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Preliminary Study on Electron Paramagnetic Resonance(EPR) Signal Properties of Mobile Phone Components for Dose Estimation in Radiation Accident
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 Title & Authors
Preliminary Study on Electron Paramagnetic Resonance(EPR) Signal Properties of Mobile Phone Components for Dose Estimation in Radiation Accident
Park, Byeong Ryong; Ha, Wi-Ho; Park, Sunhoo; Lee, Jin Kyeong; Lee, Seung-Sook;
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 Abstract
We have investigated the EPR signal properties in 12 components of two mobile phones (LCD, OLED) using electron paramagnetic resonance (EPR) spectrometer in this study.EPR measurements were performed at normal atmospheric conditions using Bruker EXEXSYS-II E500 spectrometer with X-band bridge, and samples were irradiated by gamma-ray source. To identify the presence of radiation-induced signal (RIS), the EPR spectra of each sample were measured unirradiated and irradiated at 50 Gy. Then, dose-response curve and signal intensity variating by time after irradiation were measured. As a result, the signal intensity increased after irradiation in all samples except the USIM plastic and IC chip. Among the samples, cover glass(CG), lens, light guide plate(LGP) and diffusion sheet have shown fine linearity ( > 0.99). Especially, the LGP had ideal characteristics for dosimetry because there were no signal in 0 Gy and high rate of increase in RIS. However, this sample showed weakness in fading. Signal intensity of LGP and Diffusion Sheet decreased by 50% within 72 hours after irradiation, while signals of Cover Glass and Lens were stably preserved during the short period of time. In order to apply rapidly EPR dosimetry using mobile phone components in large-scale radiation accidents, further studies on signal differences for same components of the different mobile phone, fading, pretreatment of samples and processing of background signal are needed. However, it will be possible to do dosimetry by dose-additive method or comparative method using unirradiated same product in small-scale accident.
 Keywords
Radiation accident;Electron spin resonance;Electron paramagnetic resonance;Dosimetry;
 Language
Korean
 Cited by
 References
1.
Committee European de Normalisation(CEN). Detection of irradiated food containing bone, Method by ESR spectroscopy. European Committee for Standardization. EN 1786. 1996.

2.
Committee European de Normalisation(CEN). Detection of irradiated food containing crystalline sugar, Method by ESR spectroscopy. European Committee for Standardization. EN 13708. 2001.

3.
Committee European de Normalisation(CEN). Detection of irradiated food containing cellulose, Method by ESR spectroscopy. European Committee for Standardization. EN 1787. 2000.

4.
International Organization for Standardization (ISO)/American Society for Testing and Materials (ASTM). Practice for use of an alanine-EPR dosimetry system. ISO/ASTM. ISO/ASTM 51607. 2013

5.
International Atomic Energy Agency(IAEA). Use of electron paramagnetic resonance dosimetry with tooth enamel for retrospective dose assessment. IAEA. IAEA-TECDOC-1331. 2002

6.
Swartz HM, Flood AB, Williams BB, Dong R, Swarts SG, He X, Grinberg O, Sidabras J, Demidenko E, Gui J, Gladstone DJ, Jarvis LA, Kmiec MM, Kobayashy K, Lesniewski PN, Marsh SDP, Matthews TP, Nicolalde RJ, Pennington PM, Raynolds T, Salikhov I, Wilcox DE, Zaki BI. Electron Paramagnetic Resonance dosimetry for a large-scale radiation incident. Health Phys. 2012; 103(3):255-267. crossref(new window)

7.
Kinoshita A, Calcina CSG, Sakamoto-Hojo ET, Camparato ML, Picon C, Baffa O. Evaluation of a high dose to a finger from a $^{60}Co$, Health Phys. 2003;84(4):477-482. crossref(new window)

8.
Wu K, Sun CP, Shi YM. Dosimetric properties of watch glass: a potential practical ESR dosemeter for nuclear accidents. Radiat Prot Dosim. 1995;5:223-225

9.
Wu K, Guo L, Cong JB, Sun CP, Hu JM, Zhou ZS, Wang S, Zhang Y, Zhang X, Shi YM Researches and applications of ESR dosimetry for radiation accident dose. Radiat Prot Dosim. 1998; 77(1/2):65-67. crossref(new window)

10.
Longo A, Basile S, Brai M, Marrale M, Tranchina L. ESR response of watch glasses to proton beams. Nucl Instrum Meth A. 2010;B 268:2712- 2718.

11.
Trompier F, Della Monaca S, Fattibene P, Clairand I. EPR dosimetry of glass substrate of mobile phone LCDs. Radiat Meas. 2011;46:827-831.

12.
Fattibene P, Trompier F, Wieser A, Brai M, Ciesielski B, Angelis CD, Monaca SD, Garcia T, Gustafsson H, Hole EO, Juniewicz M, Krefft K, Longo A, Leveque P, Lund E, Marrale M, Michalec B, Mierzwinska G, Rao JL, Romanyukha AA, Tuner H. EPR dosimetry intercomparison using smart phone touch screen glass. Radiat Environ Biophs. 2014;53:311-320.

13.
Teixeira MI, Ferraz GM, Caldas LVE. EPR dosimetry using commercial glasses for high gamma doses. Appl Radiat Isotopes. 2005;62:365-370. crossref(new window)