ASTM E 1496 Standard Test Method for Neutron Radiographic Dimensional Measurements
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ASTM E 1496 Document Information:
Title
Standard Test Method for Neutron Radiographic Dimensional Measurements
ASTM International
Publication Date:
Jun 1, 2005
Scope:
This test method provides a technique for extracting quantitative
dimensional information on an
object from its neutron radiograph. The technique is based on the
identification of changes in film
density caused by material changes where a corresponding discontinuity
in film density exists. This
test method is designed to be used with neutron radiographs made with
a well-collimated beam. The
film densities in the vicinity of the edge must be in the linear
portion of the density versus
exposure curve. The accuracy of this test method may be affected
adversely in installations with
high-angular-divergence neutron beams or with large object-to-film
distances.
This standard does not purport to address all of the safety concerns,
if any, associated with its
use. It is the responsibility of the user of this standard to
establish appropriate safety and
health practices and determine the applicability of regulatory
limitations prior to use.
Keywords:
- dimensional measurement
- neutron radiography
- quantitative radiography
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