An experimental measuring device for sgemp photoelectron signals

Abstract

The application discloses a kind of SGEMP photoelectron signal experimental measuring device, including the outer shell of cylindrical structure, the front end of the outer shell is equipped with injection module, test material is installed in the injection module;The inside of the outer shell is equipped with antenna array module, the antenna array module includes antenna array disc and several groups of antennas, the antenna array disc is opposite injection module, and antenna array disc is slidably assembled in the inside of outer shell along the axis of outer shell, each the circular array of the antenna is distributed on antenna array disc;The rear end of the outer shell is equipped with wire slot channel, for threading antenna signal cable.The beneficial effects of the application are: when X-ray is irradiated to various materials to produce SGEMP photoelectron, the intensity, velocity and emission intensity distribution state of SGEMP photoelectron can be detected.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic pulse radiation detection, and more specifically to an experimental measurement device for SGEMP photoelectron signals. Background Technology

[0002] When X-rays irradiate any material, they generate photoelectrons. When X-rays irradiate a metal cavity, the movement of photoelectrons and the rebalancing of charges within the cavity structure generate electromagnetic pulses (SGEMPs) within the cavity. SGEMPs create a harsh radiation environment containing X-rays, photoelectrons, and electromagnetic fields, which is difficult to shield effectively. They directly affect various circuits, cables, and components inside the metal cavity, impacting the normal operation of electronic systems and, in severe cases, even causing system failure.

[0003] Therefore, detecting the generation of SGEMP photoelectrons by various materials under X-ray irradiation can play a crucial role in the research of electromagnetic pulse radiation resistance. Currently, research in the field of SGEMP photoelectron detection is still lacking, and there is a lack of practical methods to detect specific information about the generation of SGEMP photoelectrons by various materials under X-ray irradiation, especially information about the intensity, velocity, and emission intensity distribution of SGEMP photoelectrons. Summary of the Invention

[0004] In view of this, the present invention provides an experimental measurement device for SGEMP photoelectron signals. When SGEMP photoelectrons are generated by X-ray irradiation of various materials, the device can detect information such as the intensity, velocity, and emission intensity distribution of the SGEMP photoelectrons.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A test and measurement device for SGEMP optoelectronic signals includes a cylindrical housing, characterized in that: an injection module is mounted at the front end of the housing, and test material is installed inside the injection module; an antenna array module is installed inside the housing, the antenna array module including an antenna array disk and several antennas, the antenna array disk facing the injection module and slidingly mounted inside the housing along the axial direction of the housing, with each of the circular antenna arrays distributed on the antenna array disk; and a wire channel is mounted at the rear end of the housing for passing antenna signal cables.

[0007] With the above structure, the antenna array is mounted on the antenna array disk. This not only allows for the measurement of information such as the intensity and velocity of SGEMP photoelectrons, but also the monitoring of the SGEMP photoelectron emission intensity distribution. By moving the antenna array disk back and forth, the SGEMP photoelectron emission intensity distribution at different depths can be monitored. Furthermore, the shape distribution of the SGEMP photoelectrons can be evaluated through calculation.

[0008] Preferably, the injection module includes an injection top cover and an injection base, the injection top cover and the injection base cooperating, and an injection chamber for installing test materials is provided between the injection top cover and the injection base; the front end face of the outer shell is provided with a copper top cover, and the copper top cover has mounting holes. With the above structure, test materials can be placed in the injection chamber.

[0009] Preferably, the injection top cover has a ray hole on its front end face, and the injection base has a protruding mounting part with a ray channel inside. The mounting part mates with the mounting hole, and the mounting part is threaded onto the mounting hole. With the above structure, X-rays enter through the ray hole, the injection module is threaded onto the copper top cover, and SGEMP photoelectrons pass through the ray channel to reach the antenna array.

[0010] Preferably, the injection module includes an outer top cover, a transition component, and a mounting assembly. The outer top cover is fixed to the front end of the transition component, the transition component is fixed to the front end face of the outer shell, and the mounting assembly is fixed to the rear end of the transition component. A through second ray channel is provided in the middle of the injection module. The mounting assembly includes a first mounting member, a second mounting member, and a fixing member connected sequentially from left to right. The first mounting member, the second mounting member, and the fixing member are all fixed by screws, and the screws fix the mounting assembly to the rear end of the transition component. The test material is installed between the first mounting member and the second mounting member. With the above structure, the gap between the first mounting member and the second mounting member can be adjusted by adjusting the screws, thereby realizing the installation and removal of the test material.

[0011] Preferably, the antenna array disk has a central antenna aperture and auxiliary antenna apertures arranged in a circumferential array along the central antenna aperture. Antennas are mounted on both the central antenna aperture and each of the auxiliary antenna apertures, with the centerline of the central antenna aperture coinciding with the centerline of the injection module. Using this structure, the antennas can detect the intensity information of SGEMP photoelectrons. The antennas, mounted on the central antenna aperture and auxiliary antenna apertures, can provide vector information about the emission direction of the SGEMP photoelectrons from the intensity information received by the antennas at different positions. The shape distribution of the SGEMP photoelectrons can then be calculated using a suitable physical model.

[0012] Preferably, the front faces of all the antennas are located on the same vertical plane. This structure allows all antennas to receive SGEMP photoelectron intensity information on the same horizontal plane, leading to more accurate calculations of the shape distribution of SGEMP photoelectrons in subsequent calculations.

[0013] Preferably, the antenna array disk is made of Teflon or polyethylene. With the above structure, the antenna array disk, made of Teflon or polyethylene, has almost no impact on microwave propagation, making it suitable for testing environments.

[0014] Preferably, the antenna array disk has a protrusion on its outer ring. The protrusion is a ring-shaped structure that extends to both sides along the thickness direction of the antenna array disk, and the cross-section of the antenna array disk is I-shaped. With this structure, the protrusion widens the edge of the antenna array disk, preventing it from tilting inside the test cylinder and affecting the accuracy of the antenna reception results. This ensures good contact with the inner wall of the cylinder at all times.

[0015] Preferably, the rear end of the outer casing is provided with a wire channel, which is a through-hole cylinder; several sets of first fixing members are symmetrically arranged at the rear of the outer casing, and a vertical second fixing member is provided at the rear end of the wire channel. With the above structure, the wire channel can guide the antenna signal line out, constraining and protecting the cable, while also preventing interference. The measuring device can be fixed on a horizontal plane using the first and second fixing members.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The antenna array disk not only has an antenna installed at the center, but also multiple sets of antennas are installed in a circular array. The antennas installed in the circular array are symmetrical along the central axis of the antenna array disk. The vector information of the SGEMP photoelectron emission direction can be determined by the SGEMP photoelectron intensity signal received by different antennas.

[0018] 2. The antenna array is mounted in the housing by sliding back and forth, which can measure the vector information of the SGEMP photoelectron emission direction at different depth positions of the housing, and then calculate the shape distribution of the SGEMP photoelectrons. Attached Figure Description

[0019] Figure 1 A schematic diagram of the experimental measurement device for SGEMP photoelectronic signals;

[0020] Figure 2 A cross-sectional view of the experimental measurement device for SGEMP photoelectronic signals;

[0021] Figure 3 A cross-sectional view of another implementation of the experimental measurement device for SGEMP optoelectronic signals;

[0022] Figure 4 This is a front view of the antenna array disk 21;

[0023] Figure 5 This is a cross-sectional view of injection module 3;

[0024] Figure 6 A schematic diagram illustrating the measurement principle of uniform and symmetrical photoelectron emission in SGEMP.

[0025] Figure 7 This is a schematic diagram illustrating the measurement principle of uniformly biased emission of SGEMP photoelectrons. Detailed Implementation

[0026] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0027] like Figure 2 and Figure 3 As shown, an experimental measurement device for SGEMP photoelectron signals has a sealed outer shell 1. The outer shell 1 is an aluminum cylindrical shell, which can effectively shield ionizing radiation and electromagnetic radiation, reducing interference to the measurement. An antenna array module 2 is slidably mounted inside the outer shell 1. The antenna array module 2 includes an insulated antenna array disk 21 and several antennas 22 arrayed on the antenna array disk 21. An injection module 3 is assembled at the front end of the outer shell 1, with the antenna array module 2 facing the injection module 3. The injection module 3 holds the test material A. Based on this design, X-rays are injected into the injection module 3. After receiving X-ray irradiation, the test material A emits SGEMP photoelectrons into the cavity, forming a specific cone-shaped emission. The SGEMP photoelectrons generate a spatial current, producing electromagnetic wave emission, i.e., SGEMP. The antennas arrayed on the antenna array module 2 can receive the SGEMP signal. By detecting the SGEMP signal, the intensity, velocity, and other information of the SGEMP photoelectrons can be measured.

[0028] like Figure 3 and Figure 5As shown, the injection module 3 includes an injection top cover 31 and an injection base 32. The injection top cover 31 and the injection base 32 cooperate with each other, and an injection chamber 33 is provided between the injection top cover 31 and the injection base 32. The injection chamber 33 is used to install the test material A. The front end face of the injection top cover 31 has a X-ray hole 311 for X-ray entry. The injection base 32 has a protruding mounting part 321, and the mounting part 321 has a X-ray channel 322 inside. The X-ray channel 322, the X-ray hole 311, the injection chamber 33 and the central axis of the antenna array disk 21 are on the same straight line. The front end face of the outer shell 1 has a copper top cover 11. The copper top cover 11 is 1mm thick and can effectively shield ionizing radiation and electromagnetic radiation, reducing interference to the measurement. The copper top cover 11 has a mounting hole 111. The mounting part 321 cooperates with the mounting hole 111 and is fixed to the mounting hole 111 by threads, so that the injection module 3 is fixed to the outer shell 1. Based on the above design, X-rays enter through the central axis of X-ray aperture 311 and are then injected into the test material A in chamber 33. After being irradiated, the material emits SGEMP photoelectrons in a cone shape. The SGEMP photoelectrons enter the interior of the outer shell 1 through X-ray channel 322.

[0029] In addition, injection module 3 can also have another installation structure; please refer to [the documentation / reference]. Figure 2 The injection module 3 includes an outer top cover a1, a transition component a2, and a mounting assembly a3. The outer top cover a1 is fixed to the front end of the transition component a2, which is fixed to the front end face of the outer shell 1. The mounting assembly a3 is fixed to the rear end of the transition component a2. A second ray channel a4 is provided in the middle of the injection module 3, and the second ray channel a4 is on the same straight line as the central axis of the antenna array disk 21. The mounting assembly a3 includes a first mounting component a31, a second mounting component a32, and a fixing component a33 connected sequentially from left to right. The first mounting component a31, the second mounting component a32, and the fixing component a33 are all fixed by screws a34. There are several sets of screws a34, and the several sets of screws a34 are arranged in a circumferential array to fix the mounting assembly a3 to the rear end of the transition component a2. The space between the first mounting component a31 and the second mounting component a32 is used to install the test material A. The gap between the first mounting component and the second mounting component can be adjusted by adjusting the screws a34, thereby realizing the installation and removal of the test material A.

[0030] like Figure 1As shown, the rear end of the outer casing 1 is provided with a long, straight cable channel 12, which is a through-cylinder that guides the antenna signal line out, constrains and protects the cable, and also serves to prevent interference. Several sets of first fixing members 131 are symmetrically arranged at the rear of the outer casing 1. The first fixing members 131 are rectangularly distributed. A vertical second fixing member 132 is provided at the rear end of the cable channel 12. Both the first fixing members 131 and the second fixing member 132 are bent, and their lower end faces are on the same horizontal plane, ensuring that the SGEMP optoelectronic signal testing and measurement device can be installed horizontally.

[0031] like Figure 2 and Figure 4 As shown, the antenna array disk 21 is made of Teflon or polyethylene, which has almost no impact on microwave propagation and is suitable for the testing environment. The antenna array disk 21 has a disc structure and is vertically installed inside the housing 1. The outer ring of the antenna array disk 21 has a protrusion 213, which is a ring structure and extends to both sides along the thickness direction of the antenna array disk 21. The outer ring surface of the protrusion 213 always remains in close contact with the inner wall of the housing 1. The cross-section of the antenna array disk 21 is I-shaped. The protrusion 213 can prevent the antenna array disk 21 from tilting inside the housing 1, which would cause the measured SGEMP photoelectronic signals to be not on the same vertical plane.

[0032] like Figure 3 and Figure 4 As shown, the antenna array disk 21 includes a central antenna aperture 211 and auxiliary antenna apertures 212. The central antenna aperture 211 is located at the very center of the antenna array disk 21. There are eight groups of auxiliary antenna apertures 212. In addition, different numbers of groups can be set according to the requirements, such as 4 groups, 6 groups, 10 groups, etc. The auxiliary antenna apertures 212 are located near the central antenna aperture 211. The auxiliary antenna apertures 212 are arranged in a circular array on the antenna array disk 21 with the central antenna aperture 211 as the center. The auxiliary antenna apertures 212 are symmetrical about each other along the central axis of the central antenna aperture 211. The antennas 22 are all fixed on all auxiliary antenna apertures 212 and the central antenna aperture 211. The antennas 22 include a central antenna 221 mounted on the central antenna aperture 211 and auxiliary antennas 222 mounted on the auxiliary antenna apertures 212. The front end faces of all antennas 22 are on the same vertical plane, so that all antennas 22 collect SGEMP photoelectron intensity information on the same vertical plane, making the calculation results of the shape distribution of SGEMP photoelectrons more accurate. Signal cables are connected to the rear end of each antenna 22, and the signal cables are all led out through the cable tray channel 12.

[0033] In this embodiment, the working principle of antenna array module 2 is as follows:

[0034] After being irradiated with X-rays, test material A emits SGEMP photoelectrons in a cone shape. These SGEMP photoelectrons enter the interior of the outer casing 1 through X-ray channel 322, forming a spatial current that generates electromagnetic waves, i.e., SGEMP. Antenna 22 can detect the SGEMP signal and measure information such as the intensity and velocity of the SGEMP photoelectrons. Please refer to... Figure 6 When the intensity of the SGEMP signal detected on the central antenna 221 is greater than that detected on all auxiliary antennas 222, and the SGEMP signal intensities on all auxiliary antennas 222 are approximately equal, it indicates that the SGEMP photoelectrons emitted by the test material A after X-ray irradiation are uniformly and symmetrically emitted along the central axis of the antenna array disk 21, thus obtaining the vector information of the SGEMP photoelectron emission direction. Then, the antenna array disk 21 is moved back and forth to measure the SGEMP signal intensities on the central antenna 221 and all auxiliary antennas 222 at different depths within the outer casing, thereby calculating the shape distribution of the SGEMP photoelectrons; please refer to... Figure 7 When the SGEMP signal intensity detected on antenna 22 decreases sequentially, and the SGEMP signal intensity detected by a certain auxiliary antenna 222 is the largest, while the SGEMP signal intensity detected by the central antenna 221 is not the largest, it indicates that after the test material A is irradiated with X-rays, the emitted SGEMP photoelectrons are deflected towards the central axis of the antenna array disk 21, and the direction of deflection is the direction of the auxiliary antenna 222 where the SGEMP signal intensity is the largest. This yields the vector information of the SGEMP photoelectron emission direction. Then, the antenna array disk 21 is moved back and forth, and the SGEMP signal intensity on the central antenna 221 and all auxiliary antennas 222 is measured at different depths within the outer casing 1, thereby calculating the shape distribution of the SGEMP photoelectrons.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention. Those skilled in the art, under the guidance of the present invention, can make various similar representations without departing from the spirit and claims of the present invention, and such modifications all fall within the protection scope of the present invention.

Claims

1. A test and measurement device for SGEMP photoelectronic signals, comprising a cylindrical outer shell (1), characterized in that: The front end of the outer shell (1) is equipped with an injection module (3), and the injection module (3) contains test material (A); the interior of the outer shell (1) is equipped with an antenna array module (2), which includes an antenna array disk (21) and several antennas (22). The antenna array disk (21) faces the injection module (3), and the antenna array disk (21) is slidably mounted inside the outer shell (1) along the axial direction of the outer shell (1). Each of the antennas (22) is arranged in a circular array on the antenna array disk (21); the rear end of the outer shell (1) is equipped with a wire channel (12) for passing through antenna signal cables. The injection module (3) includes an outer top cover (a1), a transition component (a2), and an installation component (a3). The outer top cover (a1) is fixedly mounted on the front end of the transition component (a2), the transition component (a2) is fixedly mounted on the front end face of the outer shell (1), and the installation component (a3) ​​is fixedly mounted on the rear end of the transition component (a2). The injection module (3) has a through second ray channel (a4) in the middle. The installation component (a3) ​​includes a first mounting part (a31), a second mounting part (a32), and a fixing part (a33) connected sequentially from left to right. The first mounting part (a31), the second mounting part (a32), and the fixing part (a33) are all fixedly connected by screws (a34), and the screws (a34) fix the installation component (a3) ​​to the rear end of the transition component (a2). The test material (A) is installed between the first mounting part (a31) and the second mounting part (a32). The antenna array disk (21) is provided with a central antenna hole (211) and auxiliary antenna holes (212) arranged in a circumferential array along the central antenna hole (211). An antenna (22) is installed on the central antenna hole (211) and each of the auxiliary antenna holes (212). The center line of the central antenna hole (211) coincides with the center line of the injection module (3).

2. The experimental measurement device for SGEMP photoelectronic signals according to claim 1, characterized in that: The front end face of each of the antennas (22) is on the same vertical plane.

3. The experimental measurement device for SGEMP photoelectronic signals according to claim 1, characterized in that: The antenna array disk (21) is made of Teflon or polyethylene.

4. The experimental measurement device for SGEMP photoelectronic signals according to claim 1, characterized in that: The antenna array disk (21) has a protrusion (213) on its outer ring. The protrusion (213) is a ring structure and extends to both sides along the thickness direction of the antenna array disk (21). The cross-section of the antenna array disk (21) is I-shaped.

5. The experimental measurement device for SGEMP photoelectronic signals according to claim 1, characterized in that: The outer shell (1) is symmetrically provided with several sets of first fixing members (131) at the rear, and the rear end of the wire groove channel (12) is provided with a vertical second fixing member (132).

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