High-exposure dosimetry with LiF (TLD-100) by photo-acoustic spectrometry

O. Dóka, T. Biró, A. Lőrincz

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Optical absorption of LiF:Mg, Ti (TLD-100) as-received and annealed powders was investigated in the 300-700 nm range by photo-acoustic spectrometry (PAS). Near-logarithmic behaviour was found between 3 kGy and 1 MGy for the observed absorption peaks at 380, 444 and 547 nm. Optical bleaching properties were studied with white light and monochromatic irradiations at 254 and 366 nm. Fading characteristics were determined. It is shown that PAS is an appropriate tool for measuring doses on powders, especially in the high-dose range. Suggestions are made for extending the dose range to lower levels. In this way LiF TLD-100 powder may be used continuously from the μ Gy (by thermoluminescent methods) to the MGy (by PAS) range.

Original languageEnglish
Pages (from-to)820-825
Number of pages6
JournalJournal of Physics D: Applied Physics
Volume21
Issue number5
DOIs
Publication statusPublished - May 14 1988

Fingerprint

Powders
Spectrometry
Dosimetry
dosimeters
Acoustics
dosage
acoustics
spectroscopy
bleaching
fading
Bleaching
Light absorption
suggestion
optical absorption
Irradiation
irradiation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films
  • Electronic, Optical and Magnetic Materials

Cite this

High-exposure dosimetry with LiF (TLD-100) by photo-acoustic spectrometry. / Dóka, O.; Biró, T.; Lőrincz, A.

In: Journal of Physics D: Applied Physics, Vol. 21, No. 5, 14.05.1988, p. 820-825.

Research output: Contribution to journalArticle

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