Ichikawa Y, Nagatomo T, Hoshi M, Kondo S
Health Phys. 1987 Apr;52(4):443-51. doi: 10.1097/00004032-198704000-00005.
Sixteen ornamental tile samples were collected from 1982 to 1983 from the rooftops of two buildings at Hiroshima University, Hiroshima, Japan. Quartz grains 50-150 microns in size extracted from the samples were analyzed for their thermoluminescence (TL) intensities. Conversion of TL intensity to 60Co gamma exposure resulted in the following estimates: 40.5 to 27.6 mC kg-1 (157 to 107 R) for five samples (one each) collected from five sites at distances of 1.27 to 1.34 km from the hypocenter of the atomic bomb detonated in 1945; 23.7 +/- 1.4 mC kg-1 (92 +/- 5 R) for three samples from one site at a distance of 1.39 km; 21.4 to 17.0 mC kg-1 (83 to 66 R) for three samples (one sample per site) from three sites at distances of 1.40 to 1.43 km; 19.8 +/- 1.3 mC kg-1 (77 +/- 5 R) for four samples from one site at a distance of 1.45 km; and 13.2 mC kg-1 (51 R) for one sample at a distance of 1.46 km. At face value, these estimates are greater by a factor of about 2.5 than previous estimates based on the tentative 1965 radiation dose estimates for atomic bomb survivors (a tentative dosimetry model proposed in 1965), but agree within +32% to -13% (+15% on the average) with recent estimates using modern computational techniques using an improved model of the atomic bomb explosion.
1982年至1983年期间，从日本广岛市广岛大学两座建筑的屋顶采集了16个装饰瓷砖样本。对从样本中提取的尺寸为50 - 150微米的石英颗粒进行了热释光（TL）强度分析。将TL强度转换为60Co伽马照射量后得到以下估计值：1945年原子弹爆炸震中距离1.27至1.34公里处五个地点采集的五个样本（每个地点一个），照射量为40.5至27.6 mC kg-1（157至107伦琴）；距离1.39公里处一个地点的三个样本，照射量为23.7±1.4 mC kg-1（92±5伦琴）；距离1.40至1.43公里处三个地点的三个样本（每个地点一个），照射量为21.4至17.0 mC kg-1（83至66伦琴）；距离1.45公里处一个地点的四个样本，照射量为19.8±1.3 mC kg-1（77±5伦琴）；距离1.46公里处一个样本，照射量为13.2 mC kg-1（51伦琴）。从表面值来看，这些估计值比基于1965年对原子弹幸存者的初步辐射剂量估计（1965年提出的初步剂量测定模型）的先前估计值大约高2.5倍，但与使用改进的原子弹爆炸模型的现代计算技术的最新估计值在+32%至 -13%（平均+15%）范围内相符。
