NEW FAST HEAVY YAP SCINTILLATOR BASED PARTICLE DETECTORS

Award Information
Agency:
National Science Foundation
Branch
n/a
Amount:
$65,000.00
Award Year:
1994
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
27325
Agency Tracking Number:
27325
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1105 Highland Circle, Blacksburg, VA, 24060
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Michail V. Korzhik
(703) 953-2249
Business Contact:
() -
Research Institute:
n/a
Abstract
RESEARCHERS ARE DEVELOPING NUCLEAR/PARTICLE DETECTORS USING NEW FAST HEAVY INORGANIC SCINTILLATORS. THESE MATERIALS ARE OF TWO CLASSES: (1) BRIGHT CERIUM-ACTIVATED CRYSTALS - YAP, GAO, AND GSO - WHICH COULD DISPLACE THALLIUM DOPED SODIUM AND CESIUM IODIDE IN CERTAIN APPLICATIONS. THE CURRENT YAP CRYSTALS (UP TO 50 X 50 X 10 MM(3) HAVE MEASURED EFFICIENCIES, RESOLUTIONS, BRIGHTNESSES, AND MECHANICAL PROPERTIES COMPARABLE TO, OR BETTER THAN, THOSE OF SODIUM IODIDE BUT ARE ~10 TIMES FASTER; AND (2) DENSE UNDOPED LEAD TUNGSTENATE CRYSTALS WHICH OFFER AN ALTERNATIVE TO BISMUTH GERMANATE. RELATIVE TO BGO, THE CURRENT PWO CRYSTALS (UP TO 22 X 22 X 180 MM(3)) ARE ~12 PERCENT DENSER, ~10 TIMES FASTER, AND HAVE ~10 TIMES BETTER ENERGY RESOLUTION BUT ARE ONLY ~10 PERCENT AS BRIGHT.

* information listed above is at the time of submission.

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