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A TUNABLE, MONOCHROMATIC X-RAY GENERATOR FOR EXPLOSIVES DETECTION

Award Information

Agency:
Department of Transportation
Branch:
N/A
Award ID:
26944
Program Year/Program:
1994 / SBIR
Agency Tracking Number:
26944
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Adelphi Technology, Inc.
2003 East Bayshore Rd. Redwood City, CA 94063-4121
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1994
Title: A TUNABLE, MONOCHROMATIC X-RAY GENERATOR FOR EXPLOSIVES DETECTION
Agency: DOT
Contract: N/A
Award Amount: $99,995.00
 

Abstract:

PARAMETRIC X-RADIATION (PXR) IS PROPOSED AS AN INTENSE, TUNABLE, MONOCHROMATIC HARD-X-RAY SOURCE FOR THE DETECTION OF EXPLOSIVES. THIS RADIATION IS HIGHLY COLLIMATED, HAS A BANDWIDTH OF 0.1, AND AN INTENSITY EQUAL TO THAT OF SYNCHROTRON RADIATION ON A PER ELECTRON BASIS. PXR GENERATION IS ACHIEVED BY PLACING CRYSTALS INTO THE PATH OF ELECTRON BEAMS WITH ENERGY OF 6 MEV OR GREATER. THE VIRTUAL PHOTONS ASSOCIATED WITH THE FIELDS OF THE ELECTRONS ARE BRAGG REFLECTED BY THE CRYSTAL LATTICE AND REAL X-RAYS APPEAR AT THE BRAGG ANGLE. THE PRODUCTION IS THUS ANALOGOUS TO X-RAY DIFFRACTION EXCEPT THAT THE X-RAY BEAM INCIDENT AT THE BRAGG ANGLE IS REPLACED BY A RELATIVISTIC ELECTRON BEAM. PREVIOUS RESEARCH BY US AND OTHERS HAVE DEMONSTRATED THAT X-RAYS WITH ENERGIES OF E < 15 KEV CAN BE PRODUCED. HOWEVER, THEORETICAL ANALYSES SHOW THAT HARDER X-RAYS (E > 50 KEV) CAN BE PRODUCED WITH GOOD EFFICIENCY. DURING THE PHASE I RESEARCH WE WILL DESIGN RADIATORS FOR 50 KEV EMISSION, CALCULATE THEIR THEORETICAL X-RAY FLUX, AND MEASURE EXPERIMENTALLY THEIR HARD-R-RAY SPECTRUM USING PULSE HEIGHT ANALYSIS.

Principal Investigator:

Dr Melvin A Piestrup
President
0

Business Contact:

Small Business Information at Submission:

Adelphi Technology Inc.
2181 Park Blvd Palo Alto, CA 94306

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