IMPROVED REAL-TIME SIZE ANALYZER FOR INHALABLE PARTICLES

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$50,000.00
Award Year:
1988
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
8000
Agency Tracking Number:
8000
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Box 11512, 240 Alpa Dr, Pittsburgh, PA, 15238
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
() -
Research Institute:
n/a
Abstract
PYROLYSIS-PLUS-SURFACE IONIZATION (PPSI) IS A TECHNIQUE WHEREIN A PARTICLE IS IMPACTED ONTO A HOT CATALYTIC SURFACE WITH HIGH WORK FUNCTION, WHERE THE PARTICLE DECOMPSES AND THOSE OF ITS ATOMS WITH LOW IONIZATION POTENTIALS LEAVE THE SURFACE AS A BURST OF POSITIVE IONS WHICH CAN BE DETECTED ASA VOLTAGE PULSE. THIS RELATIVELY NEW TECHNIQUE, WHICH HAS ONLY BEEN USED IN PROTOTYPE DEVICES TO DATE, IS FAR MORE SENSITIVE THAN OPTICAL METHODS IN MANY CASES. IT IS HEREIN PROPOSED THAT THIS DETECTION TECHNIQUE BE ADAPTED AND TESTEDAS A UNIVERSAL PARTICLE COUNTER TO AUTOMATE AND IMPROVE THE SENSITIVITY OF A DEVICE WHICH SEPARATES PARTICLES BY SIZE. CONCURRENT WITH THIS EFFORT, AN ELECTROSTATIC MOBILITY ANALYZER COULD ALSO BE IMPROVED BY USING FIELD CHARGING TO EXTEND THE PARTICLE SIZE UPWARD INTO THE RESPIRABLE RANGE, AND BY USING FIRST-ORDER FOCUSING PRINCIPLES TO REDUCE MECHANICAL STABILITY REQUIREMENTS. THE RESULT WILL BE A REAL-TIME PARTICLE SIZE ANALYZER IN THE INHALABLE RANGE. EMPHASIS OF THIS PROJECT WILL BE TO DEVELOP A DEVICE SUITABLE FOR MEDICAL STUDIES, WORK PLACE MONITORING, AND CERTAIN PROCESS APPLICATIONS.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government