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Dark Matter -Where Are You?

Qdrive Cryocoolers Help Probe the Universe's Mysteries

Silent Cold for Liquid Noble Pools in Dark Matter Detectors

Date: 31-Mar-2010

WIMPs or Weakly Interacting Massive Particles are thought to comprise the majority of matter in the Universe - But how do we know and how can we find them to check? Early experiments used huge ultra-pure semiconductor crystals, cooled to millikelvin temperatures (all at huge expense). Newer experiments use small dewars lined with high-efficiency photomultipliers and filled with liquefied noble gases (Argon, Xenon) at temperatures of 80-160K. Qdrive crycoolers provide the smooth, maintenance-free cold, 24/7, for a number of these detectors around the world. No other provider can meet this challenge: Minimal vibration, 24/7 operation with no routine service, hermetic coldtip for process purity; and precision temperature by capacity modulation (no parasitic heater load). Is it any wonder the leading scientists in this far-reaching pursuit have turned to Qdrive?