms are installed at both ends of the second bearing plate. The second vertical driving mechanism is dynamically connected to the stacking lifting mechanism.

12. The beam irradiation test system according to claim 11, characterized in that: The folding lifting mechanism comprises a vertical support plate, a first sliding block, a first screw rod, a first nut, a first pulley, a second pulley, a transmission belt, a second screw rod, a second nut and a second sliding block, one end of the vertical support plate is arranged on the second carrying plate, the first pulley and the second pulley are rotatably arranged on the bottom of the vertical support plate through the transmission belt, one end of the first screw rod is rotatably arranged on the vertical support plate, the other end of the first screw rod is rotatably arranged on the vertical support plate; one end of the second screw rod is rotatably arranged on the vertical support plate, and the other end of the second screw rod is rotatably arranged on the vertical support plate; the first nut is arranged on the first screw rod through a thread, the first nut is fixedly arranged on the first sliding block, and support frames are arranged on both sides of the second carrying plate, and the first sliding block is fixedly arranged on the support frame; the second nut is arranged on the second screw rod through a thread, the second nut is fixedly arranged on the second sliding block, and the second sliding block is fixedly arranged on the mounting bracket; a first slide rail and a second slide rail are respectively arranged on both sides of the vertical support plate, the first sliding block slides on the first slide rail, and the second sliding block slides on the second slide rail.

13. The beam irradiation test system according to claim 12, characterized in that: The second vertical drive mechanism includes a second vertical drive motor, a second connecting shaft, a second hand wheel and a second reduction device. The second vertical drive motor has two output shafts, one of which is equipped with the second reduction device, and the other output shaft is also equipped with the second reduction device through the second connecting shaft. The second hand wheel is connected to the output shaft of the second vertical drive motor, and the output end of the second reduction device is dynamically connected to the first screw rod.

14. The beam irradiation test system according to any one of claims 11 to 13, characterized in that: The second transverse drive mechanism is composed of a dual drive motor, a reducer and a drive gear. The reducer is connected to the output shaft of the dual drive motor. The drive gear is installed on the output end of the reducer. The drive gear is meshed with the transverse rack for transmission.

15. The beam irradiation test system according to claim 10, characterized in that: The SCD posture adjustment platform includes the single-degree-of-freedom lifting unit and a first turntable, one end of the first turntable is fixedly mounted on the single-degree-of-freedom lifting unit, the silicon charge detector is fixedly mounted on the other end of the first turntable, and the first turntable is used to adjust the rotation of the silicon charge detector.

16. The beam irradiation test system according to claim 10, characterized in that: The TRD attitude adjustment platform includes the single-degree-of-freedom lifting unit, a horizontal slide and a second turntable. One end of the horizontal slide is installed on the single-degree-of-freedom lifting unit, and one end of the second turntable is installed on the other end of the horizontal slide. The through-radiation detector is fixedly installed on the other end of the second turntable. The horizontal slide is used to drive the second turntable and the through-radiation detector to slide horizontally, and the second turntable is used to drive the through-radiation detector to rotate.

17. The beam irradiation test system according to claim 1, characterized in that: Two PSD attitude adjustment platforms are provided, and a plastic flash detector is installed on each of the two PSD attitude adjustment platforms; two SCD attitude adjustment platforms are provided, and a silicon charge detector is installed on each of the two SCD attitude adjustment platforms.

18. The beam irradiation test system according to claim 1 or 17, characterized in that: Positioning holes are provided on the passing radiation detector, the silicon charge detector, the plastic scintillation detector, the optical fiber tracker and the three-dimensional imaging calorimeter.

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