NANOCRYSTALLINE COATING FOR UHMWPE PROSTHESES

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: N/A
Agency Tracking Number: 1R43AR046327-01
Amount: $99,994.00
Phase: Phase I
Program: SBIR
Awards Year: 1999
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
1 PATRIOTS PARK, BEDFORD, MA, 01730
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 FEREYDOON NAMAVAR
 () -
Business Contact
Phone: (781) 275-6000
Research Institution
N/A
Abstract
Not Available Present day pulsed power generators provide such intense sources of bremsstrahlung that may radiation diagnostics are overwhelmed in the near field of the source. Time-integrated radiation-dose maps and spectral measurements are usually made in the near field with TLDs, while time-resolved spectral measurements are typically made in the far field with Si PIN diodes. There is a thus need for compact, time-resolved detectors that can be located in the near field along with a test object to determine the spatial distribution and the bremsstrahlung spectrum on test shots. AASC proposes to develop an instrument to measure the x-ray dose, uniformity and spectrum over a large surface area at the position of a test object in a high dose x-ray simulator with spatial and temporal resolution. In Phase I a prototype instrument will be validated on the MBS simulator at the Arnold Engineering and Development Center. MSB produces a dose of order 1 mca/cm2 with a 30-40 ns pulse-width over an area of 100 cm2. After the Phase I validation, the Phase II goal is to scale the instrument up to measure radiation from the Decade Quad source of about 20 krad (Si), 40-50 ns pulse-width, and 2500 cm2 area.

* 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
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government