DEVELOPMENT OF SPUTTER-INITIATED RESONANCE IONIZATION SPECTROSCOPY FOR APPLICATION IN THE SINGLE-ATOM DETECTION OF TECHNETIUM

Award Information
Agency: Department of Energy
Branch: N/A
Contract: N/A
Agency Tracking Number: 409
Amount: $439,119.00
Phase: Phase II
Program: SBIR
Awards Year: 1984
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
P.o. Box 138, 114 Ridgeway Center, Oak Ridge, TN, 37830
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Tom J. Whitaker
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
WE PROPOSE THE DEVELOPMENT OF A NEW ANALYTICAL TECHNIQUE, SPUTTER-INITIATED RESONANCE IONIZATION SPECTROSCOPY (SIRIS) FOR THE SINGLE-ATOM DETECTION OF ISOTOPES OF TECHNETIUM. THIS TECHNIQUE IS TO BE USED IN A STUDY RECENTLY PROPOSED BY G.A. COWAN AND W.C. HAXTON TO DETERMINE THE BORON-8 COMPONENT OF THE SOLAR NEUTRINO FLUX. IN SIRIS, AN ARGON ION BEAM SPUTTERS A SMALL QUANTITY OF SOLID SAMPLE INTO THE GAS PHASE. A LASER THEN SELECTIVELY (AND EFFICIENTLY) IONIZES ATOMS OF A PARTICULAR ELEMENT, USING RESONANCE IONIZATION SPECTROSCOPY (RIS). RESULTING IONS ARE ANALYZED IN A MAGNETIC MASS SPECTROMETER, THUS ADDING ISOTOPIC SELECTIVITY TO THE ELEMENTAL SELECTIVITY PROVIDED BY RIS. IN PHASE I OF THE PROPOSED PROJECT, WE WOULD DEMONSTRATE THESENSITIVITY OF SIRIS FOR THE DETECTION OF TC-97, TC-98 AND TC-99 AND PERFORM PRELIMINARY EXPERIMENTS TO DETERMINE THE DEGREE OF INTERFERENCE WHICH MIGHT BE EXPECTED FROM MOLYBDENUM IN REAL ANALYSES.

* Information listed above is at the time of submission. *

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