Neutron resonance spectroscopy of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>107</mn></mrow></msup></mrow></math></span>Ag and <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>109</mn></mrow></msup></mrow></math></span>Ag

L. Y. Lowie; J. D. Bowman; B. E. Crawford; P. P. J. Delheij; T. Haseyama; J. N. Knudson; A. Masaike; Y. Matsuda; G. E. Mitchell; S. I. Penttila; H. Postma; N. R. Roberson; S. J. Seestrom; E. I. Sharapov; S. L. Stephenson; Y.-F. Yen; V. W. Yuan

doi:10.1103/PhysRevC.56.90

Neutron resonance spectroscopy of $^{107}$ Ag and $^{109}$ Ag

L. Y. Lowie, J. D. Bowman, B. E. Crawford, P. P. J. Delheij, T. Haseyama, J. N. Knudson, A. Masaike, Y. Matsuda, G. E. Mitchell, S. I. Penttila, H. Postma, N. R. Roberson, S. J. Seestrom, E. I. Sharapov, S. L. Stephenson, Y.-F. Yen, and V. W. Yuan

Phys. Rev. C 56, 90 – Published 1 July 1997

Abstract

Parity violation has been observed in a number of previously unreported neutron resonances in silver. Analysis of these parity violation data requires improved neutron resonance spectroscopy. The neutron total cross section for natural silver was measured for $E_{n} = 10$ –800 eV with the time-of-flight method at the Los Alamos Neutron Scattering Center. The neutron capture reaction was studied with both a natural silver target and a highly enriched sample (98.29%) of $^{107}$ Ag. A total of 38 previously unreported resonances were observed. The combination of the two measurements allowed assignment of the newly observed resonances to $^{107}$ Ag or to $^{109}$ Ag. Resonance parameters were determined for almost all of the neutron resonances observed.

Received 3 February 1997

DOI:https://doi.org/10.1103/PhysRevC.56.90

Authors & Affiliations

L. Y. Lowie¹, J. D. Bowman³, B. E. Crawford⁴, P. P. J. Delheij⁶, T. Haseyama⁷, J. N. Knudson³, A. Masaike⁷, Y. Matsuda⁷, G. E. Mitchell¹, S. I. Penttila³, H. Postma⁸, N. R. Roberson⁴, S. J. Seestrom³, E. I. Sharapov⁹, S. L. Stephenson¹, Y.-F. Yen³, and V. W. Yuan³

¹North Carolina State University, Raleigh, North Carolina 27695-8202
²Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308
³Los Alamos National Laboratory, Los Alamos, New Mexico 87545
⁴Duke University, Durham, North Carolina 27708
⁵Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308
⁶TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
⁷Physics Department, Kyoto University, Kyoto 606-01, Japan
⁸Delft University of Technology, Delft, 2600 GA, The Netherlands
⁹Joint Institute for Nuclear Research, 141980 Dubna, Russia

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Vol. 56, Iss. 1 — July 1997

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