UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

ASTM International - ASTM E2450-05

Standard Practice for Application of CaF 2 (Mn) Thermoluminescence Dosimeters in Mixed Neutron-Photon Environments

inactive
Buy Now
Organization: ASTM International
Publication Date: 1 June 2005
Status: inactive
Page Count: 6
ICS Code (Radiation measurements): 17.240
scope:

1.1 This practice describes a procedure for measuring gamma-ray absorbed dose in CaF2(Mn) thermoluminescence dosimeters (TLDs) exposed to mixed neutron-photon environments during irradiation of materials and devices. The practice has broad application, but is primarily intended for use in the radiation-hardness testing of electronics. The practice is applicable to the measurement of absorbed dose from gamma radiation present in fields used for neutron testing.

1.2 This practice describes a procedure for correcting for the neutron response of a CaF2(Mn) TLD. The neutron response may be subtracted from the total 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.

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

1.4 This practice does not discuss effects on the TLD reading of neutron interactions with material surrounding the TLD to ensure charged particle equilibrium. These effects depend on the surrounding material and its thickness, and on the neutron spectrum (1).²

Document History

June 1, 2016
Standard Practice for Application of CaF2(Mn) Thermoluminescence Dosimeters in Mixed Neutron-Photon Environments
4.1 Electronic devices are typically tested for survivability to gamma radiation in pure gamma-ray fields. Testing electronic device response against neutrons is more complex since there is...
November 1, 2011
Standard Practice for Application of CaF2(Mn) Thermoluminescence Dosimeters in Mixed Neutron-Photon Environments
1.1 This practice describes a procedure for measuring gamma-ray absorbed dose in CaF 2 (Mn) thermoluminescence dosimeters (TLDs) exposed to mixed neutron-photon environments during irradiation of...
May 1, 2006
Standard Practice for Application of CaF2(Mn) Thermoluminescence Dosimeters in Mixed Neutron-Photon Environments
1.1 This practice describes a procedure for measuring gamma-ray absorbed dose in CaF 2 (Mn) thermoluminescence dosimeters (TLDs) exposed to mixed neutron-photon environments during irradiation of...
ASTM E2450-05
June 1, 2005
Standard Practice for Application of CaF2(Mn) Thermoluminescence Dosimeters in Mixed Neutron-Photon Environments
1.1 This practice describes a procedure for measuring gamma-ray absorbed dose in CaF 2 (Mn) thermoluminescence dosimeters (TLDs) exposed to mixed neutron-photon environments during irradiation of...
Advertisement