Portable liquid flash spectrometer radiation monitoring device

Abstract

The embodiment of the utility model provides a portable liquid flash spectrometer radiation monitoring device. The portable liquid flash spectrometer radiation monitoring device comprises a structure main body (1) with a cavity, a flash bottle (28) and a detection light chamber (4), the structure main body (1) comprises an upward upper shell (9); the detection light chamber (4) is provided with a first opening, and the first opening faces the upper shell (9); the detection light chamber (4) is fixedly arranged inside the structure main body (1); the scintillation bottle (28) is arranged outside an upper shell (9) of the structure main body (1); the lower end of the scintillation bottle (28) can be placed in the first opening and is detachably connected with the first opening in a sealed mode. Radiation of radionuclides is detected by means of the characteristic that fluorescent substances are precipitated in liquid, and high-sensitivity and high-precision radionuclide counting can be achieved. The device is simple to operate, can be moved and carried conveniently, can reach any scene for on-site detection, and is high in scanning speed and short in result obtaining time.

Description

Technical Field

[0001] The utility model relates to the field of radiation monitoring, in particular to a portable liquid scintillation spectrometer radiation monitoring device. Background Art

[0002] During the treatment of patients with radioactive nuclides in their bodies, the gamma rays released during the decay of the radionuclides cause external exposure to family members and medical staff. The patient's excrement can also cause radioactive contamination to the surrounding environment. Therefore, the patients undergoing treatment must be hospitalized and isolated in special protection wards and can only be discharged after the residual radioactive activity of the radionuclides in their bodies is less than the required value.

[0003] During the development of this utility model, the applicant discovered that the prior art suffers from at least the following problems: Currently, most methods for measuring radionuclides rely on estimation, which can extend patient hospitalization. This, in turn, exposes staff to unnecessary radiation during the estimation process. Furthermore, ward turnover is slow, and patients spend extended periods waiting for treatment, hindering their recovery. There is no direct radionuclide measurement device available, necessitating a portable, on-the-go device to mitigate these issues. Utility Model Content

[0004] The embodiment of the utility model provides a portable liquid scintillation spectrometer radiation monitoring device, which can solve the technical problems existing in the prior art.

[0005] To achieve the above-mentioned objectives, the present invention provides a portable liquid scintillation spectrometer radiation monitoring device, comprising a hollow structural body, a scintillation vial, and a detection light chamber. The scintillation vial is used to hold a mixture of a nuclide to be detected and scintillation fluid. The scintillation fluid includes a precipitated fluorescent substance. When the nuclide in the mixture radiates, the fluorescent substance in the scintillation fluid fluoresces and releases charged particles. The charged particles move freely in the scintillation fluid to generate secondary ionized electrons, forming an electron cascade, causing the fluorescent substance to emit light continuously. The detection light chamber is used to multiply the light emission and detect the multiplied light emission.

[0006] The structural body includes an upward upper shell;

[0007] The detection light chamber has a first opening, and the first opening faces the upper housing;

[0008] The detection light chamber is fixedly arranged inside the structural body, and the scintillation bottle is arranged outside the upper shell of the structural body;

[0009] The lower end of the scintillation vial can be placed into the first opening and is detachably connected to the first opening in a sealed manner.

[0010] Preferably, the portable liquid scintillation spectrometer radiation monitoring device further comprises a regulator, and the scintillation bottle is fixed on the regulator;

[0011] The regulator is cylindrical, and the interior of the regulator has an internal thread or a plug-in head around the cylindrical axis;

[0012] The upper end of the scintillation bottle has an external thread or a socket matching the plug head inside the regulator;

[0013] The external thread on the upper end of the scintillation bottle is fixedly matched with the internal thread of the regulator, or the plug head inside the regulator is fixedly matched with the socket on the upper end of the scintillation bottle;

[0014] The regulator has an external thread, and the first opening has an internal thread. The external thread of the regulator cooperates with the internal thread of the first opening to adjust the scintillation bottle to a proper position of the first opening.

[0015] Preferably, the detection light chamber includes a vertical channel and a horizontally arranged photomultiplier tube connected to the vertical channel, and the vertical channel has a first opening adjacent to the upper housing;

[0016] There are three photomultiplier tubes, and the three photomultiplier tubes are evenly distributed horizontally.

[0017] Preferably, the structural body includes a downward bottom frame, and the bottom frame is arranged opposite to the upper shell;

[0018] The portable liquid scintillation spectrometer radiation monitoring device further includes a refrigeration unit mounted on the bottom frame, the refrigeration unit including a refrigeration fin, a heat sink and a heat dissipation fan, and the refrigeration fin, the heat sink and the heat dissipation fan are respectively mounted on the bottom frame;

[0019] The number of the cooling fins is the same as the number of the photomultiplier tubes, each cooling fin corresponds to one photomultiplier tube, the cooling fin is arranged below the corresponding photomultiplier tube, the heat sink is arranged below the photomultiplier tube, and the cooling fan is arranged below the heat sink;

[0020] The portable liquid scintillation spectrometer radiation monitoring device further comprises a first thermal insulation layer and a second thermal insulation layer which are sequentially wrapped around the outer wall of the detection light chamber.

[0021] Preferably, the portable liquid scintillation spectrometer radiation monitoring device further includes a display, which is provided on the upper shell and is rotatably connected to an edge of the upper shell. When the display is attached to the upper shell, the main body lock provided on the structural body is locked with the display lock provided on the display.

[0022] Preferably, the cavity of the structural body is a hexahedron, the upper shell and the bottom frame are arranged opposite to each other in the vertical direction, and the structural body further has four peripheral side surfaces: a front side surface, a rear side surface, a left side surface, and a right side surface. The locking point between the main body lock and the display lock buckle is located near the front side surface and the upper shell surface. When facing the front side surface, the peripheral side surface on the left side is the left side surface, and when facing the front side surface, the peripheral side surface on the right side is the right side surface.

[0023] Preferably, the portable liquid scintillation spectrometer radiation monitoring device further comprises:

[0024] a handle provided on the front side;

[0025] A speaker provided on the upper housing for voice prompts and alarms;

[0026] an indicator light provided on the upper housing;

[0027] A power switch button is provided on the upper housing.

[0028] Preferably, the portable liquid scintillation spectrometer radiation monitoring device further comprises a circulation device, wherein the circulation device comprises:

[0029] An air inlet and an air inlet fan installed on the left side;

[0030] An air outlet and an air outlet fan installed on the rear side;

[0031] The air inlet and the air outlet are connected by an air circulation channel.

[0032] Preferably, the portable liquid scintillation spectrometer radiation monitoring device further includes a mainboard communication interface and a DC interface provided on the right side.

[0033] Preferably, the portable liquid scintillation spectrometer radiation monitoring device further comprises tabletop foot pads installed on the bottom frame and rear side for anti-slip and anti-collision purposes.

[0034] The above technical solution has the following beneficial effects: the sample to be tested is mixed with scintillation fluid and placed in a scintillation bottle. The radiation of the nuclide will cause the fluorescent substance in the scintillation fluid to fluoresce and release charged particles. These ionized electrons will move freely in the scintillation fluid, generating a large number of secondary ionized electrons, forming an electron cascade, thereby causing more luminescence events. Through sensitive photomultiplier tubes, these photons can be collected into the photomultiplier tubes and amplified to obtain charge pulse signals, thereby determining the number of radioactive nuclides. The radiation of radioactive nuclides is detected by utilizing the characteristics of the fluorescent substance precipitated in the liquid, which can achieve high sensitivity and high precision radionuclide counting. It is integrated with the data collection of the sample to be tested, has complete functions, is simple to operate, is portable and easy to carry, can be carried out in any scene for on-site testing, has fast scanning speed, and produces results in a short time. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 This is a schematic diagram of the first axial side of the portable liquid scintillation spectrometer radiation monitoring device according to an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the second peripheral structure of the portable liquid scintillation spectrometer radiation monitoring device according to an embodiment of the present utility model;

[0038] Figure 3 This is a cross-sectional view of a portable liquid scintillation spectrometer radiation monitoring device according to an embodiment of the present invention.

[0039] The diagram notation is:

[0040] 1. Main structure; 2. Display; 3. Rotating connector; 4. Detection light chamber; 5. Handle; 7. Bottom frame; 9. Upper shell; 10. Speaker; 11. Indicator light; 12. Button; 13. Display lock; 15. Air inlet fan; 16. Air outlet fan; 17. Main body lock; 18. Tabletop foot pad; 23. First insulation layer; 24. Second insulation layer; 26. Regulator; 28. Scintillation bottle; 30. Cooling fan; 31. Heat sink; 8. Outer shell; 19. First structural connector; 33. Second structural connector. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] like Figures 1 to 3 As shown, in conjunction with an embodiment of the present invention, a portable liquid scintillation spectrometer radiation monitoring device is provided, comprising a hollow structural body 1, a scintillation vial 28, and a detection light chamber 4. The scintillation vial 28 is used to hold a mixture of a nuclide to be detected and a scintillation liquid. The scintillation liquid includes a precipitated fluorescent substance. When the nuclide in the mixture radiates, the fluorescent substance in the scintillation liquid fluoresces and releases charged particles. The charged particles move freely in the scintillation liquid to generate secondary ionized electrons, forming an electron cascade, causing the fluorescent substance to emit light continuously. The detection light chamber 4 is used to multiply the light emission and detect the multiplied light emission.

[0043] The structural body 1 includes an upward upper shell 9;

[0044] The detection light chamber 4 has a first opening, and the first opening faces the upper housing 9;

[0045] The detection light chamber 4 is fixedly arranged inside the structural body 1, and the scintillation bottle 28 is arranged outside the upper shell 9 of the structural body 1;

[0046] The lower end of the scintillation vial 28 can be placed into the first opening and detachably connected to the first opening in a sealed manner.

[0047] Liquid scintillation technology, developed in the early 1950s, is an effective method for measuring low-energy beta rays. It can also be used to detect alpha rays, neutrons, gamma rays, and other radiation. Liquid scintillation spectrometers are widely used in industry, agriculture, biology, chemistry, medicine, pharmacy, geology, hydrology, archaeology, and the environment, with particular application value in nuclear pharmacy, environmental monitoring, and nuclear reactor safety monitoring.

[0048] The sample to be tested is mixed with scintillation fluid and placed in a scintillation vial 28. The radionuclide's radiation causes the fluorescent substance in the scintillation fluid to fluoresce and release charged particles. These ionized electrons move freely in the scintillation fluid, generating a large number of secondary ionized electrons, forming an electron cascade, which in turn causes more luminescence events. These photons are collected and amplified by a sensitive photomultiplier tube (PMT) to produce a charge pulse signal, thereby determining the amount of radionuclide present.

[0049] By utilizing the characteristics of fluorescent substances precipitated in liquid to detect the radiation of radionuclides, high-sensitivity and high-precision radionuclide counting can be achieved.

[0050] It is integrated with the data collection of the samples to be tested, has complete functions, is easy to operate, is portable and can be carried out in any scene for on-site testing, has fast scanning speed and short result time.

[0051] Preferably, the portable liquid scintillation spectrometer radiation monitoring device further comprises a regulator 26, and the scintillation bottle 28 is fixed on the regulator 26;

[0052] The regulator 26 is cylindrical, and the inside of the regulator 26 has an internal thread or a plug-in head around the cylindrical axis;

[0053] The upper end of the scintillation bottle 28 has an external thread or a socket that matches the plug head inside the regulator 26;

[0054] The external thread on the upper end of the scintillation bottle 28 is fixedly matched with the internal thread of the regulator 26, or the plug head inside the regulator 26 is fixedly matched with the socket on the upper end of the scintillation bottle 28;

[0055] The adjuster 26 has an external thread, and the first opening has an internal thread. The external thread of the adjuster 26 cooperates with the internal thread of the first opening to adjust the scintillation bottle 28 to a proper position of the first opening.

[0056] Place the sample in the scintillation vial 28 and screw the external threads on the upper end of the scintillation vial 28 directly into the internal threads of the regulator 26, or insert the plug inside the regulator 26 into the socket on the upper end of the scintillation vial 28 to install the scintillation vial 28. The regulator 26 is then screwed into the internal threads of the first opening of the detection light chamber 4 via its external threads. Because the liquid level of the sample to be tested varies, the depth to which the external threads of the regulator 26 are screwed into the detection light chamber 4 also varies. The external threads of the regulator 26 can be used to adjust the installation depth. Each clockwise rotation of the regulator 26 advances 3mm, while a counterclockwise rotation extends 3mm. The external threads of the regulator 26 are marked with scale lines, each scale mark equaling 0.1mm. Pressing button 12 causes the radionuclide radiation to cause the fluorescent substance in the scintillation fluid to fluoresce and release charged particles. These ionized electrons move freely within the scintillation fluid, generating a large number of secondary ionized electrons, forming an electron cascade, which in turn causes more luminescence events. These photons can be collected into photomultiplier tubes and amplified by sensitive photomultiplier tubes to obtain charge pulse signals, thereby determining the number of radioactive nuclides.

[0057] Preferably, the detection light chamber 4 includes a vertical channel and a horizontally arranged photomultiplier tube connected to the vertical channel, which is an electronic detection component in the prior art. The vertical channel has a first opening adjacent to the upper housing 9.

[0058] There are three photomultiplier tubes, which are evenly distributed horizontally and aligned with the center of the detection light chamber.

[0059] Preferably, the structural body 1 includes a downward bottom frame 7, and the bottom frame 7 is arranged opposite to the upper shell 9;

[0060] The portable liquid scintillation spectrometer radiation monitoring device further includes a refrigeration unit mounted on the bottom frame 7, the refrigeration unit including a refrigeration fin, a heat sink 31 and a cooling fan 30, the refrigeration fin, the heat sink 31 and the cooling fan 30 are respectively mounted on the bottom frame 7;

[0061] The number of the cooling fins is the same as the number of the photomultiplier tubes. Each cooling fin corresponds to one photomultiplier tube. The cooling fins are arranged below the corresponding photomultiplier tubes. The heat sink 31 is arranged below the photomultiplier tubes. The cooling fan 30 is arranged below the heat sink 31.

[0062] The entire detection light chamber 4 is cooled and cooled to a temperature of 0-15 degrees by the cooling plate, and the heat sink 31 and the cooling fan 30 dissipate the heat generated on the back of the cooling plate.

[0063] The portable liquid scintillation spectrometer radiation monitoring device further comprises a first insulation layer 23 and a second insulation layer 24 sequentially wrapped around the outer wall of the detection light chamber 4 to perform thermal insulation treatment on the photomultiplier tube of the detection light chamber 4 .

[0064] Since the normal operating temperature of the photomultiplier tube is below 15 degrees Celsius, and the portable liquid scintillation spectrometer does not operate in a specific environment, the temperature must be controlled. The first insulation layer 23 is a sealed soft material layer that is airtight, and the second insulation layer 24 is a structural wrapping layer that protects against external heat radiation.

[0065] Preferably, the portable liquid scintillation spectrometer radiation monitoring device also includes a display 2 for system operation and detection data display, including a display screen front frame and a back cover, which is connected to the main board provided in the structural body 1. The display 2 is provided on the upper shell 9, and the display 2 is rotatably connected to one edge of the upper shell 9 through a rotating connector 3, and can be rotated and stopped at any angle of 0-180°. The rotating connector 3 includes upper and lower fixing parts and a damping shaft respectively fixed to the display of the structural body 1, with a hole in the middle passing through the line. When the display 2 is attached to the upper shell 9, the main body lock 17 provided on the structural body 1 is locked with the display lock 13 provided on the display 2. At the same time, when the lock button is manually pressed again, the display is pushed up a small angle by the ejector pin, so that the display lock 13 is separated from the lock, and then the display 2 is manually rotated to the desired angle for operation.

[0066] Preferably, the cavity of the structural body 1 is a hexahedron, the upper shell 9 and the bottom frame 7 are arranged opposite to each other in the upper and lower directions, and the structural body 1 also has four peripheral sides (shell 8): a front side, a rear side, a left side and a right side. The locking part of the main body lock 17 and the display lock buckle 13 is located near the front side and the upper shell 9. When facing the front side, the peripheral side on the left is the left side, and when facing the front side, the peripheral side on the right is the right side; the bottom frame 7, the upper shell 9 and the shell 8 are connected by a first structural connector 19 and a second structural connector 33.

[0067] Preferably, the portable liquid scintillation spectrometer radiation monitoring device further comprises:

[0068] The hidden handle 5 provided on the front side can be used to carry the device after the display 2 is buckled onto the structural body 4, thereby achieving portable movement and carrying; the handle can be automatically folded back by a self-contained rebound mechanism.

[0069] A speaker 10 for voice prompts and alarms provided on the upper housing 9;

[0070] An indicator light 11 provided on the upper housing 9 is used to indicate various information during operation.

[0071] The power on / off button 12 provided on the upper housing 9 is used to turn on / off the power and start the running detection program.

[0072] Of course, it also includes control systems such as power supply batteries, power boards, main boards, analog boards and acquisition cards.

[0073] The specific structures not described in the embodiments of the present invention are all prior art and are not improved in the embodiments of the present invention.

[0074] Preferably, the portable liquid scintillation spectrometer radiation monitoring device further includes a circulation device, comprising: an air inlet and an air inlet fan 15 mounted on the left side; an air outlet and an air outlet fan 16 mounted on the rear side; the air inlet and the air outlet are connected by an air circulation channel, sucking in cold air from the outside and bringing out hot air, thereby circulating the air.

[0075] Preferably, the portable liquid scintillation spectrometer radiation monitoring device further includes a mainboard communication interface and a DC interface provided on the right side, which can be connected to an external computer device and a charging power supply.

[0076] Preferably, the portable liquid scintillation spectrometer radiation monitoring device further comprises anti-skid and anti-collision table foot pads 18 installed on the bottom frame 7 and the rear side, which can prevent the device from being scratched by collisions and can also prevent slipping.

[0077] It should be understood that in the foregoing detailed description, various features are grouped together in a single embodiment to simplify the disclosure. This method of disclosure should not be interpreted as reflecting an intention that embodiments of the claimed subject matter require more features than are expressly recited in each claim. On the contrary, as reflected in the appended claims, the invention comprises less than all the features of a single disclosed embodiment. The appended claims are therefore hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

[0078] The above description of the disclosed embodiments is intended to enable any person skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments presented herein but is intended to be consistent with the broadest scope of the principles and novel features disclosed herein.

[0079] The foregoing description includes examples of one or more embodiments. Of course, it is not possible to describe all possible combinations of components or methods for the purposes of describing the above embodiments, but one of ordinary skill in the art will recognize that the various embodiments may be further combined and arranged. Therefore, the embodiments described herein are intended to encompass all such changes, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent the term "comprising" is used in the specification or claims, the term is intended to be encompassed in a manner similar to the term "including," as explained in terms of "including," used as a transitional word in the claims. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or."

[0080] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A portable liquid scintillation spectrometer radiation monitoring device, characterized in that: The invention comprises a structural body (1) with a cavity, a scintillation bottle (28) and a detection light chamber (4). The scintillation bottle (28) is used to hold a mixture of a nuclide to be detected and a scintillation liquid. The scintillation liquid includes a precipitated fluorescent substance. When the nuclide in the mixture radiates, the fluorescent substance in the scintillation liquid fluoresces and releases charged particles. The charged particles move freely in the scintillation liquid to generate secondary ionized electrons, forming an electron cascade, causing the fluorescent substance to emit light continuously. The detection light chamber (4) is used to multiply the light emission and detect the multiplied light emission. The structural body (1) comprises an upwardly directed upper shell (9); The detection light chamber (4) has a first opening, and the first opening faces the upper housing (9); The detection light chamber (4) is fixedly arranged inside the structural body (1), and the scintillation bottle (28) is arranged outside the upper shell (9) of the structural body (1); The lower end of the scintillation bottle (28) can be placed into the first opening and is detachably connected to the first opening in a sealed manner.

2. The portable liquid scintillation spectrometer radiation monitoring device according to claim 1, characterized in that: Also included is a regulator (26), wherein the scintillation bottle (28) is fixed on the regulator (26); The regulator (26) is cylindrical, and the inside of the regulator (26) has an internal thread or a plug-in head around the cylindrical axis; The upper end of the scintillation bottle (28) has an external thread or a socket that matches the plug head inside the regulator (26); The external thread on the upper end of the scintillation bottle (28) is fixedly matched with the internal thread of the regulator (26), or the plug-in head inside the regulator (26) is fixedly matched with the socket on the upper end of the scintillation bottle (28); The regulator (26) has an external thread, and the first opening has an internal thread. The external thread of the regulator (26) cooperates with the internal thread of the first opening to adjust the scintillation bottle (28) to a suitable position of the first opening.

3. The portable liquid scintillation spectrometer radiation monitoring device according to claim 1, characterized in that: The detection light chamber (4) comprises a vertical channel and a horizontally arranged photomultiplier tube connected to the vertical channel, and the vertical channel has a first opening adjacent to the upper housing (9); There are three photomultiplier tubes, and the three photomultiplier tubes are evenly distributed horizontally.

4. The portable liquid scintillation spectrometer radiation monitoring device according to claim 3, characterized in that: The structural body (1) comprises a downward bottom frame (7), and the bottom frame (7) is arranged relative to the upper shell (9); The portable liquid scintillation spectrometer radiation monitoring device further comprises a refrigeration unit mounted on the bottom frame (7), the refrigeration unit comprising a refrigeration fin, a heat sink (31) and a heat dissipation fan (30), and the refrigeration fin, the heat sink (31) and the heat dissipation fan (30) are respectively mounted on the bottom frame (7); The number of the cooling fins is the same as the number of the photomultiplier tubes, each cooling fin corresponds to one photomultiplier tube, the cooling fin is arranged below the corresponding photomultiplier tube, the heat sink (31) is arranged below the photomultiplier tube, and the heat dissipation fan (30) is arranged below the heat sink (31); The portable liquid scintillation spectrometer radiation monitoring device further comprises a first heat-insulating layer (23) and a second heat-insulating layer (24) which are sequentially wrapped around the outer wall of the detection light chamber (4).

5. The portable liquid scintillation spectrometer radiation monitoring device according to claim 4, characterized in that: The structure also includes a display (2), which is arranged on the upper shell (9) and is rotatably connected to an edge of the upper shell (9). When the display (2) is attached to the upper shell (9), a main body lock (17) arranged on the structural body (1) is locked with a display lock (13) arranged on the display (2).

6. The portable liquid scintillation spectrometer radiation monitoring device according to claim 5, characterized in that: The cavity of the structural body (1) is a hexahedron, the upper shell (9) and the bottom frame (7) are arranged opposite to each other in the upper and lower directions, and the structural body (1) also has four peripheral side surfaces: a front side surface, a rear side surface, a left side surface and a right side surface. The locking position of the main body lock (17) and the display lock buckle (13) is located near the front side surface and the upper shell (9). When facing the front side surface, the peripheral side surface on the left side is the left side surface, and when facing the front side surface, the peripheral side surface on the right side is the right side surface.

7. The portable liquid scintillation spectrometer radiation monitoring device according to claim 6, characterized in that: Also includes: a handle (5) provided on the front side; A speaker (10) provided on the upper housing (9) for voice prompts and alarms; an indicator light (11) provided on the upper housing (9); A power switch button (12) is provided on the upper housing (9).

8. The portable liquid scintillation spectrometer radiation monitoring device according to claim 6, characterized in that: Also included is a circulation device, the circulation device comprising: An air inlet and an air inlet fan (15) installed on the left side; An air outlet and an air outlet fan (16) installed on the rear side; The air inlet and the air outlet are connected by an air circulation channel.

9. The portable liquid scintillation spectrometer radiation monitoring device according to claim 6, characterized in that: It also includes a mainboard communication interface and a DC interface located on the right side.

10. The portable liquid scintillation spectrometer radiation monitoring device according to claim 6, characterized in that: It also includes tabletop foot pads (18) installed on the bottom frame (7) and the rear side for anti-slip and anti-collision purposes.

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