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dc.contributor.authorChen, F.-
dc.contributor.authorGraeff, Carlos Frederico de Oliveira-
dc.contributor.authorBaffa, O.-
dc.date.accessioned2014-05-20T15:23:00Z-
dc.date.accessioned2016-10-25T17:56:48Z-
dc.date.available2014-05-20T15:23:00Z-
dc.date.available2016-10-25T17:56:48Z-
dc.date.issued2007-11-01-
dc.identifierhttp://dx.doi.org/10.1016/j.nimb.2007.08.097-
dc.identifier.citationNuclear Instruments & Methods In Physics Research Section B-beam Interactions With Materials and Atoms. Amsterdam: Elsevier B.V., v. 264, n. 2, p. 277-281, 2007.-
dc.identifier.issn0168-583X-
dc.identifier.urihttp://hdl.handle.net/11449/33867-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/33867-
dc.description.abstractMinidosimeters of L-alanine and 2-methylalanine (2MA) were prepared and tested as potential candidates for small radiation field dosimetry. To quantify the free radicals created by radiation a K-Band (24 GHz) EPR spectrometer was used. X-rays provided by a 6 MV clinical linear accelerator were used to irradiate the minidosimeters in the dose range of 0.5-30 Gy. The dose-response curves for both radiation sensitive materials displayed a good linear behavior in the dose range indicated with 2MA being more radiation sensitive than L-alanine. Moreover, 2MA showed a smaller LLD (lower limit detection) value. The proposed system minidosimeter/K-Band spectrometer was able to detect 10 Gy EPR spectra with good signal-to-noise ratio (S/N). The overall uncertainty indicates that this system shows a good performance for the detection of dose values of 20 Gy and above, which are dose values typically used in radiosurgery treatments. (c) 2007 Elsevier B.V. All rights reserved.en
dc.format.extent277-281-
dc.language.isoeng-
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectminidosimeterpt
dc.subjectL-alaninept
dc.subject2-methylalaninept
dc.subjectK-Band EPRpt
dc.subjectsmall field dosimetrypt
dc.titleResponse of L-alanine and 2-methylalanine minidosimeters for K-Band (24 GHz) EPR dosimetryen
dc.typeoutro-
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv São Paulo, FFCLRP, Dept Math & Phys, BR-14040901 Ribeirao Preto, SP, Brazil-
dc.description.affiliationState Univ São Paulo, FC, Dept Phys, BR-17033360 Bauru, Brazil-
dc.description.affiliationUnespState Univ São Paulo, FC, Dept Phys, BR-17033360 Bauru, Brazil-
dc.identifier.doi10.1016/j.nimb.2007.08.097-
dc.identifier.wosWOS:000251873600011-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofNuclear Instruments & Methods In Physics Research Section B-beam Interactions With Materials and Atoms-
dc.identifier.orcid0000-0003-0162-8273pt
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