ASTM E803-91(1996)
Standard Test Method for Determining the L/D Ratio of Neutron Radiography Beams

Standard No.

ASTM E803-91(1996)

Release Date

1991

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM E803-91(2002)

Latest

ASTM E803-20

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.

ASTM E803-91(1996) history

• 2020 ASTM E803-20 Standard Test Method for Determining the L/D Ratio of Neutron Radiography Beams
• 2017 ASTM E803-17 Standard Test Method for Determining the L/D Ratio of Neutron Radiography Beams
• 1991 ASTM E803-91(2013) Standard Test Method for Determining the L/D?Ratio of Neutron Radiography Beams
• 1991 ASTM E803-91(2008) Standard Test Method for Determining the L/D Ratio of Neutron Radiography Beams
• 1991 ASTM E803-91(2002) Standard Test Method for Determining the L/D Ratio of Neutron Radiography Beams
• 1991 ASTM E803-91(1996) Standard Test Method for Determining the L/D Ratio of Neutron Radiography Beams
• 1991 ASTM E803-91 Standard Test Method for Determining the L/D Ratio of Neutron Radiography Beams