Program - Brookhaven National Laboratory

[1] H. Penttilä, P. Karvonen, T. Eronen et al. Determining isotopic distributions of fission products with
a Penning trap. The European Physical Journal A 44 (2010) 147-168. [2] S.E. Arnell, H.A. Roth, Ö.
Skeppstedt et al. A 2π neutron and γ-ray multiplicity filter for the NORDBALL detection system. Nucl.
Instr. and Meth. in Phys. Res. A 300 (1991) 303-311.
PR 57
Filtered Neutron Capture Cross-Section of 180 Hf
V. H. Tan, Vietnam Agency for Radiation and Nuclear Safety (VARANS), 70-Tran Hung Dao, Ha Noi,
Vietnam. P. N. Son, Nuclear Research Institute, 01-Nguyen Tu Luc, Dalat, Vietnam.
The neutron capture cross-sections of 180 Hf(n,γ) 181 Hf reactions have been measured at filtered neutron
energies of 24, 54, 59, 133 and 148 keV. The mono-energetic neutron beams have been created at the
horizontal channel No.2 of Dalat research reactor by means of the neutron filtered technique. The present
neutron capture cross sections of 180 Hf were obtained relative to the standard capture cross sections of
197 Au by the activation method. The corrections for multi-scattering, self-shielding, and resonance capture
effects by slow neutron background were taken into account. The results of neutron capture cross-section
obtaining in this work are compared with the previous experimental and evaluated values.
Corresponding author: P. N. Son
PR 58
Investigations of the nat Fe(d,x) 55,56,57,58 Co, 52,54 Mn Nuclear Reactions
Mayeen Uddin Khandaker, Department of Physics, University of Malaya, 50603 Kuala Lumpur,
Malaysia. Hiromitsu Haba, Jumpei Kanaya, Nishina Center for Accelerator-Based Science, RIKEN,
Wako,. 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.
We investigated the rmnat Fe(d,x) 55,56,57,58 Co, 52,54 Mn nuclear reactions from their respective threshold up
to initial deuteron energy of 24 MeV. A well established, stacked foil activation technique combined with
HPGe gamma-ray spectrometry were employed to determine the excitation functions. Measured data were
compared with the earlier measurements, and theoretical calculations as well. The possible applications of
the measured data are discussed elaborately.
PR 59
Cross sections of Neutron Reactions (n, p), (n, α), (n, 2n) on Isotopes of Dysprosium, Erbium
and Ytterbium at 14 MeV Neutron Energy
V.A. Plujko, A.O. Kadenko, O.M. Gorbachenko, N.R. Dzysiuk, I.M. Kadenko, G.I. Primenko, Nuclear
Physics Department, Taras Shevchenko National University, Kyiv, Ukraine.
Cross sections of the nuclear reactions (n, p), (n, α), (n, 2n) were measured on isotopes of dysprosium,
erbium and ytterbium at the neutron energies 14.6 ± 0.2 MeV by the use of neutron activation method
[1,2]. They were compared with available experimental data, evaluated nuclear data and the results of
theoretical calculations. Theoretical calculations were performed with the use of EMPIRE and TALYS
codes [3,4] as well as by empirical and semiempirical systematics to make solid estimates of reaction cross
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