Performance of a cryogenic system prototype for the XENON1T Detector
  We have developed an efficient cryogenic system with heat exchange and associated gas purification system, as a prototype for the XENON1T experiment. The XENON1T detector will use about 3 ton of liquid xenon (LXe) at a temperature of 175K as target and detection medium for a dark matter search. In this paper we report results on the cryogenic system performance focusing on the dynamics of the gas circulation-purification through a heated getter, at flow rates above 50 Standard Liter per Minute (SLPM). A maximum flow of 114 SLPM has been achieved, and using two heat exchangers in parallel, a heat exchange efficiency better than 96% has been measured. 
Elena Aprile, Ran Budnik, Bin Choi, Hugo Contreras, Karl Giboni, Luke   Goetzke, Rafael Lang, Kyungeun Lim, Antonio melgarej...
physics.ins-det hep-ex