QUASI-MONOCHROMATIC X-RAY SOURCE FOR MAMMOGRAPHY

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$0.00
Award Year:
2002
Program:
SBIR
Phase:
Phase I
Contract:
2R44CA086545-02
Agency Tracking Number:
CA086545
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
ADELPHI TECHNOLOGY
ADELPHI TECHNOLOGY, 2181 PARK BLVD, PALO ALTO, CA, 94306
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
MELVIN PIESTRUP
(650) 328-7337
MELPIE@ADELPHITECH.COM
Business Contact:
CHARLES GARY
(650) 328-7337
CGARY@ADELPHITECH.COM
Research Institution:
n/a
Abstract
Description (provided by applicant): The objective of the proposed research is to construct a prototype narrow-bandwidth x-ray source for mammography using a thin, efficient hybrid radiator driven by a relativistic electron beam of moderate energy and current. The high x-ray yield (photons/electron) of the source permits the use of modest electron-beam currents, preventing thermal damage to the radiator itself. The radiator is thin, permitting the electron beam to pass through it many times, thereby proportionally increasing the emitted x-ray flux. Since the source is inherently collimated and quasi-monochromatic, it will produce higher quality radiographic images while lowering the dose to the patient. Phase I experiments have demonstrated intense quasi-monochromatic x-rays in the range optimum for mammography (15 to 25 keV). Calculations of the x-ray yield and the average current passing through the radiator have demonstrated that there is adequate flux for imaging. The research will proceed by improving the design of the thin hybrid radiator and experimentally demonstrating its feasibility by producing images of inanimate phantoms. The potential for successful development of the prototype imaging system is very high because our Phase I research has already experimentally demonstrated, both electron recycling and narrow bandwidth, tunable x-ray generation. These results indicate that a high quality mammogram can be generated in less than 3 seconds.

* 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