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  4. Standard "ASTM E803-91(1996)"
WITHDRAWN ASTM E803-91(1996) 1.1.1996 preview

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ASTM E803-91(1996)

Standard Test Method for Determining the L/D Ratio of Neutron Radiography Beams



STANDARD published on 1.1.1996


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The information about the standard:

Designation standards: ASTM E803-91(1996)
Note: WITHDRAWN
Publication date standards: 1.1.1996
SKU: NS-48059
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM E803-91(1996) :

Keywords:

beam collimation, L/D ratio, neutron radiography, radiographic unsharpness, umbral shadow

Additional information

 
1. Scope

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.
 
2. Referenced Documents

E1316-24

Standard Terminology for Nondestructive Examinations

E748-19

Standard Guide for Thermal Neutron Radiography of Materials

Latest update: 2025-07-21 (Number of items: 2 209 006)
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