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arXiv · 2111.07358

A Study on the radon removal performance of low background activated carbon

Y. Y. Chen·Y. P. Zhang·Y. Liu·J. C. Liu·C. Guo·P. Zhang·S. K. Qiu·C. G. Yang·Q. Tang
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Abstract

Radon and radon daughters pose significant backgrounds to rare-event searching experiments. Activated carbon, which has very strong adsorption capacity for radon, can be used for radon removal and radon enrichment. The internal $^{226}$Ra concentration ultimately limits its radon enrichment ability. In order to measure the intrinsic background and study the radon adsorption capability of Saratech activated carbon at various temperatures, a radon-emanation measurement system with a high-sensitivity radon detector and an adsorption-performance research-system have been developed. In this paper, a 0.71~mBq/m$^3$ high-sensitivity radon detector and measurement details of the radon-adsorption capability of Saratech activated carbon at low temperature will be presented.

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Y. Y. Chen, Y. P. Zhang, Y. Liu, J. C. Liu, C. Guo, P. Zhang, S. K. Qiu, C. G. Yang, Q. Tang. 2021-11-14. A Study on the radon removal performance of low background activated carbon. https://doi.org/10.1088/1748-0221%2F17%2F02%2Fp02003

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