Excitation of the 238Um shape isomer by neutron bombardment

Chatterjee, A. ; Athougies, A. L. ; Kailas, S. ; Mehta, M. K. (1981) Excitation of the 238Um shape isomer by neutron bombardment Physical Review C, 23 (4). pp. 1629-1634. ISSN 0556-2813

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Official URL: http://prc.aps.org/abstract/PRC/v23/i4/p1629_1

Related URL: http://dx.doi.org/10.1103/PhysRevC.23.1629


The cross section for delayed fission for the 238U(n,n')238Um reaction at 14.5 MeV neutron energy has been measured using an annular plastic track detector in a recoil geometry. Seven runs each of 50 hours neutron bombardment were made on a 238U target and each run was followed by a similar irradiation of a 232Th target to determine the background. A statistical model calculation for the isomer excitation function has been made and compared with the present measurement at 14.5 MeV and reported data near the threshold of the reaction.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
Keywords:Nuclear Reactions 238U(n,n'), En=14.5 MeV; Measured σ (Delayed Fission). Calculated σ(Isomer)/σ(Prompt)
ID Code:21517
Deposited On:22 Nov 2010 11:14
Last Modified:03 Jun 2011 08:26

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