ESR response of phenol compounds for dosimetry of gamma photon beams

MARRALE, M; LONGO, A; PANZECA, S; GALLO, S; PRINCIPATO, F; TOMARCHIO, EA; PARLATO, A; Buttafava, A; Dondi, D; Zeffiro, A

doi:10.1016/j.nimb.2014.08.015

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In the present paper we investigate the features of IRGANOX_ 1076 phenols as a material for electron spin resonance (ESR) dosimetry. We experimentally analyzed the ESR response of pellets of IRGANOX 1076 phenols irradiated with 60Co photons. The best experimental parameters (modulation amplitude and microwave power) for dosimetric applications have been obtained. The dependence of ESR signal as function of c dose is found to be linear in the dose range studied (12–60 Gy) and the lowest measurable dose is found to be of the order of 1 Gy. The signal after irradiation is very stable in the first thirty days. From the point of view of the tissue equivalence, these materials have mass energy absorption coefficient values comparable with those of soft tissue.

Data di pubblicazione:	2014
Titolo:	ESR response of phenol compounds for dosimetry of gamma photon beams
Autori:	MARRALE, Maurizio LONGO, Anna PANZECA, Salvatore GALLO, Salvatore PRINCIPATO, Fabio TOMARCHIO, Elio Angelo PARLATO, Aldo Buttafava, A Dondi, D Zeffiro, A. mostra contributor esterni nascondi contributor esterni
Citazione:	Marrale, M., Longo, A., Panzeca, S., Gallo, S., Principato, F., Tomarchio, E., et al. (2014). ESR response of phenol compounds for dosimetry of gamma photon beams. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION B, BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 339, 15-19.
Rivista:	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION B, BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Digital Object Identifier (DOI):	10.1016/j.nimb.2014.08.015
Abstract:	In the present paper we investigate the features of IRGANOX_ 1076 phenols as a material for electron spin resonance (ESR) dosimetry. We experimentally analyzed the ESR response of pellets of IRGANOX 1076 phenols irradiated with 60Co photons. The best experimental parameters (modulation amplitude and microwave power) for dosimetric applications have been obtained. The dependence of ESR signal as function of c dose is found to be linear in the dose range studied (12–60 Gy) and the lowest measurable dose is found to be of the order of 1 Gy. The signal after irradiation is very stable in the first thirty days. From the point of view of the tissue equivalence, these materials have mass energy absorption coefficient values comparable with those of soft tissue.
URL:	http://www.sciencedirect.com/science/article/pii/S0168583X1400723X
Settore Scientifico Disciplinare:	Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin)
Appare nelle tipologie:	1.01 Articolo in rivista

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