Emergency OSL dosimetry with commonplace materials |
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| Institution: | 1. Çukurova University, Art Sciences Faculty, Physics Department, 01330 Balcal?, Sar?çam, Adana, Turkey;2. Ad?yaman University, Engineering Faculty, Department of Electrical Electronic Engineering, 02040 Ad?yaman, Turkey;3. Iskenderun Technical University, Department of Engineering Science, Hatay, Turkey;4. Mersin University, Art Sciences Faculty, Physics Department, Mersin, Turkey;5. Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA;6. Hasan Kalyoncu University, Faculty of Engineering, Department of Electrical and Electronics Engineering, Gaziantep, Turkey;1. Physics Department, Oklahoma State University, Stillwater, OK, 74078, USA;2. Division of Radiation Safety and Security, Paul Scherrer Institut (PSI), Villigen PSI, Switzerland;3. Physics Department, Federal University of Sergipe, São Cristovão, SE, 49100-000, Brazil;4. St. Francis Hospital, 6161 South Yale Ave, Tulsa, OK, 74136, USA;1. Helmholtz Zentrum München- German Research Center for Environmental Health, Institute of Radiation Medicine, D-85764, Neuherberg, Germany;2. Independent Researcher, Augsburg, Germany;3. Department of Physics, University of Ibadan, Ibadan, Nigeria;4. Urals Research Center for Radiation Medicine, Chelyabinsk, Russia;5. Pacific Northwest National Laboratory, Richland, WA, USA;1. ÇukurovaUniversity, Physics Department, Balcal?, 01330, Sar?çam, Adana, Turkey;2. Çukurova University, Chemistry Department, Balcal?, 01330, Sar?çam, Adana, Turkey;3. ?skenderun Technical University, Department of Engineering Science, Hatay, Turkey;4. Ad?yaman University, Department of Electrical Electronic Engineering, 02040, Ad?yaman, Turkey;5. Mersin University, Physics Department, Mersin, Turkey;6. Middle East Technical University, Department of Physics, 06800, Ankara, Turkey |
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| Abstract: | Several commonplace materials were studied as possible emergency optically stimulated luminescence (OSL) dosimeters. The materials included: paper currency (banknotes) and coins of different denomination and from different countries; plastic cards of different types (credit and debit cards, driver's license cards, membership cards, etc.), parts and details of clothing and shoes as well as samples of different fabrics.The samples displayed significant variability in their OSL properties. They differed in the intensity of the initial ‘native’ signal; the bleaching time of the OSL signal; the sensitivity to light of different wavelengths; the fading rate of OSL signals, etc. Procedures of OSL analysis were proposed to account for this variety.Values of the minimum measurable dose (MMD) were below 2 Gy for most tested samples if OSL measurements were conducted within one week of exposure and the samples were kept in dark since exposure (except samples of shoes that were kept under environmental light).The OSL signals in banknotes appear to originate from compounds containing aluminum, silicon, calcium and titanium – these elements were detected using X-ray microanalysis. For coins, the source of the OSL signals is speculated to be small particles of quartz, which were detected on the coins' surfaces. The X-ray microanalysis spectra from fabrics and shoes revealed sodium, aluminum, titanium, iron and nickel as elements that appeared to be responsible for the radiation sensitivity of those samples.It was concluded that, under certain constrained circumstances, paper and metallic money, personal plastic cards, clothing and shoes could be used as emergency OSL dosimeters in triage applications. |
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| Keywords: | Luminescence Emergency dosimetry Triage OSL Banknotes Coins Plastic cards Clothing Shoes Polymers Radiation sensitivity Fading |
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