A. Tsyb Medical Radiological Research Center - Branch of the National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, Koroleva Str., 4., Obninsk, Kaluga Region 2490036, Russian Federation.
National Medical Research Radiological Center of the Ministry of Health of the Russian Federation, Koroleva Str., 4., Obninsk, Kaluga Region 2490036, Russian Federation.
J Radiat Res. 2022 Aug 13;63(Supplement_1):i54-i60. doi: 10.1093/jrr/rrac029.
The problem of differentiating between primary irradiation and exposure due to residual radioactivity following A-bombing (including beta-exposure), is the subject of special attention and discussions in order to understand the health effects following the Hiroshima and Nagasaki A-bombings, especially among newcomers to cities soon after the detonations. In this work, the method of single quartz grain luminescence retrospective dosimetry was applied for a retrospective estimation of the 'dose-depth' profile in a quartz-containing tile extracted from the building of former Hiroshima University (HU), which was a 'witness' of the Hiroshima atomic bombing on the 6 August 1945. It has been shown that results of retrospective estimates of the 'dose-depth' profile using the method of optically stimulated luminescence (OSL) from inclusions of quartz grains in very thin layers of the sample, in combination with the calculations of the 'dose-depth' profile using the Monte Carlo method, indicates the possible presence of beta irradiation of thin layers of the sample located near the surface of the tile facing the air, where there is no electronic equilibrium from gamma radiation.
为了了解广岛和长崎原子弹爆炸后的健康影响，特别是爆炸后不久进入城市的新人的影响，区分因原子弹爆炸后的剩余放射性（包括β辐射）引起的原发性照射和暴露的问题是特别关注和讨论的主题。在这项工作中，应用单石英颗粒发光回溯剂量测定法，对取自广岛大学（HU）前建筑物的含石英瓦片中的“剂量-深度”分布进行回溯估计，该建筑物是 1945 年 8 月 6 日广岛原子弹爆炸的“见证者”。结果表明，使用光激励发光（OSL）法从样品的非常薄层中的石英颗粒包裹体中回溯估计“剂量-深度”分布的结果，结合使用蒙特卡罗方法计算“剂量-深度”分布的结果，表明可能存在β辐射对瓦片朝向空气的表面附近的样品的薄层的辐照，而在那里不存在来自γ辐射的电子平衡。
