Proposal for Setting Guidance Levels on Entrance Surface Doses for Radiographic Examinations on Children in Japan

Takehiko Mori, Hiroe Mutoh, Hitoshi Satoh, Mitsuaki Hasegawa
2002 The Japanese journal of medical instrumentation  
The purpose of ・ this paper is to propose setting guidance levels on entrance surface dose for radiographic exa ' minations on children in Japan, This proposal is . ba3ed on the results of surveys conducted broadly on Japanese institutes . Each value of the entrance doses ( the l st quartile, median , the 3 rd quartile, and mean ) was calculated with the Numerical Dose Determination method ( NDD ) . The difference between the values of the l st quartile and the 3 rd quartile for each part of
more » ... 7 subject parts of examination ranges from 2, 7 times to 3. 7 times among institutions .
doi:10.4286/ikakikaigaku.72.2_65 fatcat:2fbm4xg7vrf5pcwjfhuedxm6dm