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ASTM International - ASTM E705-13a

Standard Test Method for Measuring Reaction Rates by Radioactivation of Neptunium-237

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Organization: ASTM International
Publication Date: 1 August 2013
Status: inactive
Page Count: 5
ICS Code (Radiation measurements): 17.240
ICS Code (Fissile materials and nuclear fuel technology): 27.120.30
significance And Use:

5.1 Refer to Practice E261 for a general discussion of the determination of fast-neutron fluence rate with fission detectors.

5.2 237Np is available as metal foil, wire, or oxide... View More

scope:

1.1 This test method covers procedures for measuring reaction rates by assaying a fission product (F.P.) from the fission reaction  237Np(n,f)F.P.

1.2 The reaction is useful for measuring neutrons with energies from approximately 0.7 to 6 MeV and for irradiation times up to 30 to 40 years.

1.3 Equivalent fission neutron fluence rates as defined in Practice E261 can be determined.

1.4 Detailed procedures for other fast-neutron detectors are referenced in Practice E261.

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6 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.

Document History

December 1, 2018
Standard Test Method for Measuring Reaction Rates by Radioactivation of Neptunium-237
5.1 Refer to Practice E261 for a general discussion of the determination of fast-neutron fluence rate with fission detectors. 5.2 237Np is available as metal foil, wire, or oxide powder. For further...
ASTM E705-13a
August 1, 2013
Standard Test Method for Measuring Reaction Rates by Radioactivation of Neptunium-237
5.1 Refer to Practice E261 for a general discussion of the determination of fast-neutron fluence rate with fission detectors. 5.2 237Np is available as metal foil, wire, or oxide powder. For further...
June 1, 2013
Standard Test Method for Measuring Reaction Rates by Radioactivation of Neptunium-237
5.1 Refer to Practice E261 for a general discussion of the determination of fast-neutron fluence rate with fission detectors. 5.2 237Np is available as metal foil, wire, or oxide powder. For further...
July 1, 2008
Standard Test Method for Measuring Reaction Rates by Radioactivation of Neptunium-237
Refer to Practice E 261 for a general discussion of the determination of fast-neutron fluence rate with fission detectors. 237Np is available as metal foil, wire, or oxide powder. For further...
January 10, 1996
Standard Test Method for Measuring Reaction Rates by Radioactivation of Neptunium-237
1.1 This test method covers procedures for measuring reaction rates by assaying a fission product (F.P.) from the fission reaction 237 Np(n,f)F.P. 1.2 The reaction is useful for measuring neutrons...
January 1, 1996
Standard Test Method for Measuring Reaction Rates by Radioactivation of Neptunium-237
1.1 This test method covers procedures for measuring reaction rates by assaying a fission product (F.P.) from the fission reaction 237 Np(n,f)F.P. 1.2 The reaction is useful for measuring neutrons...
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