Use of bubble detectors to measure neutron contamination of a medical accelerator photon beam

被引：25

作者：

Bourgois, L ^{[1
]}

Delacroix, D ^{[1
]}

Ostrowsky, A ^{[1
]}

机构：

[1] CEA Saclay, Commissariat Energie Atom Saclay, Serv Protect Rayonnements, SPR SRI GRAD, F-91191 Gif Sur Yvette, France

来源：

RADIATION PROTECTION DOSIMETRY | 1997年 / 74卷 / 04期

关键词：

D O I：

10.1093/oxfordjournals.rpd.a032203

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Medical electron accelerators generate spurious neutron radiations: in order to protect patients, neutron radiation levels must remain below internationally recommended values. In the present study, bubble detectors were used to measure the neutron component in the primary beam and outside the radiation field for 8,15, 18 and 25 MV photons from a Saturne 43F type medical accelerator. The results are compared with those obtained using other methods. Values of between 0.25 and 7.5 mSv.Gy(-1) were determined at the beam isocentre for photons of 8 to 25 MV; these values are in agreement with those published in the literature.

引用

页码：239 / 246

页数：8

共 14 条

[1] NEUTRON YIELDS FROM SELECTED MATERIALS IRRADIATED WITH HIGH-ENERGY PHOTONS [J].