García E, González D, Morales A, Morales J, Ortiz de Solórzano A, Puimedón J, Sáenz C, Salinas A, Sarsa M L, Villar J A
Laboratorio de Física Nuclear, Facultad de Ciencias, Universidad de Zaragoza, Spain.
Appl Radiat Isot. 1998 Dec;49(12):1749-54. doi: 10.1016/s0969-8043(98)00061-x.
The contribution of 222Rn to the background in a low background experiment with a germanium detector has been estimated. We have also checked the efficacy of a standard radon cleaning system. The cleaning reduces the radon concentration two orders of magnitude with respect to the air in the laboratory. The residual 222Rn represents at most 12.5% of the background in the low energy region, a value low enough for the purpose of our experiment. A detailed study of the radioactive background is presented.