A NEW RADIOGRAPHIC CORROSION INSPECTION CAPABILITY

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$496,121.00
Award Year:
1985
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
942
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Advanced Research & Applctns
1223 East Arques Avenue, Sunnyvale, CA, 94086
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
James H. Stanley
(408) 733-7780
Business Contact:
() -
Research Institution:
n/a
Abstract
CORROSION OF EQUIPMENT AND MATERIAL IS AN UNBIQUITOUS NATIONAL PROBLEM COSTING THE U.S. ECONOMY OVER $70 BILLIONS ANNUALLY. REALTIME RADIOGRAPHY HAS BEEN IDENTIFIED AS ONE OF SEVERAL PROMISING NEW NDE TECHNOLOGIES BECAUSE OF ITS POTENTIAL ABILITY TO SOLVE A SIGNIFICANT NUMBER OF EXISTING CORROSION INSPECTION PROBLEMS. YET, IN SPITE OF ITS POTENTIALL ADVANTAGES, REAL-TIME RADIOGRAPHY HAS NOT YET DEMONSTRATED A SIGNIFICANTLY BETTER ABILITY THAN OTHER COMPETING MODALITIES TO DETECT THE EARLY STAGES OF CORROSION WHEN CORRECTIVE ACTIONS CAN MOST EFFICIENTLY BE TAKEN. A DUAL-ENERGY RADIOGRAPHIC TECHNIQUE IS PROPOSED WHICH WILLL SIGNIFICANTLY ENHANCE THE CORROSION DETECTION AND DAMAGE ASSESSMENT CAPABILITIES OF REAL-TIME SYSTEMS. THE MAIN ADVANTAGE OF THE PROPOSED METHOD IS THAT IT IMPROVES THE CONSPICUITY OF DETAIL IN A DIGITAL IN A DIGITAL RADIOGRAPHY BY GREATLY REDUCING THE STRUCTUAL NOISE IN THE IMAGE. THE IMPROVED SENSITIVITY OFFERED BY DUAL-ENERGY METHODS COULD ALTERNATIVELY BE TRADED FOR AN EQUIVALENT DETECTIBIITY AT A MUCH LOWER DOSE LEVEL, AN IMPORTANT CONSIDERATION FOR ON-BOARD OR IN-SITU INSPECTIONS. IN ADDITION, THE DUAL-ENERGY RADIOGRPAHY ALSO ALLOWS THE USER TO IDENTIFY MATERIALS IN THE OBJECT UNDER EXAMINATION.

* information listed above is at the time of submission.

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