NANOCRYSTALLINE COATING FOR UHMWPE PROSTHESES

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$99,994.00
Award Year:
1999
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
45590
Agency Tracking Number:
1R43AR046327-01
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1 PATRIOTS PARK, BEDFORD, MA, 01730
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
FEREYDOON NAMAVAR
() -
Business Contact:
(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.

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