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Improving the Radiation Damage Resistance of Germanium Detectors

Award Information

Agency:
Department of Energy
Branch:
N/A
Award ID:
81067
Program Year/Program:
2006 / SBIR
Agency Tracking Number:
81192S06-I
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Phds Co.
3011 Amherst Road Knoxville, TN 37921-3713
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2006
Title: Improving the Radiation Damage Resistance of Germanium Detectors
Agency: DOE
Contract: DE-FG02-06ER84501
Award Amount: $99,999.00
 

Abstract:

Arrays of germanium gamma-ray detectors are used for nuclear physics experiments at DOE particle accelerator facilities. Energetic massive particles from the accelerator degrade the performance of the detectors and ultimately limit their use. This problem pertains to the currently-existing Gammasphere detector array at Argonne National Laboratory as well as to the next generation detector arrays to be instrumented at the Rare Isotope Accelerator. This project will develop detector cooling technology to greatly reduce or eliminate the radiation damage problem. Phase I will identify the coldest detector temperature practically achievable with Stirling-cycle mechanical coolers. Tests will be conducted to identify noise problems that may be introduced by the vibrations of the cooler. If the detector temperature can be made cold enough, without significant noise from the cooler, the colder temperature can greatly reduce or eliminate radiation damage effects in germanium detectors. Commercial Applications And Other Benefits as described by the Applicant: These ultra-cold mechanically-cooled detectors should be more reliable and have better performance for longer time durations in nuclear physics beam line environments. Other potential applications that face radiation damage include satellite-based detectors (from energetic cosmic rays), oil well logging, and neutron activation analysis. Aside from the improvements with respect to radiation damage, this technology eliminates the liquid-nitrogen requirement for large volume germanium detectors, allowing the detectors to be used in a wider range of environments where liquid nitrogen may not be available.

Principal Investigator:

Ethan L. Hull
Dr.
8654813725
ethanhull@phdsco.com

Business Contact:

Ethan L. Hull
Dr.
8654813725
ethanhull@phdsco.com
Small Business Information at Submission:

PHDs
777 Emory Valley Road, Suite B Oak Ridge, TN 37830

EIN/Tax ID: 020634184
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No