A High-Efficiency Fieldable Germanium Detector Array

Author

Fast, James E. ; Aalseth, Craig E. ; Caggiano, Joseph A. ; Day, Anthony R. ; Fuller, Erin S. ; Hossbach, Todd W. ; Hyronimus, Brian J. ; Runkle, Robert ; Warren, Glen A.

Author_Institution

Pacific Northwest Nat. Lab., Richland, WA

Volume

56

Issue

3

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

1224

Lastpage

1228

Abstract

Historically, large germanium arrays for field applications have consisted of multiple detectors each housed in their own cryostat. In order to ruggedize the detectors for field use these cryostats have had additional support material introduced that significantly impacted cryogenic performance. This paper presents the development of a new cryostat design suitable for deployment of ~10 kg of high purity germanium detectors that achieves outstanding cryogenic performance (~5 W at 80 K) while providing the high detection efficiency required for stand-off measurements and the ruggedization required for use in a variety of field applications.

Keywords

cryostats; germanium radiation detectors; HPGe detectors; cryogenic performance; cryostats; high purity germanium detectors; high-efficiency fieldable detector array; ruggedization; stand-off detection; Costs; Cryogenics; Detectors; Energy resolution; Germanium; Isotopes; Nitrogen; Research and development; Sensor arrays; Vacuum systems; Cooling; gamma-ray spectroscopy detectors; germanium;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2009.2016093

Filename

5076003