Improvement in Ge Detector Cooling

reportActive / Technical Report | Accession Number: ADA516262 | Open PDF

Abstract:

High purity germanium HPGe detector cooling technology used in remote radionuclide assay applications, such as the Radionuclide Aerosol SamplerAnalyzer RASA Mark IV, is continually evolving. Cryocooler improvements in recent years have resulted in reduced size, reduced maintenance, improved reliability, and enhanced HPGe detector performance compared to systems based on earlier generations of cooling devices. The Cryo-Cycletrademark and Cryo-Pulse 5 are two such HPGe detector coolercryostat systems that we are modifying and evaluating for use in the RASA. The modifications will enhance vacuum lifetime and integrity, improve performance, and resolve the need to procure and handle liquid nitrogen LN2. Both cryocoolers offer advantages over the existing generation of HPGe detector coolercryostats used in the RASA and other remote-sensing applications.

Author(s):
Yocum, K. M. ; Martin, Gregory N. ; Colaresi, James F. ; Miley, Harry S.
Author Organization(s):
CANBERRA INDUSTRIES MERIDEN CT
Descriptive Note:
Conference paper
Supplementary Note:
Presented at the Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies (30th) held in Portsmouth, VA on 23-25 Sep 2008. Published in the Proceedings of the Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies (30th), p824-833, 2008. Sponsored by the National Nuclear Security Administration (NNSA) and the Air Force Research Laboratory (AFRL). The original document contains color images.
Pagination:
0011

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
DE-AC52-08NA28656
Monitor Series:
DOE/NNSA
 Subject Terms
Joint Capability Areas:
JCA_4.3_Maintain; JCA_6_Net Centric; JCA_5_Command and Control; JCA_8_Building Partnerships; JCA_5.3_Planning; JCA_6.1.1_Wired Transmission; JCA_6.4.1_Secure Information Exchange; JCA_8.2_Shape; JCA_6.1_Information Transport
Communities of Interest:
Ground and Sea Platforms
Descriptor(s):
*CRYOCOOLERS, *REMOTE DETECTORS, *RADIOACTIVE ISOTOPES, RADIATION MEASURING INSTRUMENTS, CRYOSTATS, DETECTORS, AEROSOLS, SYMPOSIA, GERMANIUM
Field(s)/Group(s):
Nuclear Instrumentation, Thermodynamics, Isotopes
Keyword(s):
*HIGH PURITY GERMANIUM DETECTORS, *RASA(RADIONUCLIDE AEROSOL SAMPLER ANALYZER), RADIONUCLIDES
Report Date:
2008 Sep 01
Creation Date:
2010 Mar 31