The use of the U(n,f) reaction dosimetry in the determination of the lambda(f) value through fission-track techniques

dc.creatorGuedes, S
dc.creatorHadler, JC
dc.creatorIunes, PJ
dc.creatorZuniga, A
dc.creatorTello, CA
dc.creatorPaulo, SR
dc.date2003
dc.date36892
dc.date2014-11-17T20:11:47Z
dc.date2015-11-26T16:46:16Z
dc.date2014-11-17T20:11:47Z
dc.date2015-11-26T16:46:16Z
dc.date.accessioned2018-03-28T23:32:04Z
dc.date.available2018-03-28T23:32:04Z
dc.identifierNuclear Instruments & Methods In Physics Research Section A-accelerators Spectrometers Detectors And Associated Equipment. Elsevier Science Bv, v. 496, n. 1, n. 215, n. 221, 2003.
dc.identifier0168-9002
dc.identifierWOS:000180478000019
dc.identifier10.1016/S0168-9002(02)01630-3
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/72621
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/72621
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/72621
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1274464
dc.descriptionA new set of determinations of the decay constant for spontaneous fission of (238)U, lambda(f), using mica-uranium sandwich and thin films of natural uranium is presented. A value of lambda(f) (8.37+/-0.17) x 10(-17) a(-1) has been determined. The use of uranium-based neutron dosimetry for the measurement of lambda(f) through fission-track techniques is discussed. Particularly, the lambda(f) measurement by Roberts et al. (Phys. Rev. 174 (1968) 4847), is analyzed, showing that the value obtained by these authors (7.03 x 10(-17) a(-1)) underestimated lambda(f). It is concluded that the dosimetry based on U(n,f) reaction does not support lambda(f) value around 7 x 10(-17)a(-1) determined by various authors using mica-uranium sandwich. (C) 2002 Elsevier Science B.V. All rights reserved.
dc.description496
dc.description1
dc.description215
dc.description221
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationNuclear Instruments & Methods In Physics Research Section A-accelerators Spectrometers Detectors And Associated Equipment
dc.relationNucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subject(238)U
dc.subjectspontaneous fission
dc.subjectdecay constant
dc.subjectneutron dosimetry
dc.subjectthin films
dc.subjectNeutron Dosimetry
dc.subjectDecay Constant
dc.subjectDetection Efficiency
dc.subjectU-238
dc.subjectUranium
dc.subjectCalibration
dc.subjectFragments
dc.subjectSsntd
dc.subjectAge
dc.titleThe use of the U(n,f) reaction dosimetry in the determination of the lambda(f) value through fission-track techniques
dc.typeArtículos de revistas


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