Composite screens used as a radiographic aid. Final report
Tests evaluating fluorometallic or composite X-ray intensifying screens have shown that these screens can be valuable and useful accessories in the field of industrial radiography. In many applications, they can increase inspection efficiency by reducing exposure times and possibly lowering the kilovoltages which are required when using conventional lead screens. The radiographic tests were performed using steel plates ranging in thickness from 0.250 to 4.0 inches in the 150 kV to 2.5 MeV radiation quality range with ASTM film classes 1 and 2. Image resolution assessment was based upon penetrameter requirements (2-2T) set forth in MIL-STD-453, Inspection, Radiographic. The resultant radiographs using these screens attained at least the 2-2T quality required by most codes. The high speed screen appears to offer more advantages than the high definition screen.
- Research Organization:
- Army Materials and Mechanics Research Center, Watertown, MA (USA)
- OSTI ID:
- 5375404
- Report Number(s):
- AD-A-097936/9; AMMRC-TR-81-11
- Country of Publication:
- United States
- Language:
- English
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63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABSORPTION
ALKALINE EARTH METAL COMPOUNDS
BIOLOGICAL SHIELDING
CALCIUM COMPOUNDS
COMPOSITE MATERIALS
DIMENSIONS
ELECTROMAGNETIC RADIATION
FILMS
FLUORESCENCE
IMAGES
INDUSTRIAL RADIOGRAPHY
IONIZING RADIATIONS
LEAD COMPOUNDS
LUMINESCENCE
MATERIALS
OPTIMIZATION
RADIATION PROTECTION
RADIATIONS
RESOLUTION
SHIELDING
SHIELDS
THICKNESS
TUNGSTATES
X RADIATION