Neutron resonance spectroscopy of 104Pd, 105Pd, and 110Pd
2002
We have measured neutron resonances in the palladium isotopes 104, 105, and 110 for neutron energies from 1 to 2100 eV. Many new p-wave resonances have been observed. Their neutron widths and, in several cases, the radiative widths were measured. The average level spacings and the s-wave and p-wave neutron strength functions were determined. The time-of-flight method was used for both neutron total cross section measurements and total (n,γ) reaction yield measurements at the pulsed spallation neutron source of Los Alamos Neutron Science Center. Well established resonance spectroscopy for these isotopes is essential for the analysis of parity violation data that were recently measured in palladium. Disciplines Atomic, Molecular and Optical Physics | Physics Authors J D. Bowman, D A. Smith, Bret E. Crawford, T Haseyama, C A. Grossmann, A Masaike, Y Matsuda, G E. Mitchell, S I. Penttila, N R. Roberson, S J. Seestrom, E I. Sharapov, Sharon L. Stephenson, V W. Yuan, and A M. Sukhovoj This article is available at The Cupola: Scholarship at Gettysburg College: http://cupola.gettysburg.edu/physfac/7 Neutron resonance spectroscopy of Pd, Pd, and Pd D. A. Smith,* J. D. Bowman, B. E. Crawford, C. A. Grossmann, T. Haseyama, A. Masaike, Y. Matsuda, G. E. Mitchell, S. I. Penttila, N. R. Roberson, S. J. Seestrom, E. I. Sharapov, S. L. Stephenson, A. M. Sukhovoj, and V. W. Yuan Los Alamos National Laboratory, Los Alamos, New Mexico 87545 Duke University, Durham, North Carolina 27708 and Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308 North Carolina State University, Raleigh, North Carolina 27695-8202 and Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308 Physics Department, Kyoto University, Kyoto 606-01, Japan Joint Institute for Nuclear Research, RU-141980 Dubna, Russia ~Received 25 August 2000; revised manuscript received 30 August 2001; published 16 January 2002! We have measured neutron resonances in the palladium isotopes 104, 105, and 110 for neutron energies from 1 to 2100 eV. Many new p-wave resonances have been observed. Their neutron widths and, in several cases, the radiative widths were measured. The average level spacings and the s-wave and p-wave neutron strength functions were determined. The time-of-flight method was used for both neutron total cross section measurements and total ~n ,g) reaction yield measurements at the pulsed spallation neutron source of Los Alamos Neutron Science Center. Well established resonance spectroscopy for these isotopes is essential for the analysis of parity violation data that were recently measured in palladium. DOI: 10.1103/PhysRevC.65.024607 PACS number~s!: 25.40.Ny, 24.80.1y, 27.60.1j
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