EPJ Web of Conferences (Dec 2013)

Measurement of fission products β decay properties using a total absorption spectrometer

  • Zakari-Issoufou A.-A.,
  • Porta A.,
  • Fallot M.,
  • Algora A.,
  • Tain J.L.,
  • Valencia E.,
  • Rice S.,
  • Agramunt J.,
  • Äystö J.,
  • Bowry M.,
  • Bui V.M.,
  • Caballero-Folch R.,
  • Cano-Ott D.,
  • Eloma V.,
  • Estévez E.,
  • Farrelly G.F.,
  • Garcia A.,
  • Gelletly W.,
  • Gomez-Hornillos M.B.,
  • Gorlychev V.,
  • Hakala J.,
  • Jokinen A.,
  • Jordan M.D.,
  • Kankainen A.,
  • Kondev F.G.,
  • Martinez T.,
  • Mendoza E.,
  • Molina F.,
  • Moore I.,
  • Perez A.,
  • Podolyak Zs.,
  • Penttilä H.,
  • Regan P.H.,
  • Rissanen J.,
  • Rubio B.,
  • Weber C.

DOI
https://doi.org/10.1051/epjconf/20136201007
Journal volume & issue
Vol. 62
p. 01007

Abstract

Read online

In a nuclear reactor, the β decay of fission fragments is at the origin of decay heat and antineutrino flux. These quantities are not well known while they are very important for reactor safety and for our understanding of neutrino physics. One reason for the discrepancies observed in the estimation of the decay heat and antineutrinos flux coming from reactors could be linked with the Pandemonium effect. New measurements have been performed at the JYFL facility of Jyväskylä with a Total Absorption Spectrometer (TAS) in order to circumvent this effect. An overview of the TAS technique and first results from the 2009 measurement campaign will be presented.