ADLET : Absorbed dose and average LET determination with TLDs on the space station MIR during a Russian long-term flight
ADLET : Absorbed dose and average LET determination with TLDs on the space station MIR during a Russian long-term flight
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ADLET：俄罗斯长期飞行期间空间站 MIR 上使用 TLD 确定的吸收剂量和平均 LET
DOI：
10.1093/oxfordjournals.rpd.a031710
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
V. Shurshakov
中科院分区：
文献类型：
--
作者：
N. Vana;W. Schöner;M. Fugger;Y. Akatov;V. Shurshakov
为了确定复杂混合辐射场中的吸收剂量和等效剂量，利用热释光曲线中峰高比的变化开发了新方法。用于确定混合辐射场中平均 LET 的峰高比方法用于测量 MIR 空间站上的等效剂量。从 1994 年 1 月开始，在三个不同时期进行了测量。两个剂量计包暴露约 6 个月，直到 1994 年夏天（RLF 第 1 阶段），两个剂量计包暴露约 12 个月（RLF-2），两个包暴露约 18 个月（RLF-3）。在 MIR 空间站上，选择了两个不同的位置进行测量，一个具有相当低的屏蔽，另一个具有较重的屏蔽，以确定 MIR 空间站内吸收辐射的平均 LET 可能存在的差异。在 MIR 空间站的 182 天期间，测得的剂量率为 0.300 ± 0.004 mGy.d -1 （低屏蔽）和 0.204 ± 0.005 mGy.d -1 （重屏蔽）。 LET测定采用高温TL比值(HTR)法进行。结果将与俄罗斯同事获得的结果以及剂量计算进行比较。
For determination of the absorbed dose and the equivalent dose in complex mixed radiation fields, new methods were developed using the changes of peak height ratios in thermoluminescence glow curves. The peak height ratio method for determination of the average LET in mixed radiation fields was used for measurements of the equivalent dose on board the space station MIR. Measurements were carried out during three different periods starting in January 1994. Two dosemeter packets were exposed for about 6 months until summer 1994 (RLF phase 1), two packets for about 12 months (RLF-2) and two packets for about 18 months (RLF-3). On the space station MIR two different positions, one with rather low shielding and another with heavy shielding, were chosen for measurements in order to determine possible differences in the average LET of absorbed radiation within the space station MIR. During a period of 182 days on space station MIR the measured dose rate was 0.300 ± 0.004 mGy.d -1 (low shielding) and 0.204 ± 0.005 mGy.d -1 (heavy shielding). LET determination has been carried out with the method of high temperature TL ratios (HTR). The results will be compared with the results obtained by Russian colleagues and with dose calculations.