PT Journal
AU XENON Collaboration (Aprile, Eea
   Orrigo, SEA
TI Online Rn-222 removal by cryogenic distillation in the XENON100 experiment
SO European Physical Journal C
JI Eur. Phys. J. C
PY 2017
BP 358
EP 8pp
VL 77
IS 6
DI 10.1140/epjc/s10052-017-4902-x
LA English
AB We describe the purification of xenon from traces of the radioactive noble gas radon using a cryogenic distillation column. The distillation column was integrated into the gas purification loop of the XENON100 detector for online radon removal. This enabled us to significantly reduce the constant Rn-222 background originating from radon emanation. After inserting an auxiliary 222Rn emanation source in the gas loop, we determined a radon reduction factor of R > 27 (95% C.L.) for the distillation column by monitoring the Rn-222 activity concentration inside the XENON100 detector.
ER