ASTM E 803 : 1991 : R2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for Determining the L/D Ratio of Neutron Radiography Beams
Hardcopy , PDF
15-09-2020
English
15-05-1991
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 03.03, 2017 Describes an empirical technique for the measurement of the effective collimation ratio, L/D, of neutron radiography beams.
| Committee |
E 07
|
| DocumentType |
Test Method
|
| Pages |
7
|
| ProductNote |
Reconfirmed 2002
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy |
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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