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ASTM International, 05/15/1991
Publisher: ASTM
File Format: PDF
$30.00$60.00
Published:15/05/1991
Pages:7
File Size:1 file , 130 KB
Note:This product is unavailable in Russia, Ukraine, Belarus
1.1 This method defines an empirical technique for the measurement of the effective collimation ratio, L/D , of neutron radiography beams. The technique is based upon analysis of a neutron radiographic image and is independent of measurements and calculations based on physical dimensions of the collimator system. The values derived by this technique should be more accurate than those based on physical measurements, particularly for poorly defined apertures.
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