Relative thermoluminescent response of LiF-TLD to 252Cf fission fragments

Y. S. Horowitz, J. Kalef-Ezra

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


In the framework of our investigations into the use of modified track structure theory (TST) for the calculation of heavy charged particle (HCP) thermoluminescent (TL) yields, we have measured the relative TL response of LiF (Harshaw) to 252Cf fission fragments with the result ηff,α= 1.47 ± 0.34 (TLD-100), 1.25 ± 0.31 (TLD-600) and 1.24 ± 0.28 (TLD-700). The relative TL response at high ionization density is found to be strongly dependent on details of the high temperature annealing procedure and the former results for ηff,α are significantly reduced to 0.58 ± 0.1 (TLD-600, TLD-700) when oxygen-free nitrogen atmosphere and somewhat slower cooling is used during the annealing instead of air. The surprizingly high values of ηff,α obtained for both annealing procedures indicates a definite lack of unique correlation between η and stopping power (∼103 and 2 × 104 MeV ·g-1 cm2 for 4 MeV α-particles and 252Cf fission fragments respectively stopping in LiF). On the other hand, modified TST calculations which determine η via a convolution of the charge carrier concentration around the HCP track with the dose-TL response generated from low energy electrons are in good agreement with the experimental results.

Original languageEnglish
Pages (from-to)519-525
Number of pages7
JournalNuclear Instruments and Methods
Issue number2-3
StatePublished - 15 Aug 1981

ASJC Scopus subject areas

  • General Medicine


Dive into the research topics of 'Relative thermoluminescent response of LiF-TLD to 252Cf fission fragments'. Together they form a unique fingerprint.

Cite this