A PULSED X-RAY SOURCE USING K-EDGE TRANSITION RADIATION

Award Information
Agency: Department of Energy
Branch: N/A
Contract: N/A
Agency Tracking Number: 11594
Amount: $500,000.00
Phase: Phase II
Program: SBIR
Awards Year: 1991
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
285 Hamilton Avenue #430, Palo Alto, CA, 94301
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 () -
Business Contact
 DR. MELVIN A. PIESTRUP
Title: PRESIDENT
Phone: (415) 328-7337
Research Institution
N/A
Abstract
THE OBJECTIVE OF THE PROPOSED RESEARCH PROGRAM IS TO INVESTIGATE THE USE OF A NOVEL TRANSITION-RADIATION SOURCE TO PRODUCE A LOW-COST, LABORATORY-SCALE, INTENSE, PULSED X-RAY SOURCE. BY DESIGNING TRANSITION RADIATORS TO EMIT X RAYS AT THE FOIL MATERIAL K-SHELL PHOTOABSORPTION EDGE, THE X-RAY SPECTRUM IS NARROWED. THE SOURCE IS THUS QUASIMONOCHROMATIC (20 TO 50% BANDWIDTH), DIRECTIONAL, INTENSE AND USES AN ELECTRON BEAM WHOSE ENERGY IS CONSIDERABLY LOWER THAN THAT NEEDED FOR SYNCHROTRON SOURCES. BY USING A PULSED ELECTRON SOURCE, FOIL HEATING IS MINIMIZED AND HIGH-PEAK CURRENTS CAN BE OBTAINED. THE RADIATION PRODUCED CAN BE IN THE WARM (5 TO 15 KEV) AND HARD (>15 KEV) X-RAY REGIONS OF THE SPECTRUM DEPENDING UPON THE FOIL MATERIAL USED, THE FOIL THICKNESS, AND THE ELECTRON-BEAM ENERGY. PHASE I RESEARCH WILL BE TO DESIGN RADIATORS, DETERMINE THEIR THEORETICAL X-RAY FLUX AND DETERMINE EXPERIMENTALLY THE TOTAL OUTPUT POWER USING THE ROSS FILTER TECHNIQUE. BREMSSTRAHLUNG CONTAMINATION WILL BE CALCULATED AND MEASURED.

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

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