布尔比地下实验室的伽马本底测量。
Gamma background measurements in the Boulby Underground Laboratory.
作者信息
Malczewski Dariusz, Kisiel Jan, Dorda Jerzy
机构信息
Faculty of Earth Sciences, University of Silesia, Bedzinska 60, 41-200 Sosnowiec, Poland.
Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland.
出版信息
J Radioanal Nucl Chem. 2013;298(3):1483-1489. doi: 10.1007/s10967-013-2540-9. Epub 2013 May 15.
To determine background radiation levels that might influence experiments, we measured in situ gamma-ray emissions at ten locations in the Boulby Underground Laboratory. For gamma radiation in the energy range of 7-2,734 keV, the counts varied from 6.5 to 28 γ s. For measurements inside the Lab, the arithmetic mean was 24 γ s. The sedimentary rocks that surrounded the Lab, halite and mudstone, were characterized by very low activity concentrations of uranium (0.8-7.1 Bq kg) and thorium (0.6-3.9 Bq kg).
为了确定可能影响实验的背景辐射水平，我们在布尔比地下实验室的十个地点进行了原位伽马射线发射测量。对于能量范围在7 - 2734 keV的伽马辐射，计数率在6.5至28 γ/s之间变化。在实验室内部进行的测量中，算术平均值为24 γ/s。环绕实验室的沉积岩，即石盐和泥岩，其铀（0.8 - 7.1 Bq/kg）和钍（0.6 - 3.9 Bq/kg）的活度浓度非常低。
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