Miniature Long-Life Cooler for Portable Gamma Ray Detectors

Award Information
Agency:
Department of Homeland Security
Branch
n/a
Amount:
$99,994.98
Award Year:
2005
Program:
SBIR
Phase:
Phase I
Contract:
NBCHC050120
Award Id:
72101
Agency Tracking Number:
0511043
Solicitation Year:
2005
Solicitation Topic Code:
H-SB05.1-003
Solicitation Number:
n/a
Small Business Information
1367 Camino Robles Way, San Jose, CA, 95120
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
JamesMaddocks
(608) 265-4246
maddocks@cae.wisc.edu
Business Contact:
AliKashani
(408) 507-0906
akashani@atlasscientific.com
Research Institute:
n/a
Abstract
This proposal describes a battery operated cryocooler to be used for cooling High Purity Germanium (HPGe) detectors, commonly used for the detection of gamma rays. HPGe detectors are highly suitable for identifying nuclear materials, which is of great interest in the Department of Homeland Security (DHS) applications. HPGe detectors need to operate near 110 K requiring refrigeration for portable HPGe detectors. Portability is highly desirable and can be accomplished by means of a standalone, compact, low-vibration, efficient cryocooler. Power consumption is to be sufficiently low so that the overall system including battery packs is indeed portable. Various existing cryogenic refrigeration systems are thought not to be applicable for the current DHS application either for reasons of excessive power consumption, vibration or system mass, or for lacking reliability and efficiency. To address the refrigeration issue, we propose to develop a miniature pulse tube cooler. High frequency, pulsetube coolers (PTCs) represents the most promising technology for achieving lightweight standalone cryocoolers. Applications of this cooler include cooling of infrared and gamma ray detectors, cooling of electronics, and for use in the biomedical industry.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government