Neutron transmission and capture measurements and analysis of Dy from 0.01 to 550 eV

• Published in: Progress in nuclear energy (New series) 2017-01, Vol.94, p.126-132
• Main Authors: Block, R.C., Bishop, M.C., Barry, D.P., Leinweber, G., Ballad, R.V., Burke, J.A., Rapp, M.J., Danon, Y., Youmans, A., Drindak, N.J., Kim, G.N., Kang, Y.-R., Lee, M.W., Landsberger, S.
• Format: Article
• Language: English
• Subjects: Absorption cross sections; Bayesian analysis; Dy164 resonance integral; Dy164 thermal cross section; Dysprosium; Isotopes; Measurement; Neutrons; Nuclear capture; Resonance parameters
• ISSN: 0149-1970; 1878-4224
• DOI: 10.1016/j.pnucene.2016.09.019

Neutron capture and transmission measurements were carried out from 0.01 to over 600 eV on both natural Dy and samples highly enriched in 164Dy. These data were analyzed for resonance parameters utilizing the SAMMY Bayesian analysis code to simultaneously fit both the capture and transmission data. Parameters were obtained for 17 resonances in Dy isotopes up to 18 eV and for the 164Dy resonances near 147, 450 and 540 eV. The thermal capture cross section (at 0.0253 eV) and capture resonance integral were determined for 164Dy. •Transmission and capture measurements from thermal to 550 eV on Dy and 164Dy samples.•Bayesian analysis provided resonance parameters from the combined measurements.•Liquid samples were used to obtain uniformly thin 164Dy samples.•The 164Dy thermal cross section and resonance integral were obtained from these measurements.•Improvements were made for the 5.45 eV 162Dy resonance parameters.