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Radiation shielding for underground low-background experiments

D. Y Stewart·P. F. Harrison·B. Morgan·Y. A. Ramachers
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Abstract

The design task of creating an efficient radiation shield for the new COBRA double-beta decay experiment led to a comprehensive study of commercially available shielding materials. The aim was to find the most efficient combination of materials under the constraints of an extreme low-background experiment operating in a typical underground laboratory. All existing shield configurations for this type of experiment have been found to perform sub-optimally in comparison to the class of multilayered configurations proposed in this study. The method used here to create a specific shield configuration should yield a close to optimal result when applied to any experiment utilising a radiation shield. In particular, the survey of single material response to a given radiation source turns out to give a guideline for the construction of efficient multilayer shields.

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D. Y Stewart, P. F. Harrison, B. Morgan, Y. A. Ramachers. 2006-07-31. Radiation shielding for underground low-background experiments. https://doi.org/10.1063/1.2402703

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