ASTM-E496 2002

$44.96

E496-02 Standard Test Method for Measuring Neutron Fluence and Average Energy from ³H(d,n)⁴He Neutron Generators by Radioactivation Techniques ¹

Published By	Publication Date	Number of Pages
ASTM	2002	12

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Categories: 27.120.30 - Fissile materials and nuclear fuel technology, ASTM

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Description

1.1 This test method covers a general procedure for the measurement of the fast-neutron fluence rate produced by neutron generators utilizing the ³ H( d,n ) ⁴ He reaction. Neutrons so produced are usually referred to as 14-MeV neutrons, but range in energy depending on a number of factors. This test method does not adequately cover fusion sources where the velocity of the plasma may be an important consideration.

1.2 This test method uses threshold activation reactions to determine the average energy of the neutrons and the neutron fluence at that energy. At least three activities, chosen from an appropriate set of dosimetry reactions, are required to characterize the average energy and fluence. The required activities are typically measured by gamma ray spectroscopy.

1.3 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.

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PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method
2	Significance and Use FIG. 1 FIG. 2
3	Apparatus FIG. 3 FIG. 4
4	Materials and Manufacture Calibration Procedure for Determining the Neutron Energy FIG. 5
5	Procedure for Determining the Neutron Fluence TABLE 1
6	Calculation of Neutron Energy TABLE 2
7	FIG. 6 TABLE 3
8	FIG. 7 FIG. 8
9	TABLE 4 FIG. 9
10	Calculation of Neutron Fluence Report
11	Precision and Bias Keywords REFERENCES

Additional information

Standard Title	E496-02 Standard Test Method for Measuring Neutron Fluence and Average Energy from <sup>3</sup>H(<i>d,n</i>)<sup>4</sup>He Neutron Generators by Radioactivation Techniques <sup>1</sup>
Published Code	ASTM
Publication Date	2002
Pages Count	12
ICS Codes	27.120.30 - Fissile materials and nuclear fuel technology

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ASTM-E496 2002

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