Dosimetry study and radiation effects for the residents near Semipalatinsk nuclear test site

从1995年起，我们一直在研究塞米巴拉金斯克核试验场附近的人们受到的辐射影响，因为在1994年和2002年，我们的机构进行了两次重组。本研究于1994年提出，并于2002年作为主要研究课题之一。暴露的特征是1。包括外部和内部暴露，2.高剂量水平，例如1戈伊外部在多隆和3.低剂量率暴露从几周到几个月。在这项研究中，我们已经连续进行了铯和钚污染的土壤和人体组织的测量。使用牙齿和砖样进行了外照射剂量估算的测量和准备。从这些测量中，我们发现在多隆约1Gy的曝光。我们继续检查甲状腺，其激素水平和染色体畸变。此外，我们正在解决个人剂量评估技术的技术问题。2002年10月，我们在塞米巴拉金斯克举行了国际剂量学专题讨论会。组织者是塞米巴拉金斯克医学院和放射医学和生态研究所，我们小组是专题讨论会的领导者。在这次研讨会上，我们提出开始国际合作，以解决不同方法评估剂量的差异，并获得批准。这一点非常重要，因为我们的最终目的是从本研究中获得辐射风险。因此，剂量测定的差异直接对应于所评价的风险。

From 1995 we have been studied radiation effects for the people near Semipalatinsk nuclear test site, because in 1994 and 2002 our institution was reorganized twice. This study have been raised in 1994 and accepted for further study as one of the main subjects in 2002. The characteristics of the exposure are 1. include both external and internal exposure, 2. high dose levels for example 1 Gy external in Dolon and 3. low dose rate exposure from a few weeks to a few months. In this study we have been continuously performed cesium and plutonium contamination measurements for soil and human tissues. Measurement and preparation of external dose estimation using tooth and brick samples were performed. From these measurements we found in Dolon about 1Gy of exposure. We continued the examination of thyroid, its hormone level and chromosome aberration. Also we are solving technical problems for the personal dose evaluation technique. In October 2002, we held the international dosimetry symposium at Semipalatinsk. Organizers are the Medical Academy ,in Semipalatinsk and Institute for radiation medicine and ecology, and our group leads the symposium. At the symposium we proposed to begin international collaboration to solve the difference of the evaluated doses by different method and that was approved. This is very important since our final purpose is to obtain radiation risks from this study. Therefore the differences of the dosimetry correspond directly those of the evaluated risks.