CDMS-II uses detectors known as Z-sensitive ionization phonons (ZIPs) to search for weakly interacting massive particles (WIMPs), a very promising candidate for the dark matter in the universe. The most recent data run utilized 12 ZIP detectors (six Ge and six Si) running for frac(1, 2) year at the Soudan deep underground laboratory (780 m below surface), resulting in the current world's highest sensitivity to WIMP-nucleon coherent interaction [D.S. Akerib, et al., Phys. Rev. Lett. 93 (2004) 211301]. The CDMS-II experiment is approved to run 30 ZIPs until summer 2007 and its goal is to another order of magnitude increase in sensitivity to WIMPs. We present the detector preparation steps leading to the production of the CDMS-II detectors to be used in this final run.
|Original language||English (US)|
|Number of pages||3|
|Journal||Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment|
|State||Published - Apr 14 2006|
Bibliographical noteFunding Information:
This work is supported by the National Science Foundation under Grant No. PHY-9722414, by the Department of Energy under Contracts DE-AC03-76SF00098, DE-FG03-90ER40569, DE-FG03-91ER40618, and by Fermilab, operated by the Universities Research Association Inc., under Contract No. DE-AC02-76CH03000 with the Department of Energy. The ZIP detectors were fabricated in the Stanford Nanofabrication Facility operated under NSF.