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

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 enrich ability. In order to measure the intrinsic background and study the radon adsorption capacity of Saratech activated carbon at various temperatures, a radon emanation measurement system with a high sensitive radon detector and an adsorption performance research system have been developed. In this paper, the detail of two systems and the measurement results of Saratech activated carbon will be presented.