Reusability of CaF :Mn Thermoluminescence Dosimeters for Photon Irradiations at High Absorbed-Dose Levels

DW Vehar

doi:10.1520/STP15137S

SYMPOSIA PAPER Published: 01 January 1994

STP15137S

Reusability of CaF :Mn Thermoluminescence Dosimeters for Photon Irradiations at High Absorbed-Dose Levels

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The effects of high absorbed dose on the reusability of CaF₂:Mn thermoluminescence dosimeters (TLDs) are investigated to determine a recommended upper limit on absorbed dose for TLDs that are to be reused. This investigation examines degradation in the uniformity of response and changes in sensitivity of a batch of TLDs when exposed to gamma-radiation doses ranging from 1 Gy to 1000 Gy, and confirms earlier work suggesting that CaF₂:Mn TLDs should not be reused in applications where cumulative absorbed doses are likely to exceed 100 Gy.

Author Information

Vehar, DW

Radiation Metrology Laboratory, Sandia National Laboratories, Albuquerque, NM

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Details

Developed by Committee: E10

Pages: 433–440

DOI: 10.1520/STP15137S

ISBN-EB: 978-0-8031-5281-6

ISBN-13: 978-0-8031-1899-7

Reusability of CaF :Mn Thermoluminescence Dosimeters for Photon Irradiations at High Absorbed-Dose Levels

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