THE POSSIBLE USE OF K2CH2(SO3)2 AND NAHCO2 AS ALTERNATIVE MATERIALS IN EPR RADIATION DOSIMETRY

Frida, U. Ermawati (2009) THE POSSIBLE USE OF K2CH2(SO3)2 AND NAHCO2 AS ALTERNATIVE MATERIALS IN EPR RADIATION DOSIMETRY. Seminar Nasional Penelitian, Pendidikan, dan Penerapan MIPA 2009. ISSN 978-979-96880-5-7

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Abstract

This paper reported the work on electron paramagnetic resonance (EPR) spectrometry of some inorganic materials in radiation dosimetry area. These materials are K2CH2(SO3)2 and NaHCO2. The aim was two: first, to access the EPR spectra measured from the radicals sulphur trioxide anion (SO3-) in γ-irradiated K2CH2(SO3)2 and carbon dioxide anion (CO2-) in γ-irradiated NaHCO2 and to justify whether their performance might approach the similar performance of alanine, a radiation dosimetry standard material. Thus far, the intensity of EPR spectrum of γ-irradiated alanine has been accepted by the International Atomic Energy Agency (IAEA) as a secondary standard for high-dose (10-105Gray) dosimetry. Second, to discover a dosimetry material that sensitive enough to function in the “clinical” dose range, that is below 10 Gray. A radiation plant of 60Co Gammacell 220 operates at room temperature was occupied to irradiate the samples. EPR measurement was carried out by a Varian E-12 EPR spectrometer. By using a readout parameter of the peak-to-peak excursion of the strongest line of the systems, some important findings were noted and reported in this paper.

Item Type: Article
Uncontrolled Keywords: K2CH2(SO3)2, NaHCO2, SO3- and CO2- radicals, EPR, radiation dosimetry.
Subjects: Prosiding > Seminar Nasional Penelitian, Pendidikan, dan Penerapan MIPA 2009
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Jurusan Pendidikan Fisika > Fisika
Depositing User: Eprints
Date Deposited: 04 Mar 2015 02:24
Last Modified: 04 Mar 2015 02:24
URI: http://eprints.uny.ac.id/id/eprint/12252

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