Fast-Neutron Bombardment of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Ni</mi></mrow><mrow><mn>64</mn></mrow></msup></mrow></math></span> and the Decay of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Fe</mi></mrow><mrow><mn>61</mn></mrow></msup></mrow></math></span>

H. A. Grench; K. L. Coop; H. O. Menlove

doi:10.1103/PhysRev.161.1118

Fast-Neutron Bombardment of ${Ni}^{64}$ and the Decay of ${Fe}^{61}$

H. A. Grench, K. L. Coop, and H. O. Menlove

Phys. Rev. 161, 1118 – Published 20 September 1967

Abstract

A 6.15±0.06-min activity, which has been assigned to the decay of ${Fe}^{61}$ , has been produced as the result of bombardment of nickel enriched in ${Ni}^{64}$ with 15-19-MeV neutrons. The decay scheme has been studied by $β$ , $γ$ , $β - γ$ , and $γ - γ$ counting techniques using plastic scintillators, NaI(Tl) crystals, and a Ge(Li) detector. Evidence was found for levels in ${Co}^{61}$ at 1.028±0.005, 1.206±0.005, 1.327±0.005, 1.650±0.015, and 1.995±0.020 MeV.

Received 1 May 1967

DOI:https://doi.org/10.1103/PhysRev.161.1118

Authors & Affiliations

H. A. Grench, K. L. Coop^*, and H. O. Menlove^†

Lockheed Palo Alto Research Laboratory, Palo Alto, California

^*Present address: Department of Nuclear Physics, Research School of Physical Sciences, Australian National University, Canberra.
^†Present address: Los Alamos Scientific Laboratory, University of California, Los Alamos, New Mexico.

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Vol. 161, Iss. 4 — September 1967

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