High- and very-high-dose dosimetry using silicate minerals. (January 2015)

• Record Type: Journal Article
• Authors: Watanabe, Shigueo; Cano, Nilo F.; Carmo, Lucas S.; Barbosa, Renata F.; Chubaci, Jose F.D.
• Is Part Of: Radiation measurements. Volume 72(2015:Jan.)
• Page Start: 66
• Page End: 69
• Publication Date: 2015-01
• Subjects: High dose -- Dosimetry -- TL -- Silicates; Nuclear emulsions -- Periodicals; Particle tracks (Nuclear physics) -- Periodicals; Thermoluminescence -- Periodicals; Cosmic rays -- Periodicals; Radiation -- Measurement -- Periodicals; Radiometry -- Periodicals; Radiation Monitoring -- Periodicals; Émulsions nucléaires -- Périodiques; Particules (Physique nucléaire) -- Traces -- Périodiques; Thermoluminescence -- Périodiques; Rayonnement cosmique -- Périodiques; Radiométrie -- Périodiques; 539.77
• DOI: 10.1016/j.radmeas.2014.11.004
• Languages: English
• ISSNs: 1350-4487

Abstract

Abstract: In the present study, certain natural silicate minerals such as aquamarine (AB), morganite (PB), goshenite (WB), white jadeite (JW), green jadeite (JG), pink tourmaline (PT) and two varieties of jadeite-like quartz, denoted here by JQ1 and JQ2, were investigated using the thermoluminescence technique to evaluate their potential for use as very-high- and high-dose dosimeters. These minerals respond to high doses of γ-rays of up to 1000 kGy and often to very high doses of up to 3000 kGy. The TL response of these minerals may be considered to be satisfactory for applications in high-dose dosimetry. Investigations of electron paramagnetic resonance and optically stimulated luminescence dosimetry are in progress. Highlights: The TL dose responses of eight different natural silicate minerals have been investigated. All minerals show a more or less linear thermoluminescence signal with gamma ray dose. The saturation dose varies from 5 kGy up to 1000 kGy.