Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/102183
Type: Artigo de periódico
Title: Spontaneous-fission Decay Constant Of 238u Measured By Nuclear Track Techniques Without Neutron Irradiation
Author: Guedes S.
Hadler N. J.C.
Sarkis J.E.S.
Oliveira K.M.G.
Kakazu M.H.
Iunes P.J.
Saiki M.
Tello S. C.A.
Paulo S.R.
Abstract: A value of the decay constant for spontaneous fission of 238U, λf, determined by particle-track detector techniques, is presented. The main source of systematic error in fission-track measurements of λf, the so called "neutron dosimetry", has been avoided. Instead of calibrating the neutron source and the usual mica detector through tracks of 235U fission induced by thermal neutrons, spontaneous-fission tracks and alpha-particle tracks of 238U and 242Pu were used. A value of λf=(8.66± 0.38)·10-17 y-1 has been obtained.
Editor: 
Rights: fechado
Identifier DOI: 10.1023/A:1026218411554
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0142122507&partnerID=40&md5=22ba68a8ec75f1c8012ae889491741dd
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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