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Cryogenic germanium detectors for a weakly interactive massive particle (WIMP) dark-matter search

Stockwell, W. and Akerib, D. and Aubourg, É. and Barnes, P. D., Jr. and Cummings, A. and Da Silva, A. and Emes, J. and Golwala, S. and Haller, E. E. and Margulies, S. and Pritychenko, B. and Ross, R. R. and Sadoulet, B. and Shutt, T. and Smith, G. and Taylor, J. and White, S. and Young, B. A. (1994) Cryogenic germanium detectors for a weakly interactive massive particle (WIMP) dark-matter search. In: EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy V. Proceedings of SPIE. No.2280. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 374-381. ISBN 9780819416049. https://resolver.caltech.edu/CaltechAUTHORS:20180724-131524018

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Abstract

We are preparing an experimental search for weakly interacting massive particle (WIMP) dark matter using cryogenic germanium detectors. These detectors measure both the ionization and phonons produced by particle interactions in the substrate. The ionization measurement uses low drift fields, approximately equals 1 V/cm. The phonon measurement is made using neutron transmutation doped (NTD) germanium thermistors. Simultaneous detection of phonons and ionization allows us to discriminate between electron-recoil and nuclear-recoil events which gives a powerful method for isolating possible WIMP events (nuclear recoils) from background gamma ray events (electron recoils). Recent work on our understanding and optimization of these detectors will be presented.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.186825DOIArticle
ORCID:
AuthorORCID
Cummings, A.0000-0002-3840-7696
Golwala, S.0000-0002-1098-7174
Smith, G.0000-0003-4494-8277
Additional Information:© 1994 Society of Photo-optical Instrumentation Engineers (SPIE). This work was supported by the Center for Particle Astrophysics, a National Science Foundation Science and Technology Center operated by the University of California, Berkeley, under Cooperative Agreement No. AST-8809616, and by the Department of Energy under contract DE-76SF00098.
Funders:
Funding AgencyGrant Number
NSFAST-8809616
Department of Energy (DOE)DE-76SF00098
Series Name:Proceedings of SPIE
Issue or Number:2280
Record Number:CaltechAUTHORS:20180724-131524018
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180724-131524018
Official Citation:Walter Stockwell, D. Akerib, E. Aubourg, P. D. Barnes, A. Cummings, Angela Da Silva, J. Emes, Sunil Golwala, Eugene E. Haller, S. Margulies, B. Pritychenko, R. R. Ross, Bernard Sadoulet, T. Shutt, Garth Smith, J. Taylor, S. White, B. A. Young, "Cryogenic germanium detectors for a weakly interactive massive particle (WIMP) dark-matter search", Proc. SPIE 2280, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy V, (16 September 1994); doi: 10.1117/12.186825; https://doi.org/10.1117/12.186825
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88195
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:24 Jul 2018 20:28
Last Modified:16 Nov 2019 00:39

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