Electron spin resonance (ESR) dose measurement in bone of Hiroshima A-bomb victim

被引:12
|
作者
Kinoshita, Angela [1 ,2 ]
Baffa, Oswaldo [1 ]
Mascarenhas, Sergio [3 ]
机构
[1] Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Preto, Dept Fis, Ribeirao Preto, SP, Brazil
[2] Univ Sagrado Coracao, Pro Reitoria Pesquisa Posgrad, Sao Paulo, Brazil
[3] Univ Sao Paulo, Inst Fis Sao Carlos, Sao Carlos, SP, Brazil
来源
PLOS ONE | 2018年 / 13卷 / 02期
关键词
EPR-DOSIMETRY; TOOTH ENAMEL; RADIATION-DOSIMETRY; THERMOLUMINESCENCE; RECONSTRUCTION;
D O I
10.1371/journal.pone.0192444
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Explosion of the bombs in Hiroshima and Nagasaki corresponds to the only historical moment when atomic bombs were used against civilians. This event triggered countless investigations into the effects and dosimetry of ionizing radiation. However, none of the investigations has used the victims' bones as dosimeter. Here, we assess samples of bones obtained from fatal victims of the explosion by Electron Spin Resonance (ESR). In 1973, one of the authors of the present study (SM) traveled to Japan and conducted a preliminary experiment on the victims' bone samples. The idea was to use the paramagnetism induced in bone after irradiation to measure the radiation dose. Technological advances involved in the construction of spectrometers, better knowledge of the paramagnetic center, and improvement in signal processing techniques have allowed us to resume the investigation. We obtained a reconstructed dose of 9.46 +/- 3.4 Gy from the jawbone, which was compatible with the dose distribution in different locations as measured in non-biological materials such as wall bricks and roof tiles.
引用
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页数:11
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