A study of incomplete charge collection in cryogenic detectors using a segmented 60 gram germanium phonon and ionization detector

Conference · Mon Nov 01 00:00:00 EST 1993 · Journal of Low Temperature Physics; (United States)

OSTI ID:5478321

Young, B A; Shutt, T; Akerib, D; Barnes, P D; Cummings, A; Margulies, S; Sadoulet, B; Stockwell, W; White, S ^[1]; Emes, J; Smith, G ^[2]; Aubourg, E ^[3]; Da Silva, A ^[4]; Haller, E E ^[5]; Ross, R R ^[5]

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1. Univ. of California, Berkeley, CA (United States)
2. Lawrence Berkeley Lab., Berkeley, CA (United States)
3. DAPNIA-SPP, Cen Saclay Gif-Sur-Yvette (France)
4. Univ. of British Columbia, Vancouver (Canada)
5. Univ. of California, Berkeley, CA (United States) Lawrence Berkeley Lab., Berkeley, CA (United States)

The authors have tested a new 60 gram germanium phonon and ionization detector to study incomplete charge collection effects in cryogenic detectors. An understanding of such effects is necessary to further improve the nuclear vs. electronic recoil discrimination capability of cryogenic detectors. The detector is operated at [approx] 20 mK. It has three concentric ionization channels, and four electric field shaping structures on its sides. Phonons are sensed using NTD Ge thermistors. First results obtained using this device and moveable radioactive sources of [sup 241]Am and [sup 57]Co will be presented.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5478321
• Report Number(s): CONF-930751-; CODEN: JLTPAC
• Journal Information: Journal of Low Temperature Physics; (United States), Vol. 93:3-4; Conference: 5. international workshop on low temperature detectors, Berkeley, CA (United States), 29 Jul - 3 Aug 1993; ISSN 0022-2291
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
GERMANIUM
PERFORMANCE TESTING
RADIATION DETECTORS
MONOCRYSTALS
NONLUMINOUS MATTER
PHONONS
TEMPERATURE RANGE 0000-0013 K
CRYSTALS
ELEMENTS
MATTER
MEASURING INSTRUMENTS
METALS
QUASI PARTICLES
TEMPERATURE RANGE
TESTING
440103* - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation
665200 - Solid-State Plasma- (1992-)