The Low-Radiation Dosimetry Application of "tris" Lyoluminescence using Electron Paramagnetic Resonance at Low Temperature

Title
The Low-Radiation Dosimetry Application of "tris" Lyoluminescence using Electron Paramagnetic Resonance at Low Temperature
Author(s)
곽진석손필국[손필국]최석원[최석원]김성수[김성수]
Keywords
SINGLE-CRYSTALS; ESR MEASUREMENTS; FREE-RADICALS; SUGAR; SUCROSE; EPR; EMERGENCIES; ALANINE
Issue Date
201209
Publisher
KOREAN MAGNETICS SOC
Citation
JOURNAL OF MAGNETICS, v.17, no.3, pp.172 - 175
Abstract
We present a method for detecting very weak radiation by analyzing the inner structure of irradiated tris (lyoluminescence) materials using electron paramagnetic resonance (EPR) at low temperature. Organic materials have been looked into for use in emergency dosimetry of inhabitants around radiation accidents. However, this technology has never been applied to imperceptible radiation doses (<0.5 Gy) because there is no proper method for detecting the change of inner structure of the subject bombed by very weak radiation at room temperature. Our results show that tris materials can be applied as a radiation detectors of very small radiation doses below 0.05 Gray, if EPR is used at low temperature (130 K <= T <= 270 K). The EPR signal intensity from the irradiated-tris sample had barely faded at all after 1 year.
URI
http://hdl.handle.net/YU.REPOSITORY/27301http://dx.doi.org/10.4283/JMAG.2012.17.3.172
ISSN
1226-1750
Appears in Collections:
이과대학 > 물리학과 > Articles
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