Phys. Rev. C 73, 054604 (2006) [8 pages]Deducing the 237U(n,f) cross section using the surrogate ratio methodReceived 25 January 2006; published 5 May 2006 We have deduced the cross section for 237U(n,f) over an equivalent neutron energy range from 0 to 20 MeV using the surrogate ratio method. A 55 MeV 4He beam from the 88 inch cyclotron at Lawrence Berkeley National Laboratory was used to induce fission in the following reactions: 238U(α,α′f) and 236U(α,α′f). The 238U reaction was a surrogate for 237U(n,f), and the 236U reaction was used as a surrogate for 235U(n,f). Scattered α particles were detected in a fully depleted segmented silicon telescope array over an angle range of 35° to 60° with respect to the beam axis. The fission fragments were detected in a third independent silicon detector located at backward angles between 106° and 131°. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.73.054604
DOI:
10.1103/PhysRevC.73.054604
PACS:
24.50.+g, 24.75.+i
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