This standard specifies the radiation health protection technical requirements and testing requirements for X-ray baggage inspection systems and their use. This standard applies to cabinet X-ray systems for baggage inspection. This standard does not apply to portable small X-ray machines for baggage inspection and X-ray systems for large container security inspection. GB 17060-1997 Radiation Health Protection Standard for X-ray Baggage Inspection Systems GB17060-1997 Standard download decompression password: www.bzxz.net

GB 17060--1997
X-ray baggage inspection system is a device that uses ionizing radiation to conduct security inspections on baggage at airports, stations, customs and other places. Due to the possible harm of ionizing radiation to the public, when compiling this standard, the relevant contents of the US Federal Administrative Regulation 21CFR1020.40 were adopted in accordance with the equipment and its use in my country. This standard shall be implemented from December 1, 1998. Appendix A of this standard is the appendix of the standard.
This standard was proposed by the Ministry of Health of the People's Republic of China. The drafting unit of this standard: Institute of Radiation Medicine, Shandong Academy of Medical Sciences. The main drafters of this standard: Hou Jinpeng, Deng Daping, Zhu Jianguo, etc. This standard is interpreted by the Chinese Academy of Preventive Medicine, the technical management unit entrusted by the Ministry of Health. 187
1 Scope
National Standard of the People's Republic of China
Radiological protection standard for X-ray luggage inspection system
Radiological protection standard for X-ray luggage inspection system GB 17060-1997
This standard specifies the technical requirements for radiological protection and testing and inspection of X-ray luggage inspection system (hereinafter referred to as system) and its use.
This standard applies to cabinet X-ray systems for luggage inspection. This standard does not apply to portable small X-ray machines for luggage inspection and X-ray systems for large container security inspection. 2 Definitions
This standard adopts the following definitions.
2.1 Cabinet X-ray system A system with an X-ray tube installed in a cabinet, which is used to perform X-ray irradiation inspection on luggage entering the cabinet. When X-rays are generated, the system can not only shield radiation, but also prevent people from entering the cabinet. X-ray equipment that is temporarily or accidentally equipped with a portable protective shield (except for conversion) is not considered a cabinet X-ray system. 2.2 External surface external surface
The external surface of the cabinet X-ray system, including the high voltage generator, doors, covers, doors, control knobs and other permanently installed rigid devices, as well as the plane across any windows and access openings. 2.3 Access opening port
An opening on the external surface of the system that remains open during the X-ray emission, designed for the transfer of luggage bags into and out of the cabinet X-ray system for irradiation or for partial irradiation due to the size of the luggage bags that are difficult to enter the cabinet as a whole. 2.4 door
Any barrier designed to be removable or openable for normal operation, which can generally be opened without tools and allows access to the interior of the cabinet. Rigid devices installed on the door are also part of the door. 2.5 Access panel
Any barrier or panel designed to be removable or openable for repair or maintenance purposes, which can only be opened with the help of tools to enter the interior of the cabinet.
2.6 Ground fault
Accidental short circuit of conductor to ground.
2.7 Aperture
Any opening on the outer surface of the system, excluding the passage openings that remain open during X-ray emission. Approved by the State Bureau of Technical Supervision on November 11, 1997 188
Implementation on December 1, 1998
GB17060—1997
3 Technical requirements for radiation protection of X-ray baggage inspection system 3.1 When the system generates radiation, the air kerma rate at any point 5 cm away from its outer surface shall not exceed 5μGy·h-1. 3.2 The single-piece protective thickness of the lead-rubber curtain at the passage opening of the system shall not be less than 0.35mm lead equivalent. 3.3 Safety interlock of the system
3.3.1 Each door of the system requires at least two safety interlocks. When the door is opened, any one of the interlocks can cause the high voltage generator power supply line to be automatically disconnected. Except for the door, the movement of other parts will not cut off the current. 3.3.2 Each cover has at least one safety interlock. When the cover is removed and the safety interlock switch is activated, the system will not be able to generate X-rays. 3.3.3 After any safety interlock causes the X-ray to be interrupted, the controller must be used again to generate X-rays. 3.3.4 The failure of any independent component of the system should not cause more than one safety interlock to fail. 3.4 The ground fault will not cause the system to generate X-rays. 3.5 The power-on indicator light and the X-ray emission indicator light should be permanently installed on the top plate of the system. The system key opening controller should ensure that the system does not generate X-rays after the key is removed. 3.6
3.7 It should be ensured that the original design of the system safety is not modified or changed. 4 Radiation protection requirements in the use of X-ray baggage inspection system 4.1
When the system is working, no part of the body is allowed to enter the radiation beam through the channel opening and window. 4.2
In case of emergency during the use of the system, the emergency stop button should be pressed to stop the system. If the power-on indicator light and X-ray emission indicator light of the system are not working properly during the use of the system, the system should be stopped immediately for repair. 4.3
The safety interlock and electrical performance of the system should be regularly maintained and inspected to prevent accidents. 4.4
4.5The lead-rubber curtain at the entrance of the system channel should be kept intact, and the damaged lead curtain should be replaced in time. 4.6 When repairing the system, the power supply should be cut off first. After restoring the safety interlock, debug through the forced button. 5 Inspection and testing requirements for X-ray baggage inspection system 5.1 The inspection of the radiation control value of the system outer surface specified in 3.1 of this standard should be carried out when the door and cover are fully closed and fixed in place, and the voltage, current, beam direction and scattering conditions of the X-ray tube ensure that the X-ray radiation of the outer surface of the system in the operating state reaches the maximum, and the average measurement is carried out on the receiving area with a straight-line distance of no more than 5cm and a cross-section of no less than 10cm2. The plan view of the radiation measurement points on the outer surface of the system is shown in Appendix A (Appendix to the standard). The maximum value of the measurement results at each point is required to comply with the provisions of 3.1 of this standard. 5.2 When performing radiation detection on the system, an ionization chamber or cumulative dose meter method calibrated with a known energy response should be used for measurement. 5.3 The cut-off test of any safety interlock device of the system should comply with the provisions of 3.3 of this standard. 5.4 When testing the power switch of the system, the system should not generate X-rays when the power switch is cut off. 5.5 Newly designed and installed X-ray baggage inspection systems must undergo acceptance testing of their protective performance, and only those that pass the test can be issued a license. For unqualified equipment, it is allowed to be used only after modification and re-testing. 5.6 Routine testing of system radiation safety is conducted once a year. 189
Luggage exit
GB17060—1997
Appendix A
(Appendix to the standard)
Schematic diagram of radiation measurement points on the outer surface of the X-ray baggage inspection system 3
Luggage position when X-ray occurs
Luggage entrance
1,2,3—Reference position of measurement points
Figure A1 Schematic diagram of passenger passage side plan
Lead-rubber curtain at the passage entrancebzxz.net
1,2—Reference position of measurement points
Figure A2 Schematic diagram of luggage entrance side plan
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