57 results about "Radiation testing" patented technology

The invention relates to the technical field of SRAM (Static Random Access Memory) memory anti-radiation testing, and discloses an SRAM memory anti-radiation testing method and system based on running state injection, and the method comprises the following steps: system initialization, mapping preparation and time sequence baseline establishment; carrying out model quantitative compiling, sensitivity analysis and physical bit candidate generation; generating a running state injection plan and loading a test case; performing operation state execution, disturbance injection and synchronous monitoring acquisition; multi-source triggering, weight read-back and fault decoupling judgment are carried out; and performing quantitative evaluation on anti-radiation performance, constructing a degradation curve and outputting a report. The system corresponds to the method. According to the invention, a hardware-in-the-loop operation state injection and online evaluation technology is constructed, and the technical problems of guidance and position limited disturbance / equivalent irradiation injection based on weight bit level sensitivity and logic-physical mapping are solved.

The utility model discloses an in-situ synchrotron radiation device for testing a core element of a thin film capacitor, and belongs to in-situ synchrotron radiation testing equipment. In order to achieve in-situ synchrotron radiation testing of a core element of the thin-film capacitor, the core element is installed in a containing cavity of a shell, a temperature control mechanism is installed on the shell and adjusts the temperature of the containing cavity of the shell, and a high-voltage polarization power source is connected with the two ends of the core element to apply voltage. The pressure regulating mechanism comprises two pressure regulating plates and a pressure regulating driving assembly, the two pressure regulating plates are respectively mounted on two sides of the core element, and the pressure regulating driving assembly is connected with the two pressure regulating plates and regulates the distance between the two pressure regulating plates; the synchrotron radiation light source and the signal receiving plate are respectively arranged at two sides of the shell, two side walls of the shell are respectively provided with a light hole I, each pressure regulating plate is provided with a light hole II, the synchrotron radiation light source emits x-rays, the x-rays irradiate the core element, and then the x-rays are received by the signal receiving plate. The device is used for realizing the in-situ synchrotron radiation test of the core element.

The utility model relates to the technical field of thermal radiation testing equipment, and particularly provides a surface thermal radiation testing device, which comprises a fixed bracket, a heating substrate and a first receiving substrate, and is characterized in that the fixed bracket is provided with a hollow cavity; the emission substrate is vertically arranged in the hollow cavity; the emission substrate is used for emitting heat radiation; the first receiving substrate is located on one side of the transmitting substrate, and the first receiving substrate is vertically arranged in the hollow cavity; a first test space is formed between the transmitting substrate and the first receiving substrate; the transmitting substrate and the first receiving substrate respectively form a thermocouple structure, and the surface thermal radiation value of the to-be-detected material placed in the first testing space is obtained through comparison and calculation. The transmitting substrate and the first receiving substrate of the surface heat radiation testing device are both vertically arranged in the hollow cavity, and the centers of the transmitting substrate and the first receiving substrate are positioned on the same axis and are aligned, so that the result of each test can be repeated.

To provide a radiation inspection device that can acquire a transparent image with high image quality regardless of the level of skill of a user by automatically adjusting the thickness or material of a filter.SOLUTION: A radiation inspection device comprises: a radiation source 2 that emits a radiation beam; a detector 3 that is provided opposite to the radiation source 2 and receives input of the radiation beam; a filter adjustment unit 4 that adjusts the attenuation factor of a filter F provided between the radiation source 2 and the detector 3 so as to attenuate the signal quantity I0 of radiation beam input to the detector 3; and a determination unit 942 that compares the signal quantity I0 of the radiation beam with a predetermined signal quantity Is. The filter adjustment unit 4 adjusts the attenuation factor of the filter F so that the signal quantity I0 of the radiation beam becomes equal to or less than the predetermined signal quantity Is.SELECTED DRAWING: Figure 1

The application relates to the field of resistive random access memory (RRAM), and specifically discloses a total dose radiation test method for RRAM, which comprises the following steps: grouping a plurality of RRAMs to obtain M groups of RRAMs, each group of RRAMs comprising N RRAMs, and the M groups of RRAMs corresponding to M initial resistance states respectively; performing a total dose radiation experiment on the M groups of RRAMs; and performing a cycle endurance experiment on the M groups of RRAMs, wherein the result of the cycle endurance experiment is used to indicate a test result of the RRAMs related to the total dose radiation. Through the test method, the change in the endurance of the RRAMs after being subjected to total dose radiation can be simulated, so as to provide an optimization scheme for the application of the RRAMs in a total dose radiation environment.

The invention discloses a vehicle radiation test method, device and equipment and a storage medium, and relates to the technical field of vehicle-mounted testing, and the method comprises the steps: obtaining a vehicle radiation temperature signal and a test parameter, obtaining radiation data according to the vehicle radiation temperature signal, testing the radiation data according to the test parameter, and obtaining a test result, and sending the test result to a vehicle-mounted screen for display. The non-contact sensor is used for capturing the vehicle radiation temperature, the vehicle radiation temperature is converted and processed into radiation data, and the test result is displayed through the vehicle-mounted screen, so that the vehicle electromagnetic radiation is tested, and the vehicle radiation test effect is improved.

The invention relates to the technical field of irradiation tests. The invention discloses an irradiation test system suitable for a lead-bismuth reactor. The irradiation test system comprises a main cooling system, a switching system and an irradiation test subsystem. The multiple irradiation test subsystems are arranged, and the types of cooling media in the multiple irradiation test subsystems are different. The plurality of irradiation test subsystems are connected with the main cooling system through the switching system, and the main cooling system is used for cooling a cooling medium in at least one irradiation test subsystem. The main cooling system and the multiple irradiation test subsystems are arranged, the types of the cooling media in the multiple irradiation test subsystems are different, at least one irradiation test subsystem can be cooled through the main cooling system, and the cooling media in the multiple irradiation test subsystems can be cooled through the main cooling system according to the requirements of the test fuel assembly. And the switching system is used for switching to a required cooling medium environment, so that the construction cost of the test system is reduced, the occupied space is reduced, and the utilization efficiency of the test system is improved.

The present application relates to the technical field of aircraft testing, and discloses a radiation and conduction overlapping frequency band HIRF comprehensive sensitivity test device and a test method, the device comprising a reverberation chamber and a test control system, a grounding panel and a support seat are arranged in the reverberation chamber, the support seat is arranged on the grounding panel, a device under test is placed on the upper surface of the support seat, a stirrer is arranged at a corner of the reverberation chamber, and the test control system is in bidirectional communication with a signal generation and processing system, an adaptive delay compensation system, a radiation test system, a conduction test system, an optoelectronic conversion system and a measurement receiver. The present application aligns the arrival time of a radiation field and conduction interference at the device under test through the adaptive delay compensation system, reproduces the electromagnetic energy synchronous coupling effect in the HIRF environment, combines field strength closed-loop control and conduction current monitoring feedback, synchronously applies a radiation field strength and wire bundle injection current that meet standard levels, and realizes verification of the coupling mechanism of radiation-conduction comprehensive sensitivity.

The present application relates to a kind of separation identification and monitoring method and system of radiation background noise, in separation identification and monitoring method, background noise and equipment emission signal are synchronously collected by multiple fixed reference antennas and main antenna, and time synchronization is realized by central synchronous unit.First, based on spectrum comparison, background noise probability is calculated, and first grade is filtered out;Second, baseline model is established according to reference antenna data, abnormal signal is identified and its source is judged, and burst background noise and equipment real emission are distinguished;Second grade is filtered out by using pre-stored feature library for matching identification;Finally, the comparison result of real emission signal and background noise after filtering is displayed on test interface, and the data exceeding the standard is automatically marked, test margin is calculated and conclusion is generated.Compared with prior art, the present application can effectively solve the technical problem that background noise and equipment signal are difficult to separate in real time and accurately in complex electromagnetic environment, and the reliability and efficiency of radiation test are significantly improved.

The invention discloses a power-off locking moving device for ionizing radiation testing, which belongs to the technical field of radiation testing in ionizing radiation sites, and comprises a lifting platform for adjusting the height of a tested object, wherein the lifting platform is slidably mounted on a lateral moving platform located on a lateral moving device, and the lateral moving device is mounted on a horizontal moving platform located on a horizontal moving device. The invention uses a power-off self-locking device to keep the moving device locked with a guide rail when power is off, thereby improving the accuracy of the test while reducing electromagnetic interference, and the power-off self-locking mechanism cooperates with the side wall of the guide rail and can be applied to locking at any position, thereby increasing the operability of the power-off self-locking.

In order to solve the technical problem that the traditional nuclear-grade resin research is difficult to accurately grasp the performance of nuclear-grade resin under different physical fields due to the single factor, the embodiment of the present invention provides a nuclear-grade resin comprehensive application performance test device, including: a closed-loop detection circuit; the closed-loop detection circuit is provided with: a water quality control unit for controlling water quality, the water outlet of the water quality control unit is connected to the temperature control pipe of the temperature control unit; a temperature control unit for controlling the temperature of the water coming from the water outlet pipe, the temperature control pipe of the temperature control unit is connected to the resin radiation test unit; and a resin radiation test unit, the water inlet of the resin radiation test unit is connected to the water outlet pipe of the temperature control unit; the water outlet of the resin radiation test unit is connected to the water inlet pipe of the water quality control unit. The embodiment of the present invention realizes the comprehensive performance test of multiple physical fields such as water quality, temperature and radiation of nuclear-grade resin.

A ceramic scintillator of an embodiment includes a sintered body of a gadolinium oxysulfide phosphor containing praseodymium as a main activator. When a body color of the sintered body is represented by chromaticity coordinates (x, y) based on a CIE1931 chromaticity value, the sintered body has a body color satisfying 0.4≤x≤0.505 . . . (1) and 0.83x+0.075≤y≤0.83x+0.095 . . . (2). The ceramic scintillator of the embodiment is obtained by a method for manufacturing a ceramic scintillator, the method including a heat treatment step of causing a reaction gas containing oxygen and sulfur to react with the sintered body. A heat treatment time in the heat treatment step is 1 hour or more and 50 hours or less.

The invention discloses a coaxial connector and an intermodulation test method, and belongs to the field of communication circuits. The coaxial connector comprises a connector body, a shell and a cover body, wherein the connector body is of a hollow structure; the connector body penetrates through the shell, the shell is provided with a peeping hole communicated with the connector body, and the peeping hole is used for inserting a near-field probe; the cover body is detachably connected with the peeping hole, and the cover body, the connector body and the shell jointly define a shielding cavity. According to the invention, the method can achieve the inter-modulation test of the coaxial connector through employing a near-field radiation test method, can quickly and accurately locate an area with the prominent inter-modulation in the coaxial connector, does not need to dismount the coaxial connector for the inter-modulation test, does not need to shut down a communication link of a mobile communication system, does not need to stop the service, reduces the maintenance difficulty, and improves the efficiency. And the influence range during maintenance is reduced.

The invention relates to the technical field of radiation testing, in particular to an ash content detection system which comprises an in-furnace weighing assembly and a firing furnace, the firing furnace is installed on a construction detection base plane, and a sample detection table and a feeding transmission assembly are arranged on the two sides of the firing furnace respectively. A detection end processing mechanism is mounted between the sample detection table and the firing furnace, a temperature testing assembly is mounted between the detection end processing mechanism and the sample detection table, and a first-stage firing detection assembly and a second-stage non-inductive ash content detection assembly are arranged at one end of the feeding transmission assembly; secondary approval detection is completed by the primary burning detection assembly and the secondary non-inductive ash content detection assembly, abnormal data error correction and internal cross validation are realized, detection deviation caused by non-representative data of coal samples is avoided, accidental errors caused by reasons such as equipment abnormity and unevenness of the coal samples in single-time detection are effectively identified, and the detection accuracy is improved. And the reliability of a detection result is obviously improved.

The invention provides a charged particle bundling device for aerospace product radiation simulation and a manufacturing method. The charged particle bundling device comprises an axis closing cavity, a deflection magnet assembly and a magnetic field detection and control system. The axis combining cavity is of a three-way structure and comprises an electron beam pipeline and a proton beam pipeline; the deflection magnet assembly comprises side magnet yokes, magnet yokes and magnetic poles, the magnetic poles are connected with the inner sides of the upper magnet yoke and the lower magnet yoke respectively, and the three-way convergence part of the shaft combining cavity is located between the upper magnetic pole and the lower magnetic pole. The magnetic field detection and control system comprises an excitation coil, a Hall magnetic field detector, an excitation power supply and a display control device; the excitation coil is wound on the side magnet yoke and is connected with an excitation power supply; and the Hall magnetic field detector is positioned in the cavity between the upper magnetic pole and the lower magnetic pole and is connected with the out-of-cavity display control device through an electric connector. Through the three-way structure design of the axis closing cavity, the proton beam and the electron beam can be effectively subjected to axis closing, and the requirement that a sample irradiates two kinds of particle beams at the same time in a comprehensive radiation test is met.

The invention relates to a low-frequency high-electric-field radiation testing device, system and method, and the device comprises an input end which is used for transmitting an electromagnetic signal; the load end is used for receiving an electromagnetic signal; the bracket is arranged between the input end and the load end; two ends of the transmission line group are respectively connected with the input end and the load end, the middle part of the transmission line group is erected on the bracket, and the transmission line group is used for generating an electromagnetic field below when an electromagnetic signal is introduced and taking the electromagnetic field as a test area; the transmission line group is provided with a plurality of transmission lines, one end of each transmission line is radially erected on the support with the input end or the load end as the center, and the middle of each transmission line is erected on the same horizontal plane at a preset interval. According to the low-frequency high-electric-field radiation testing device, system and method provided by the invention, the problems of non-uniform field intensity, low test efficiency and high cost of a traditional antenna radiation mode in an HIRF test can be solved, a more uniform radiation field is realized, the test efficiency is improved, and the test cost is reduced.

The utility model belongs to the field of light radiation test technology especially relates to radiation test system, including work table, rotary table, clamping mechanism, support column, lifting mechanism, test antenna, be equipped with rotatable rotary table on work table, the centre of rotary table is equipped with positioning hole, rotary table still is equipped with clamping mechanism, is used for clamping the lamp to be measured, makes the lamp to be measured axis perpendicular to positioning hole axis, work table one side is equipped with support column, be equipped with lifting mechanism on support column, the lifting end of lifting mechanism is connected with an installation frame, and test antenna is installed on the installation frame, makes test antenna towards clamping mechanism. Adjust the ground clearance of test antenna through lifting mechanism, can ensure that the light emitting surface center of lamp to be measured and test antenna keep the same horizontal plane, improve the precision of radiation detection. Then rotate rotary table again, adjust the light emitting angle of lamp and the height of lifting test antenna, capture the maximum radiation value of lamp space distribution, ensure the accuracy of test, reduce the detection blind area.

The embodiment of the utility model discloses an electromagnetic radiation test positioning instrument. The electromagnetic radiation test locator comprises a probe TMIC, an input interface, a coupling capacitor C1, a coupling capacitor C5, a resistor R1, a power supply DC, a filter BL1, a volume adjusting potentiometer RW1, an amplification chip IC1, an output load horn RL, a power supply chip IC2 and a power supply switch K1. According to the implementation mode, the squeal problem is solved in circuit design, zero noise in a static state can be achieved, the circuit design is reasonable, the power time is long, charging is achieved, in addition, the volume can be conveniently adjusted, power is lasting, and universality is high.

The invention relates to the technical field of power supply radiation testing, in particular to a power supply on-line conduction and radiation integrated testing system and method, and the system comprises a testing case, and a spectrum analyzer, an artificial network and an isolation power supply which are disposed in the testing case. The industrial control computer is in communication connection with the test case, and the industrial control computer is loaded with a system program for controlling a test process and analyzing data; the test unit is connected with the test case through a radio frequency transmission line and comprises a desktop shielding box, a test jig arranged in the desktop shielding box and a radio frequency current probe used for detecting radiation signals; wherein the system program can control the frequency spectrum analyzer to switch working modes so as to carry out conduction disturbance test or radiation disturbance test on a tested power supply arranged on the test fixture. According to the invention, integration and automation of testing are realized.

The invention provides a radiation test method and a radiation test system. The method comprises the following steps: acquiring first radiation power under a test frequency band; the first radiation power is the radiation power measured by the signal measurement assembly when the to-be-tested equipment is in a working state and the signal generation assembly is in a closed state, and the multiple frequencies in the test frequency band comprise the working frequency of the to-be-tested equipment; acquiring second radiation power under the test frequency band; the second radiation power is the radiation power measured by the signal measurement assembly when the to-be-measured equipment is in a closed state and the signal generation assembly is in a working state; determining the target transmitting power of the signal generation component when the second radiation power corresponding to each frequency in the test frequency band is equal to the first radiation power; and determining third radiation power of the to-be-tested equipment in the test frequency band based on the target transmitting power.

The invention relates to a pollution radiation test method for a high-energy photon reference radiation field, and the method comprises the steps: constructing a detector physical model of high-energy photons based on a Monte Carlo method; obtaining a measurement spectrum at a high-energy photon radiation substance calibration point through a detector physical model; calculating the measurement spectrum through a G function to obtain a high-energy photon dose rate value; simulating an HpGe detector detection efficiency curve within the energy range of 8MeV in the detector physical model to obtain a low-energy photon dose rate value; based on Co-60 isotope energy calibration, determining an electron dose rate value through an extrapolation ionization chamber; neutron isotopes are set, and a neutron dose rate value is obtained based on a long counter; and determining a dose ratio based on the dose rate value. The technical effect of obtaining the dose ratio of the high-energy photon dose rate value, the low-energy photon dose rate value, the electron dose rate value and the neutron dose rate value is achieved.

This application discloses an RF shielding device and its design method for pod testing, belonging to the technical field of pod testing. The RF shielding device includes: a shielding shell with a pod interface on its side wall, through which the pod antenna radome enters the shielding shell; an absorbing layer disposed on the inner wall of the shielding shell for absorbing the RF signal output by the pod and interference signals from outside the shielding shell; a test antenna disposed within the shielding shell for receiving the RF signal; and an RF interface disposed on the side wall of the shielding shell, connected to the test antenna for connecting to pod testing equipment. Compared to traditional anechoic chambers, this provides a convenient and safe radiation testing environment for pods, thus reducing the difficulty of pod radiation testing.

The utility model discloses a radiation test tool and system, and the tool comprises a shielding structure body and a circuit board with a communication interface. The shielding structure body is provided with a shielding cavity, and the circuit board is arranged in the shielding cavity. And the shielding structure body is also provided with a connecting port communicated with the shielding cavity. The shielding cavity is used for containing an optical module, the optical module is provided with an optical fiber interface and an electric signal interface electrically connected with the communication interface, the shielding cavity is used for containing the optical module, and the optical fiber interface penetrates through the connecting port so that at least part of the optical fiber interface can be located outside the shielding cavity. According to the scheme of the embodiment of the invention, the repeatability and traceability of the electromagnetic radiation test of the optical module can be improved.

This invention discloses a method for hazard assessment of the ship deck fuel handling environment, comprising: constructing a first-type test facility based on the ship deck fuel handling environment; conducting multi-level tests on the first-type test facility under different radiation conditions, different radiation times, and fuel vapor ignition at different test temperatures to obtain first-type test results; improving the first-type test facility to obtain a second-type test facility; controlling the test temperature in the second-type test facility to the highest temperature of the first-type test results and then starting radiation testing according to a preset frequency and power to obtain second-type test results; and conducting a hazard assessment of the ship deck fuel handling environment based on the first-type and second-type test results to obtain an assessment result. This invention enables a comprehensive assessment of the hazards of the ship deck fuel handling environment. The method not only improves the accuracy of the assessment but also provides a scientific basis for developing corresponding safety measures and operating procedures.

The present application relates to the technical field of radiation measurement with ionization chamber, and particularly relates to a radiation test method and system for a medical cyclotron. The present application firstly analyzes the change characteristics of the output current curve under the condition of the change of the polarization voltage, evaluates the saturation voltage probability coefficient of the output current curve segment corresponding to the ideal polarization voltage, then combines the ionization interference factors such as the ionization chamber environment and the change of the beam intensity of the particle beam, evaluates the radiation confidence of each output current accurately reflecting the radiation intensity, then screens and corrects the to-be-corrected current, obtains the ideal output current correction curve, and further improves the radiation test accuracy of the medical cyclotron.

The invention relates to an ice area environment double-layer shell three-dimensional acoustic elastic model test verification method. The method comprises the following steps: S1, constructing a double-layer shell ring rib cylindrical shell model assembly; s2, a sensor assembly is arranged on each double-layer shell ring rib cylindrical shell model; s3, performing a dry mode test on each double-layer shell ring rib cylindrical shell model, and obtaining test data in the dry mode test through a sensor assembly; and S4, each double-layer shell ring rib cylindrical shell model is put down into an ice layer water area, and a hydrophone assembly is arranged underwater, so that each double-layer shell ring rib cylindrical shell model is subjected to an underwater sound radiation test in an ice area environment, and test data in the underwater sound radiation test are obtained through the hydrophone assembly. The underwater acoustic radiation test in the ice area environment can be carried out on the double-layer shell three-dimensional acoustic elasticity model, and powerful experimental support and data support are provided for three-dimensional acoustic elasticity theoretical analysis of a double-basin coupling ship with an acoustic covering layer laid in the ice area environment.

The invention discloses a rotatable sample support capable of being used for in-situ synchrotron radiation soft X-ray testing, and relates to the technical field of synchrotron radiation testing. The sample support is used for solving the problems that an existing sample support is tedious in angle rotation step in a synchrotron radiation soft X-ray test, and independent rotation of a plurality of samples cannot be achieved. The sample support comprises a sample support body, a sample support bearing piece and a sample bracket. The sample bracket is provided with a screw hole and can be fixed on a sample rack for synchrotron radiation testing, the sample support is connected to the sample support bearing part through the rotatable mechanism, the sample support bearing part is fixed in a groove of the sample bracket, and the sample bracket is fixed on the sample rack through the screw hole. 0-360-degree independent angle adjustment of a single sample is realized through the rotatable mechanism, and the whole sample holder does not need to be rotated, so that the test flow is prevented from being interrupted; a plurality of sample brackets can be simultaneously mounted on the sample rack, so that independent corner testing of a plurality of samples in the synchrotron radiation sample rack is realized. The test efficiency and the data reliability are improved, and the universality is high.

The invention discloses a radiation detection device and a detection method thereof, and belongs to the field of radiation testing. Comprising a detection main body, one side surface of which forms a probe for detecting radiation conditions; a protective tube; the air pump structure is provided with an air outlet connected with the protection pipe and an air inlet communicated with the external environment; the filtering structure is arranged at the air inlet, so that the air entering the protection pipe is low-radiation or non-radiation clean air; the pressure relief structure is arranged on one side, far away from the detection main body, of the protection tube; and the sealing structure is arranged at the end part, far away from the detection main body, of the protection tube and forms a flexible or elastic sealing part. The detection device has the beneficial effects that the protection tube is filled with filtered low-radiation or non-radiation clean air through the air pump structure, and the protection tube abuts against the to-be-detected object to form a closed or semi-closed space during detection, so that dust and impurities in the protection tube are remarkably reduced, and radiation dust is prevented from interfering with a detection result.

The invention relates to a large beam monitoring device capable of being used under vacuum and high and low temperature conditions, which comprises a spherical vacuum chamber, an electron accelerator beam outlet is connected with the spherical vacuum chamber, a collector is arranged in the spherical vacuum chamber, positive high pressure is applied to the collector, and the outer wall of the spherical vacuum chamber is grounded. An electron beam of the accelerator drifts towards the collector and forms a current signal, the collector is connected with an electrometer outside the spherical vacuum chamber through a cable interface, and the spherical vacuum chamber is further provided with a temperature adjusting device. According to the invention, the influence of geometric asymmetry on electric field distribution is eliminated through the spherical symmetric design, and the measurement uniformity under a large irradiation area is improved; a titanium alloy shell and a multi-layer vacuum sealing structure are adopted, the long-term stability under extreme temperature and high vacuum conditions is ensured, and therefore a high-reliability monitoring tool is provided for spacecraft anti-radiation testing.

The present invention belongs to the field of special robots, and provides a measurement and control platform for a robot joint module in a radiation environment. The measurement and control platform includes a radiation test chamber, a personnel test chamber, a charged irradiation test group, a non-charged irradiation test group, a charged non-irradiation test group, and a measurement and control module. The radiation test chamber is provided with a radiation source, a charged irradiation test group, and a non-charged irradiation test group, and each test group includes a joint module to be tested. The personnel test chamber is provided with a charged non-irradiation test group and a measurement and control module. The measurement and control module includes a parameter management module, a status monitoring module, a parameter performance analysis module, and a data storage module, which are used to realize the functions of remote control, data acquisition, data processing and analysis, and data storage of the test parameters of the joint module to be tested. In the present invention, the charged non-irradiation test group serves as the original data, and the test parameters of the other two groups are compared with those of the charged non-irradiation test group. The charged non-irradiation test group completes measurement and control in the personnel test chamber.