USA flag logo/image

An Official Website of the United States Government

DEVELOPMENT OF AN IMPROVED DETECTOR FOR KR-81 AND OTHER NOBLE GAS ISOTOPES

Award Information

Agency:
National Science Foundation
Branch:
N/A
Award ID:
7562
Program Year/Program:
1988 / SBIR
Agency Tracking Number:
7562
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Pellissippi International Inc.
10521 Research Dr Ste 300 Knoxville, TN 37932
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1988
Title: DEVELOPMENT OF AN IMPROVED DETECTOR FOR KR-81 AND OTHER NOBLE GAS ISOTOPES
Agency: NSF
Contract: N/A
Award Amount: $48,000.00
 

Abstract:

THE IMPORTANCE OF COUNTING NOBLE GAS ATOMS WITH ISOTOPIC SELECTIVITY STEMS FROM THE PRACTICAL FACT THAT THESE ATOMS CAN BE REMOVED FROM LARGE QUANTITITES OF MATERIALS, AND IF COUNTED INDIVIDUALLY, OFFER OPPORTUNITIES FOR PARTICLE PHYSICS, DATING, ENVIRONMENTAL, AND MEDICAL APPLICATIONS. RESONANCE IONIZATION SPECTROSCOPY (RIS), COMBINED WITH MASS SPECTROSCOPY, HAS LED TO A SYSTEM FOR COUNTING KR-81 (OR OTHER ISOTOPES OF KR OR XE) DOWN TO ABOUT THE LEVEL OF 1,000 ATOMS IN A SAMPLE. HOWEVER, A MUCH IMPROVED DETECTOR (RISTRON) WOULD UTILIZE A NEW PRINCIPLE WHEREIN THE SAMPLE ATOMS ARE STORED IN A SEMICONDUCTING TARGET SUCH AS SILICON OR GERMANIUM AND RECOVERED BY LASER ANNEALING. THIS ARRANGEMENT WOULD PERMIT ISOTOPIC ENRICHMENT BETWEEN EACH RIS-LASER PULSE AND WOULD NOT REQUIRE ISOLATING THE DETECTOR FROM THE VACUUM SYSTEM. IN PHASE I, WE WOULD ATTEMPT TO SHOW THAT NON-SELECTIVE IONIZATION (AS A BY-PRODUCT OF TARGET ANNEALING) DOES NOT INTERFERE WITH THE ION-OPTICS USED IN THE MASS-SPECTROMETER. ASSUMING THIS TO BE THE CASE, PHASE II WOULD ALLOW THE CONFIGURATION OF A COMPLETE COUNTING SYSTEM. APPLICATION OF KR-81 ALONE INCLUDES A BR-81(V,E-)KR SOLAR NEUTRINO EXPERIMENT, POLAR ICE-CAP DATING, OCEANOGRAPHY, GROUNDWATER TRANSPORT STUDIES, AND OTHER EARTH SCIENCES USES. OUR MARKETING RESEARCH SHOWS THAT A RELIABLE SYSTEM FOR KR-81 COUNTING WOULD HAVE CONSIDERABLE COMMERCIAL USE.

Principal Investigator:

Dr g s hurst
0

Business Contact:

Small Business Information at Submission:

Pellissippi International Inc
10521 Research Drive Suite 300 Knoxville, TN 37932

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