Ships need a lot of maintenance and repair work during their lifespan,and X-ray flaw detection is a common non-destructive detection method for ship maintenance and repair work.Taking the radiation protection de-sign and evaluation of the X-ray flaw detection room in an overseas shipyard upgrading project as an example,and by using the theoretical calculation of radiation protection of X-ray flaw detection room,operating room and the sur-rounding sensitive facility,the Monte Carlo simulation based on GEANT4 and the on-site survey,this paper ex-plained the design of X-ray flaw detection room and relevant radiation protection evaluation system on a technical perspective,demonstrated the capacity of relevant technical systems,improved the brand reputation in related fields,enhanced the potentially technical attraction to the final client and has a certain demonstration role on solving the problem on"going global"of national standards in relevant fields.
radiation protectionMonte Carlo methodX-ray flaw detectionstandard localizationGEANT4 software
NETL
NSTL
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