Establishment of Reference Radiation Field for 40~125kV Pulsed X-ray
ZHANG Xiao-le1,2,HUANG Jian-wei2,LI De-hong2,CHENG Jian-bo2, YANG Yang2,CAO Lei2,3,ZHAO Rui2
1. Lanzhou University, Lanzhou, Gansu 730000, China
2. National Institute of Metrology, Beijing 100029, China
3. Beijing Normal University, Beijing 100011, China
Abstract：To solve the problem of timing correction of pulsed X-ray dose monitoring instruments for X-ray diagnosis and security inspection, 40~125kV pulsed X-ray reference radiation field that simulates the above-mentioned radiation conditions has been established. The reference radiation field have both conventional radiation field characteristics and pulse radiation field characteristics. A high-voltage generator based on grid control technology can control the X ray tube to generate X-rays with different pulse characteristics. To measure the pulse characteristics of the generated X-rays (rising and falling time, exposure time, etc.), the pulse time module has been used, and the results show that the reference radiation field can be used for time response correction and dose traceability of active dose monitoring equipment.
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2021, Vol. 42 
