EXTRANUCLEAR LABORATORIES WILL INVESTIGATE A DETECTOR FOR IONS IN A MASS SPECTROMETER IN WHICH IONS ARE ACCELERATED TOHIGH ENERGY AND THEN PERMITTED TO STRIKE A METAL SURFACE, WHERE THEY PRODUCE SECONDARY ELECTRONS.

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$35,000.00
Award Year:
1986
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
5316
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Extranuclear Laboratories Inc
240 Alpha Drive, Po Box 11512, Pittsburgh, PA, 15238
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
WADE L FITE
PRINCIPAL INVESTIGATOR
(412) 963-7530
Business Contact:
() -
Research Institution:
n/a
Abstract
EXTRANUCLEAR LABORATORIES WILL INVESTIGATE A DETECTOR FOR IONS IN A MASS SPECTROMETER IN WHICH IONS ARE ACCELERATED TOHIGH ENERGY AND THEN PERMITTED TO STRIKE A METAL SURFACE, WHERE THEY PRODUCE SECONDARY ELECTRONS. THE ELECTRONS ARE THEN ACCELERATED TO A SCINTILLATOR WHERE THEY PRODUCE PHOTONS TO ACTUATE A CLOSED PHOTOMULTIPLIER TUBE. THIS TYPEOF DETECTOR IS KNOWN AS A DALY DOORKNOB DETECTOR WHEN THE PHOTONS ARE IN THE VISIBLE REGION. THE PRESENT WORK ADDRESSES THE POSSIBILITY OF USING A SCINTILLATOR THAT PRODUCES PHOTONS IN THE FAR UV RATHER THAN THE VISIBLE SPECTRUM. IN THIS CASE, THE PHOTOMULTIPLIER NEED NOT HAVE APHOTODYNODE WITH A LOW WORK FUNCTION AND ITS ATTENDANT THERMAL EMISSION NOISE. PREVIOUS EXPERIMENTS ON UV PHOTON COUNTERS SUGGEST CERTAIN MATERIALS AS POTENTIAL SCINTILLA- TORS IN THE FAR UV. THESE WILL BE TESTED AND, IF PROMISING,BE BUILT INTO A DALY DOORKNOB CONFIGURATION. COMPARISON OF SENSITIVITY AND NOISE LEVEL OF THIS DETECTOR WITH A CONVEN- TIONAL OPEN CHANNELTRON DETECTOR WOULD BE MADE.

* information listed above is at the time of submission.

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