Characterisation of an isotopic neutron source: A comparison of conventional neutron detectors and micro-silica glass bead thermoluminescent detectors

Abubakar, Y.M.; Taggart, M.P.; Alsubaie, Abdullah; Alanazi, Abdulaziz; Alyahyawi, Amjad; Lohstroh, A.; Shutt, Arron; Bradley, D.A.

doi:10.1016/j.radphyschem.2016.11.015

Cited by 5 publications

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References 19 publications

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“…Beyond the more typical scientific and kitchen glassware (Pyrex), borosilicates, have recently begun to find interest in thermoluminescnce (TL) dosimetry [7,8]. The boronic content suggests potential for neutron TL dosimeters, with limited studies to-date [9]; similarly, Gedoped silica neutron responses [10,11]. The five main electron and hole traps identified in borosilicate glass compromise non-bridging oxygen centres (boron oxygen hole centres, BOHC), iron (II) and iron (III) centres, silica-and alkali-ions [12,13].…”

Section: Introductionmentioning

confidence: 99%

Low-cost commercial borosilicate glass slides for passive radiation dosimetry

et al. 2020

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For x- and gamma- irradiations delivering entrance doses from 2- up to 1000 Gy to commercial 1.0 mm thick borosilicate glass microscope slides, study has been made of their thermoluminescence yield. With an effective atomic number of 10.6 (approximating bone equivalence), photon energy dependency is apparent in the low x-ray energy range, with interplay between the photoelectric effect and attenuation. As an example, over the examined dose range, at 120 kVp the photon sensitivity has been found to be some 5× that of 60Co gamma irradiations, also with repeatability to within ~1%. The glow-curves, taking the form of a single prominent broad peak, have been deconvolved yielding at best fit a total of five peaks, the associated activation energies and frequency factors also being obtained. The results indicate borosilicate glass slides to offer promising performance as a low-cost passive radiation dosimeter, with utility for both radiotherapy and industrial applications.

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