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Cross Sections from 800 MeV Proton Irradiation of Terbium
J. W. Engle, S. G. Mashnik, H. Bach +13
A single terbium foil was irradiated with 800 MeV protons to ascertain the potential for production of lanthanide isotopes of interest in medical, astrophysical, and basic science…
Proton-induced cross sections relevant to production of 225Ac and 223Ra in natural thorium targets below 200 MeV
J. W. Weidner, S. G. Mashnik, K. D. John +13
Cross sections for 223,225Ra, 225Ac and 227Th production by the proton bombardment of natural thorium targets were measured at proton energies below 200 MeV. Our measurements are i…
225-Ac and 223-Ra Production via 800 MeV Proton Irradiation of Natural Thorium Target
J. W. Weidner, S. G. Mashnik, K. D. John +12
Cross sections for the formation of 225,227-Ac, 223,225-Ra, and 227-Th via the proton bombardment of natural thorium targets were measured at a nominal proton energy of 800 MeV. No…
Abrupt Change in Radiation-Width Distribution for 147Sm Neutron Resonances
P. E. Koehler, R. Reifarth, J. L. Ullmann +5
We obtained total radiation widths of s-wave resonances through R-matrix analysis of 147Sm(n,gamma) cross-sections. Distributions of these widths differ markedly for resonances bel…