Program - Brookhaven National Laboratory

Activation Cross Sections of Deuteron Induced Nuclear Reactions on Natural Titanium up
to 24 MeV
Mayeen Uddin Khandaker, Hasan Abu Kassim
Department of Physics, University of Malaya, 50603 Kuala Lumpur, Malaysia
Hiromitsu Haba, Jumpei Kanaya
Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama, 351-0198, Japan.
Naohiko Otuka
Nuclear Data Section, Division of Physical and Chemical Sciences, Department of Nuclear Sciences and
Applications, International Atomic Energy Agency, A-1400 Vienna, Austria
Activation cross-sections of the natTi(d,x)43,44m,44g,46,47,48Sc,48V nuclear processes were measured up
to 24 MeV energy by using a stacked-foil activation technique in combination with HPGe γ-ray spectrometry
using the AVF cyclotron of the RIKEN Wako Institute, Japan. The present data were compared
with the theoretical calculations based on the TALYS and the Empire codes, and found only a partial
agreement among them. The thick target integral yields, i.e., induced radioactivity per unit fluence of
24 MeV deuteron were also deduced from the measured cross-sections of the investigated radionuclides.
Note that, natTi(d,x)48V cross sections find significance in monitoring of deuteron beam from thershold
to 50 MeV. The present experimental results will play an important role in enrichment of the literature
data base for deuteron-induced reactions on natural titanium leading to various applications.
PB 8 5:45 PM
Double Differential Cross Sections for Light-Ion Production from C, O, Si, Fe and Bi
Induced by 175 MeV Quasi-Monoenergetic Neutrons
R. Bevilacqua, S. Pomp, C. Gustavsson, M. Osterlund, V. Simutkin, Department of Physics and
Astronomy, Uppsala University, P.O. Box 516, Uppsala, 75120 Sweden. M. Hayashi, S. Hirayama,
Y. Naitou, Y. Watanabe, Department of Advanced Energy Engineering Science, Kyushu University,
Kasuga, Fukuoka 816-8580, Japan. A. Hjalmarsson, A. Prokofiev, The Svedberg Laboratory, Uppsala
University, P.O. Box 533, Uppsala, 75121 Sweden. U. Tippawan, Plasma and Beam Physics Research
Facility, Chiang Mai University, P.O. Box 217, Chiang Mai, 50200 Thailand. F.-R. Lecolley, N. Marie,
LPC, ENSICAEN, Universite de Caen, CAEN Cedex, 14050 France. S. Leray, J.-C. David, CEA, Centre
de Saclay, IRFU/Service de Physique Nucleaire, Gif-sur-Yvette, 91191 France. S.G. Mashnik, XCP
Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
Accelerator-driven incineration of nuclear waste may play an important role in future scenarios both
in countries investing in the nuclear renaissance and in countries deciding to phase out nuclear energy.
However, development of accelerator-driven systems requires new and more reliable neutron-induced crosssection
data in the intermediate region from 20 to 200 MeV. In this energy region the entire structural
properties of the target nucleus may participate in the nuclear reaction, and the nuclear data community
expressed the need to obtain benchmark experimental data to improve present models and evaluated
nuclear data libraries [1]. A series of neutron induced cross-section measurements at 96 MeV have been
conducted at the The Svedberg Laboratory (TSL), Uppsala [2]. However, experimental data are still
scarce above 100 MeV. In this perspective, we have measured cross-sections for light-ion production in
the interaction of 175 MeV quasi-monoenergetic neutrons with C, O, Si, Fe and Bi. Measurements were
conducted at TSL using the Medley spectrometer [3]. We will present inclusive double-differential crosssections
for production of protons, deuterons, tritons, 3 He and α-particles, at eight angles in the laboratory
system, from 20 deg to 160 deg. Experimental data are compared with model calculations obtained with
INCL4.5-Abla07, TALYS, a modified version of JQMD [4], and MCNP6. All models are able to reproduce
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