Tuff rock as a new thermoluminescent material for gamma dosimetry

Aljawharh Almuqrin, Cairo Soliman, Kamel ELShokrof, Dalal Aloraini

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Background and Objective: Radiation dosimetry related to nuclear accidents or terrorist events suffers from disadvantages such as the time required for sample preparation and variation in the sensitivity of the samples. The objectives of this study were to investigate the thermoluminescence (TL) properties of natural tuff and to evaluate its use for gamma radiation dose measurements in retrospective dosimetry. Materials and Methods: Tuff is lithified volcanic ash and is produced by explosive volcanic eruptions. A sample was ground into powder and treated with HCl, H2O2, sodium oxalate and alcohol. TL measurements were performed using Harshaw TL equipment. Gamma irradiation was administered with a 60Co source. Results: The as-received sample shows one main TL peak, while radiation and heat treatment induced 3 others. The response to gamma irradiation is linear for small doses and sub-linear for high doses. Batch homogeneity was calculated and found to meet the IEC recommendations. Storage measurements showed that fading stopped after 7 days. Conclusion: Indications are that this material is a potential candidate for dose reconstruction in retrospective, dosimetry and industrial applications under certain restricted conditions.

Original languageEnglish
Pages (from-to)126-133
Number of pages8
JournalAsian Journal of Scientific Research
Volume11
Issue number1
DOIs
Publication statusPublished - 1 Jan 2018

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Volcanic Eruptions
Radioactive Hazard Release
Background Radiation
Radiometry
Oxalic Acid
Gamma Rays
Powders
Hot Temperature
Alcohols
Radiation
Equipment and Supplies

Keywords

  • Fading
  • Gamma
  • Homogeneity
  • Response
  • Thermoluminescence
  • Tuff

Cite this

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Tuff rock as a new thermoluminescent material for gamma dosimetry. / Almuqrin, Aljawharh; Soliman, Cairo; ELShokrof, Kamel; Aloraini, Dalal.

In: Asian Journal of Scientific Research, Vol. 11, No. 1, 01.01.2018, p. 126-133.

Research output: Contribution to journalArticleResearchpeer-review

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