Thermoluminescence Dosimetry of Gamma Rays Using Ceramic Samples from Hiroshima and Nagasaki: A Comparison with DS86 Estimates A Review of Forty-Five Years Study of Hiroshima Atomic Bomb Survivors I. DOSIMETRY

TSUNETO NAGATOMO; YONETA ICHIKAWA; MASAHARU HOSHI

doi:10.1269/jrr.32.SUPPLEMENT_48

Thermoluminescence Dosimetry of Gamma Rays Using Ceramic Samples from Hiroshima and Nagasaki: A Comparison with DS86 Estimates

A Review of Forty-Five Years Study of Hiroshima Atomic Bomb Survivors I. DOSIMETRY

TSUNETO NAGATOMO, YONETA ICHIKAWA, MASAHARU HOSHI

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Keywords: Thermoluminescence dosimetry, Gamma rays, Hiroshima and Nagasaki, Atomic bomb

JOURNAL FREE ACCESS

1991 Volume 32 Issue SUPPLEMENT Pages 48-57

DOI https://doi.org/10.1269/jrr.32.SUPPLEMENT_48

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Abstract

This study reports gamma-ray doses measured using thermoluminescence (TL) dosimetry of atomic-bombexposed ceramic samples from Hiroshima and Nagasaki. Advances in the dosimetry of TL-sensitive minerals in the field of TL dating of archaeological and geological materials made it possible to measure a radiation dose of 10^-2 Gy. Ceramic samples such as tiles and bricks were collected from locations between 523 and 2, 453 m from the hypocenter in Hiroshima and from between 731 and 1, 565 m in Nagasaki. The gamma-ray dose estimates derived from these samples are compared with estimates from DS86. A significant discrepancy was noted between the doses measured for samples from Hiroshima and DS86 values. One possible cause of this discrepancy might be a secondary gamma-ray dose related to the neutron dose.

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