Dosimetric response of tooth enamel to 14 Mev neutrons

被引：5
|
作者：
Fattibene, P
Angelone, M
De Coste, V
Pillon, M
机构：
[1] Ist Super Sanita, I-00162 Rome, Italy
[2] Assoc EURATOM ENEA Fus, Ctr Ric Frascati, I-00044 Frascati, Italy
来源：
RADIATION AND ENVIRONMENTAL BIOPHYSICS | 2004年 / 43卷 / 02期
关键词：
D O I：
10.1007/s00411-004-0237-8
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The electron paramagnetic resonance (EPR) response of tooth enamel in a monenergetic neutron beam of 14 MeV was studied, with the aim to evaluate the relative neutron to Co-60 sensitivity. Three samples of tooth enamel powder were irradiated in air. A whole tooth and a powdered sample were irradiated in a geometrical PMMA phantom, in order to simulate the real exposure of a tooth inside a human head. The measured dose in enamel was compared to the dose calculated by Monte Carlo simulation. The relative neutron to Co-60 sensitivity using different reference materials (air, water and enamel) was evaluated as well. Large differences in sensitivity values were found depending on the reference material: the obtained relative neutron to Co-60 sensitivity was 0.47+/-0.09 for enamel and 0.15+/-0.03 for water. A comparison with results in fast neutron fields is reported.
引用
收藏
页码：85 / 90
页数：6
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