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

Importancia y uso:

4.1 The quality of a neutron radiographic image is dependent upon many factors. The L/D ratio is one of those factors and constitutes a numerical definition of the geometry of the neutron beam. The L/D ratio required for a specific neutron radiographic examination is dependent upon the thickness of the specimen and the physical characteristics of the particular element of interest. Use of this test method allows the radiographer and the user to determine and periodically measure the effective collimation ratio.

Subcomité:

E07.05

Referida por:

E2861-16R20, E3398-23, E0748-19, E0545-19, E0543-21, E0543-21

Volúmen:

03.03

Número ICS:

19.100 (Non-destructive testing)

Palabras clave:

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