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GB 15208.4-2018 English PDF

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GB 15208.4-2018: Micro-dose X-ray security inspection system -- Part 4: Human body security inspection system
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GB 15208.4-2018	599	Add to Cart	5 days	Micro-dose X-ray security inspection system -- Part 4: Human body security inspection system	Valid

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Basic data

Standard ID: GB 15208.4-2018 (GB15208.4-2018)
Description (Translated English): Micro-dose X-ray security inspection system -- Part 4: Human body security inspection system
Sector / Industry: National Standard
Classification of Chinese Standard: A91
Classification of International Standard: 13.310
Word Count Estimation: 30,381
Date of Issue: 2018-11-19
Date of Implementation: 2019-12-01
Regulation (derived from): National Standard Announcement No. 15 of 2018
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB 15208.4-2018: Micro-dose X-ray security inspection system -- Part 4: Human body security inspection system

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Micro-dose X-ray security inspection system--Part 4. Human body security inspection system ICS 13.310 A91 National Standards of People's Republic of China Micro-dose X-ray safety inspection equipment Part 4. Human safety inspection equipment Part 4. Humanbodysecurityinspectionsystem Published on.2018-11-19 2019-12-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Equipment Category 2 5 General technical requirements 3 6 Test method 5 7 Inspection rules 8 8 Packaging, labeling, storage and transportation 9 9 random technical documents 9 Appendix A (informative) Test Evaluation Record Table 10 Appendix B (Normative Appendix) Test Body 11 Appendix C (Normative) Requirements for Dose Detection Instruments and Test Scatterers 22 Appendix D (Normative Appendix) Test Method for Dose of Subjects to be Inspected 23 Appendix E (Normative) Radiation workplace radiation level test scatterers and test methods 25 Reference 27

Foreword

All technical content in this section is mandatory. GB 15208 "Micro Dose X-ray Safety Inspection Equipment" is divided into the following five parts. --- Part 1. General technical requirements; --- Part 2. Transmissive bag security inspection equipment; --- Part 3. Transmissive cargo safety inspection equipment; --- Part 4. Human body safety inspection equipment; --- Part 5. Backscattering items safety inspection equipment. This part is the fourth part of GB 15208. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part is proposed and managed by the Ministry of Public Security of the People's Republic of China. This section drafted by. Ministry of Public Security First Institute, Beijing Zhongduan Anmin Analysis Technology Co., Ltd., Tongfang Weishi Technology Co., Ltd. Division, National Security and Alarm System Product Quality Supervision and Inspection Center (Beijing), National Security and Alarm System Product Quality Supervision and Inspection Xin (Shanghai), Shenzhen Institute of Metrology and Quality Inspection, Shenzhen Liming Qingqing Image Technology Co., Ltd. The main drafters of this section. Yang Xiaoyue, Chen Xueliang, Zhao Lei, Xing Yu, Zhao Nai, Lu Peng, Liu Caixia, Zhou Yingchun, Shi Zhibo, Deng Yanli, Tao Lei. Micro-dose X-ray safety inspection equipment Part 4. Human safety inspection equipment

1 Scope

This part of GB 15208 specifies the classification, general technical requirements, test methods, inspection rules, packaging, and marking of human safety inspection equipment. Awareness, storage and transportation, and random technical documentation. This section applies to the design, manufacture, assembly, acceptance and use of various human safety inspection equipment. This section does not apply to X-ray safety inspection equipment for computed tomography (CT).

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 308.1-2013 Rolling ball - Part 1. Steel ball GB 15208.1-2018 Micro-dose X-ray safety inspection equipment - Part 1. General technical requirements GB 15208.2-2018 Micro-dose X-ray safety inspection equipment - Part 2

3 Terms and definitions

The following terms and definitions defined in GB 15208.1-2018 and GB 15208.2-2018 apply to this document. 3.1 Human body background material detection force materialdetectiononhumanbody The ability of the device to resolve the thickness of high density polyethylene wafers in the context of high density polyethylene. Note. Generally, it is expressed by the thickness (mm) of a high-density polyethylene wafer. 3.2 Air background material detection force materialdetectioninair The ability of the device to resolve the thickness of the comb test object in the air background. Note. Generally, the tooth thickness (mm) of the comb test object is expressed. 3.3 Body line resolution wiredetectiononhumanbody The device resolves the ability of a single solid copper coil wire diameter in the context of high density polyethylene. Note. Generally indicated by the nominal diameter (mm) of the wire. 3.4 Spatial resolution of the spatial resolutiononhumanbody The ability of the device to resolve the diameter of steel balls in the context of high density polyethylene. Note. Generally, it is expressed by the diameter (mm) of the steel ball. 3.5 Micro-dose X-ray human body safety inspection equipment micro-doseX-rayhumanbodysecurityinspectionsystem A micro-dose X-ray safety inspection device for inspecting humans carrying dangerous goods or contraband. 3.6 Transmissive micro-dose X-ray human body safety inspection equipment transmissionmicro-doseX-rayhumanbodysecurityin- Spectionsystem A transmissive micro-dose X-ray safety inspection device for inspecting humans carrying dangerous goods and contraband. 3.7 Backscatter X-ray backscatterX-ray Scattered X-rays greater than 90° with respect to incident X-rays. 3.8 Backscatter micro-dose X-ray human body safety inspection equipment backscattermicro-doseX-rayhumanbodysecurityin- Spectionsystem A backscattering micro-dose X-ray human body safety inspection device for inspecting humans carrying dangerous goods and contraband. 3.9 Open micro-dose X-ray human body safety inspection equipment unshieldedmicro-doseX-rayhumanbodysecurityinspec- Tionsystem An open micro-dose X-ray safety inspection device for inspecting humans carrying dangerous goods and contraband. 3.10 Closed micro-dose X-ray human body safety inspection equipment shieldedmicro-doseX-rayhumanbodysecurity Inspection system A closed micro-dose X-ray safety inspection device for inspecting humans carrying dangerous goods or contraband. 3.11 General mode generalmode A working mode for initial safety checks on certain groups of people. 3.12 Special mode specialmode A mode of work used to perform security checks on specific populations. 3.13 Radiation workplace radiationworkplace The collective name of the control area and the supervision area. 3.14 Scan scan The operation of obtaining an image by X-ray sweeping through the human body. 3.15 Check screening The sum of all the scans required to display the results of imaging the various faces of the human body. 3.16 Reference location The location where the test body is required to be placed when testing device image metrics. 3.17 Single check time timeperinspection The time from when the operator issues an instruction until the image is displayed.

4 Equipment classification

4.1 Micro-dose X-ray human body safety inspection equipment (hereinafter referred to as equipment) is divided into. according to technical characteristics. a) transmissive equipment; b) backscattering equipment; c) Transmissive, backscatter combined equipment. 4.2 Equipment is divided according to material resolution. a) single energy spectrum equipment; b) Multi-spectral spectrum equipment. 4.3 Equipment is classified according to the type of protection. a) open equipment; b) Closed equipment.

5 General technical requirements

5.1 Performance Specifications 5.1.1 Human body background material detection force It should be able to distinguish the thickness of the thinnest wafer by 5mm. 5.1.2 Air background material detection force Should be able to distinguish the minimum high-density polyethylene sawtooth thickness of 3mm; should be able to distinguish the minimum stainless steel (SST-304) sawtooth thickness is 1.6mm. 5.1.3 Body line resolution It should be able to distinguish the minimum single solid copper coil with a wire diameter of 0.511mm. 5.1.4 Volume resolution It should be able to distinguish the smallest steel ball with a diameter of 6mm. 5.1.5 Organic matter resolution (for transmissive multi-energy spectrum equipment) It should be able to distinguish the organic ladder with a thickness of 1mm~120mm and give orange with different saturation. 5.1.6 Mixture resolution (for transmissive multi-energy spectrum equipment) It should be able to distinguish the aluminum step of the alloy with a thickness of 1mm~60mm and give green with different saturation. 5.1.7 Grayscale resolution (for transmissive single-energy spectrum equipment) It should be able to distinguish the aluminum step of the alloy with a thickness of 1mm~60mm and a thickness difference of not less than 1mm. 5.1.8 Inorganic resolution (for transmissive multi-energy spectrum equipment) It should be able to distinguish steel steps with a thickness of 0.2mm~14mm and give blue with different saturation. 5.1.9 Single inspection time Should be less than 15s. 5.2 Radiation and environmental safety indicators 5.2.1 Dose of the subject The surrounding dose equivalent H*(10) or personal dose equivalent Hp(10) of the position of the test subject caused by a general mode check shall be Not more than 0.5μSv. The surrounding dose equivalent H*(10) or individual dose equivalent Hp(10) of the position of the test object caused by a special inspection mode check shall be No more than 5μSv. 5.2.2 Radiation level of radiation workplace When the equipment is in operation, a control zone should be placed around it, and the ambient dose equivalent of the control zone boundary should not exceed 20 μSv per hour. When the equipment is in operation, a supervision area should be set around it, and the public and the personnel to be inspected are prohibited from entering the area. Accumulated hourly boundaries The surrounding dose equivalent should not exceed 2.5 μSv. The position of the operator, the cumulative daily dose equivalent per hour should not exceed 0.5 μSv. When the equipment is installed and commissioned, it should be tested at the workplace radiation dose level before being put into operation, according to different regions and locations. The dose level requires that the control area, supervision area, and equipment operator position be drawn. 5.2.3 Equipment noise Should comply with the provisions of 5.2.3 of GB 15208.1-2018. 5.3 Operating environment 5.3.1 Working environment conditions Should comply with the provisions of 5.3.1 of GB 15208.1-2018. 5.3.2 Power Adaptability Should comply with the provisions of 5.3.2 of GB 15208.1-2018. 5.4 Security performance It shall comply with the provisions of 5.4 of GB 15208.1-2018 [except single-energy spectrum equipment 5.4.1g)]. 5.5 Mechanical structure Should comply with the provisions of 5.5 of GB 15208.1-2018. 5.6 Electromagnetic compatibility Should comply with the provisions of 5.6 of GB 15208.1-2018. 5.7 Anti-shock Should comply with the provisions of 5.7 of GB 15208.1-2018. 5.8 Anti-mechanical danger Should comply with the provisions of 5.8 of GB 15208.1-2018. 5.9 Preventing the spread of flame Should comply with the provisions of 5.9 of GB 15208.1-2018. 5.10 Temperature limits and heat resistance Should comply with the provisions of 5.10 of GB 15208.1-2018. 5.11 Environmental adaptability Should comply with the provisions of 5.11 of GB 15208.1-2018. 5.12 Functional requirements 5.12.1 Human-computer interaction function Should comply with the provisions of 5.12.1 of GB 15208.1-2018. 5.12.2 Image display function Should comply with the provisions of 5.12.2a) of GB 15208.1-2018. 5.12.3 Image Processing Function Should comply with the provisions of 5.12.3 of GB 15208.1-2018. 5.12.4 Device Diagnostics Should comply with the provisions of 5.12.5 of GB 15208.1-2018.

6 Test methods

6.1 Environmental requirements Should comply with the provisions of 6.1 of GB 15208.1-2018, and record the ambient temperature, relative humidity and atmospheric pressure (see Appendix A Table A.1). 6.2 Main instruments and tools for testing Should comply with the provisions of 6.2.3 and 6.2.4 of GB 15208.1-2018. Test body. See Appendix B. Main instruments and tools for dose testing of the tested object. See C.1 in Appendix C. Main instruments and tools for radiation level dose testing in radiation workplaces. see C.2. Radiation level test scatterers for radiation workplaces. see C.3. 6.3 Performance Indicator Test 6.3.1 Overview The equipment should scan the object to be inspected in a standard operating procedure and working mode. Hardware settings, software settings, and image processing methods during testing Parameters such as the dose of the subject to be tested should be recorded in the test documentation (see Table A.2). When testing the device image index, the test body should be placed in the reference position, as shown in Figure 1. The reference position is in the center of the detection area and stands at a distance The height of the platform is 1 m, and the distance between the test body and the beam exit of the X-ray generating device can be reasonably selected within the detection area. On the test body, the test card A face is facing the X-ray generating device, the B surface is close to the phantom (see Appendix B), and the X-ray passes through the test card and the body in turn. mold. Image processing is allowed to achieve the best evaluation results during device testing. Figure 1 Image indicator test reference position 6.3.2 Human body background material detection test The human body background material detection test card and the phantom are combined into a test body and placed at a reference position to start and complete the scan. Judging knot Whether it meets the requirements of 5.1.1. 6.3.3 Air background material detection force test The air background material detection force test card and the phantom are combined into a test body and placed in a reference position to start and complete the scan. Judging knot Whether it meets the requirements of 5.1.2. 6.3.4 Body line resolution test The body line resolution test card and the phantom are combined into a test body and placed in a reference position to start and complete the scan. Whether the result of the judgment is Meet the requirements of 5.1.3. 6.3.5 Volumetric spatial resolution test Combine the body space resolution test card and the phantom into the test body and place it in the reference position to start and complete the scan. Whether the result of the judgment Meet the requirements of 5.1.4. 6.3.6 Organic matter discrimination test Put the test body B in Appendix A of GB 15208.2-2018 in the reference position, start and complete the scan, and visually test the test body B on the display. The X-ray image of the test card 5 and the test card 6 determines whether the result meets the requirements of 5.1.5. Note. If the adjacent steps of the organic ladder sample can be distinguished and can give orange to different saturations, the device can be considered to be distinguishable. 6.3.7 Mixture/Grayscale Resolution Test Place the test body B in Appendix A of GB 15208.2-2018 in the reference position, start and complete the scan, and visually test on the display. The X-ray image of the test card 7 in the body B determines whether the result meets the requirements of 5.1.6 and 5.1.7. Note. For transmissive single-energy spectroscopy equipment, equipment can be considered if the adjacent steps of the alloy aluminum step sample can be distinguished and can be given different gradations. Can distinguish; for transmissive multi-energy spectrum equipment, if the adjacent steps of the alloy aluminum step sample can be distinguished and can give different saturation green, Then the device can be considered to be distinguishable. 6.3.8 Inorganic resolution test Place the test body B in Appendix A of GB 15208.2-2018 in the reference position, start and complete the scan, and visually test on the display. The X-ray image of the test card 8 in the body B determines whether the result meets the requirements of 5.1.8. Note. If the adjacent steps of the steel step sample can be distinguished and can be given a different shade of blue, the device can be considered to be distinguishable. 6.3.9 Single inspection time test When testing the test body, use the stopwatch to record the time from the operator's command to the completion of the test, and determine whether the result meets the requirements of 5.1.9. Claim. 6.4 Radiation and environmental indicators test 6.4.1 Dose test of the tested subject Test the equipment according to the test method specified in D.2 of Appendix D, and determine whether the result meets the requirements of 5.2.1. 6.4.2 Radiation workplace radiation level test Test the equipment according to the test method specified in E.2 of Appendix E, and determine whether the result meets the requirements of 5.2.2. 6.4.3 Equipment noise test Test the equipment according to the test method specified in 6.3.3 of GB 15208.1-2018, and determine whether the result meets the requirements of 5.2.3. 6.5 Power supply range test Test the equipment according to the test method specified in 6.4 of GB 15208.1-2018, and determine whether the result meets the requirements of 5.3.2. 6.6 Safety performance test Test the equipment according to the test method specified in 6.5 of GB 15208.1-2018, and determine whether the result meets the requirements of 5.4. 6.7 Mechanical structure test Test the equipment according to the test method specified in 6.6 of GB 15208.1-2018, and determine whether the result meets the requirements of 5.5. 6.8 Electromagnetic Compatibility Test Test the equipment according to the test method specified in 6.7 of GB 15208.1-2018, and determine whether the result meets the requirements of 5.6. 6.9 Anti-shock test Test the equipment according to the test method specified in 6.8 of GB 15208.1-2018, and judge whether the result meets the requirements of 5.7. 6.10 Anti-mechanical danger test Test the equipment according to the test method specified in 6.9 of GB 15208.1-2018, and determine whether the result meets the requirements of 5.8. 6.11 Prevention of flame spread test The equipment shall be tested according to the test method specified in 6.10 of GB 15208.1-2018, and the result is judged to meet the requirements of 5.9. 6.12 Equipment temperature limits and heat resistance test Test the equipment according to the test method specified in 6.11 of GB 15208.1-2018, and determine whether the result meets the requirements of 5.10. 6.13 Environmental Adaptability Test Test the equipment according to the test method specified in 6.12 of GB 15208.1-2018, and determine whether the result meets the requirements of 5.11. 6.14 Functional requirements Follow the manufacturer's product instructions to determine if the results meet the requirements of 5.12.

7 Inspection rules

7.1 Inspection classification Should comply with the provisions of 7.1 of GB 15208.1-2018. 7.2 Type inspection Should comply with the provisions of 7.2 of GB 15208.1-2018. 7.3 Factory inspection Should comply with the provisions of 7.3 of GB 15208.1-2018. 7.4 Inspection items The inspection items are shown in Table 1. Table 1 Inspection item list Serial number project technical requirements test method type inspection factory inspection 1 Human body background material detection force 5.1.1 6.3.2 ● ● 2 Air background material detection force 5.1.2 6.3.3 ● ● ......

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