Characterization of a silicate glass as a high dose dosimeter

K. Farah, A. Mejri, F. Hosni, H. Ben Ouada, P. G. Fuochi, M. Lavalle, A. Kovács

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Commercial silicate glass has been investigated as a possible high dose dosimeter using an UV-vis spectrophotometer. Glass samples were irradiated by 60Co γ rays and the results compared with those obtained with 3.4 and 8.4 MeV electron beams. The irradiated samples showed rapid fading at room temperature immediately after irradiation. In order to improve the stability of absorbance, glass samples were submitted to post-irradiation thermal treatments (150 °C for 20 min). The influences of the dose, type and energy of the ionizing radiation on the fading characteristics and on the response of the irradiated and thermally treated glasses were studied. Dependence of the glass response on the temperature during gamma irradiation in the range -3 to 80 °C is reported. The reproducibility to reuse glass dosimeter by thermal bleaching the radiation induced colour centres at 300 °C for 30 min was also investigated. Calibration curves in the range 0.1-17 kGy were obtained by using in-plant calibration techniques against transfer standard alanine dosimeters in the Tunisian semi-industrial gamma irradiation facility.

Original languageEnglish
Pages (from-to)137-144
Number of pages8
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume614
Issue number1
DOIs
Publication statusPublished - Feb 21 2010

Fingerprint

Dosimeters
Dosimetry
Silicates
dosimeters
silicates
Glass
dosage
glass
Irradiation
irradiation
fading
Calibration
Ultraviolet spectrophotometers
Color centers
reuse
Ionizing radiation
alanine
bleaching
spectrophotometers
Bleaching

Keywords

  • Dosimeter
  • Electron beam
  • Gamma rays
  • In-plant calibration
  • Optical absorption
  • Silicate glass

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

Characterization of a silicate glass as a high dose dosimeter. / Farah, K.; Mejri, A.; Hosni, F.; Ben Ouada, H.; Fuochi, P. G.; Lavalle, M.; Kovács, A.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 614, No. 1, 21.02.2010, p. 137-144.

Research output: Contribution to journalArticle

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