ASTM-E2450 2023(Redline)

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E2450-23 Standard Practice for Application of CaF2(Mn) Thermoluminescence Dosimeters in Mixed Neutron-Photon Environments (Redline)

Published By	Publication Date	Number of Pages
ASTM	2023	8

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Category: ASTM

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Description

ASTM E2450-23

Redline Standard: Standard Practice for Application of CaF2(Mn) Thermoluminescence Dosimeters in Mixed Neutron-Photon Environments

ASTM E2450

Scope

1.1 This practice describes a procedure for correcting a CaF₂(Mn) thermoluminescence dosimeter (TLD) reading for its response to neutrons during the irradiation. The neutron response may be subtracted from the total TLD response to give the gamma-ray response. In fields with a large neutron contribution to the total response, this procedure may result in large uncertainties.

1.2 More precise experimental techniques may be applied if the uncertainty derived from this practice is larger than the level that the user can accept. These more precise techniques are not discussed here. The references in Section 8 describe some of these techniques.

1.3 This practice does not discuss effects on the TLD reading from neutron interactions with the material surrounding the TLD and used to ensure a charged particle equilibrium. These effects will depend on the isotopic composition of the surrounding material and its thickness, and on the incident neutron spectrum (1).2

1.4 The values stated in SI units are to be regarded as standard.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

dosimetry; gamma; LET; mixed-field; neutron; TLD;

ICS Code

ICS Number Code 17.240 (Radiation measurements)

DOI: 10.1520/E2450-23

Additional information

Standard Title	E2450-23 Standard Practice for Application of CaF<inf>2</inf>(Mn) Thermoluminescence Dosimeters in Mixed Neutron-Photon Environments (Redline)
Published Code	ASTM
Publication Date	2023
Pages Count	8