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  • Al-Adili, AliUppsala universitet,Tillämpad kärnfysik (author)

Neutron-multiplicity experiments for enhanced fission modelling

  • Article/chapterEnglish2017

Publisher, publication year, extent ...

  • 2017-09-13
  • EDP Sciences,2017
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:uu-339390
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-339390URI
  • https://doi.org/10.1051/epjconf/201714604056DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:kon swepub-publicationtype

Notes

  • The nuclear de-excitation process of fission fragments (FF) provides fundamental information for the understanding of nuclear fission and nuclear structure in neutron-rich isotopes. The variation of the prompt-neutron multiplicity, ν(A), as a function of the incident neutron energy (En) is one of many open questions. It leads to significantly different treatments in various fission models and implies that experimental data are analyzed based on contradicting assumptions. One critical question is whether the additional excitation energy (Eexc) is manifested through an increase of ν(A) for all fragments or for the heavy ones only. A systematic investigation of ν(A) as a function of En has been initiated. Correlations between prompt-fission neutrons and fission fragments are obtained by using liquid scintillators in conjunction with a Frisch-grid ionization chamber. The proof-of-principle has been achieved on the reaction 235U(nth,f) at the Van De Graff (VdG) accelerator of the JRC-Geel using a fully digital data acquisition system. Neutrons from 252Cf(sf) were measured separately to quantify the neutron-scattering component due to surrounding shielding material and to determine the intrinsic detector efficiency. Prelimenary results on ν(A) and spectrum in correlation with FF properties are presented.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Tarrío, DiegoUppsala universitet,Tillämpad kärnfysik(Swepub:uu)dieta246 (author)
  • Hambsch, Franz-JosefEuropean Commission, Joint Research Centre, Directorate G, Geel, Belgium (author)
  • Göök, AlfEuropean Commission, Joint Research Centre, Directorate G, Geel, Belgium (author)
  • Jansson, Kaj,1987-Uppsala universitet,Tillämpad kärnfysik(Swepub:uu)kajja598 (author)
  • Solders, Andreas,1976-Uppsala universitet,Tillämpad kärnfysik(Swepub:uu)andso900 (author)
  • Rakopoulos, VasileiosUppsala universitet,Tillämpad kärnfysik(Swepub:uu)vasra115 (author)
  • Gustavsson, CeciliaUppsala universitet,Tillämpad kärnfysik(Swepub:uu)cjo01192 (author)
  • Lantz, Mattias,1971-Uppsala universitet,Tillämpad kärnfysik(Swepub:uu)malan676 (author)
  • Mattera, Andrea,1985-Uppsala universitet,Tillämpad kärnfysik(Swepub:uu)andma258 (author)
  • Oberstedt, StephanEuropean Commission, Joint Research Centre, Directorate G, Geel, Belgium (author)
  • Prokofiev, Alexander V.,1963-Uppsala universitet,Tillämpad kärnfysik(Swepub:uu)alpro677 (author)
  • Sundén, Erik A.Uppsala universitet,Tillämpad kärnfysik(Swepub:uu)erasu959 (author)
  • Vidali, MarzioEuropean Commission, Joint Research Centre, Directorate G, Geel, Belgium (author)
  • Österlund, MichaelUppsala universitet,Tillämpad kärnfysik(Swepub:uu)miost517 (author)
  • Pomp, Stephan,1968-Uppsala universitet,Tillämpad kärnfysik(Swepub:uu)steppomp (author)
  • Uppsala universitetTillämpad kärnfysik (creator_code:org_t)

Related titles

  • In:EPJ Web of Conferences: EDP Sciences9782759890200

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