|
|||||
|
|
Transmutation studies using SSNTD and radiochemistry and the associated production of secondary neutrons |
|
| Authors: | R. Brandt M. Ochs J. -S. Wan Th. Schmidt E. -J. Langrock P. Vater J. Adam V. P. Bamblevskij V. Bradnova L. K. Gelovani V. K. Kalinnikov M. I. Krivopustov B. A. Kulakov A. N. Sosnin V. P. Perelygin V. S. Pronskikh V. I. Stegailov V. M. Tsoupko-Sitnikov G. Modolo R. Odoj P. -W. Phiippen J. -C. Adloff F. Pape M. Debeauvais M. Zamani-Valassiadou S. R. Hashemi-Nezhad K. K. Dwivedi S. -L. Guo L. Li Y. -L. Wang B. Wilson |
| Affiliation: | a Kernchemie, FB 15, Philipps-University, D-35032, Marburg, Germany b Joint Institute for Nuclear Research, Dubna 141980, Russia c Forschungszentrum Jülich, FZJ, D-54245, Jülich, Germany d Institute de Recherche Subatomique, University L. Pasteur, F-67037, Strasbourg, France e Physics Department, Aristotle University, Thessaloniki 54006, Greece f Falkiner High Energy Physics Dpt., University of Sydney, Sydney, NSW 2006, Australia g Department of Chemistry, North-Eastern Hill University, Shillong 793003, India h China Institute of Atomic Energy, Beijing 102413, China i Los Alamos National Laboratory, Los Alamos, NM 87545, USA |
| Abstract: | Experiments using 1.5 GeV, 3.7 GeV and 7.4 GeV protons from the Synchrophasotron, LHE, JINR, Dubna, Russia, on extended Pb- and U-targets were carried out using SSNTD and radiochemical sensors for the study of secondary neutron fluences. We also carried out first transmulation studies on the long-lived radwaste nuclei 129I and 237Np. In addition, we carried out computer code simulation studies on these systems using LAHET and DCM/CEM codes. We have difficulties to understand rather large transmutation rates observed experimentally when they are compared with computer simulations. There seems to be a rather fundamental problem understanding the large transmutation rates as observed experimentally in Dubna and CERN, as compared to those theoretical computer simulations mentioned above. |
| Keywords: | Transmutation 129I 237Np enhanced nuclear cross-section |
| 本文献已被 ScienceDirect 等数据库收录！ | |