ENDL Ti and V evaluation updates

Brown, D ; Hoffman, R ; Kelley, K ; Beck, B

Lawrence Livermore National Laboratory

关键词: Neutrons;    Cross Sections;    72 Physics Of Elementary Particles And Fields;    Resonance;    73 Nuclear Physics And Radiation Physics;   

DOI  :  10.2172/883609
RP-ID  :  UCRL-TR-215151
RP-ID  :  W-7405-ENG-48
RP-ID  :  883609

美国|英语

来源: UNT Digital Library

【 摘 要 】

We need ''full'' evaluations for the isotopes of Ti and V found naturally. We mean ''full'' in the sense that we wish to have data suitable for transporting neutrons through the material. In particular, we focus on: (1) {sigma}(E) for largest cross sections (n,elas), (n,n'), (n,2n), etc.; and (2) d{sigma}(E)/d{Omega} for (n,elas), (n,n'[i]). For the data to be useful, we want the cross section sets and outgoing particle distributions to form a self-consistent set and to have good agreement with experimental data where possible. Also, if possible, we wish: P(E,E') for all outgoing particles; P(E, {mu}) for all outgoing particles; and adequate resonance region. In this note, we will summarize existing evaluations for Ti and V and present several strategies for updating all Ti and V isotopes for immediate insertion in ENDL and for eventual submission to ENDF/B-VII. We adopt one of these strategies and describe where the data is posted for customer use.