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calculator to work.
ASTM standard E-545 is a standard
method for determining image quality in direct thermal
neutron radiographic examinations. This
calculator gives the neutron radiographic category (from 1 to 5) in
accordance with ASTM E-545, based on the data entered.
Enter the values
for film density measured from the image of the beam purity indicator (BPI)
and sensitivity indicator (SI):
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