Experimental Approaches to Studying the Fission Process Using the Surrogate Reaction Technique

被引:2
|
作者
Burke, J. T. [1 ]
Ressler, J. J. [1 ]
Escher, J. E. [1 ]
Scielzo, N. D. [1 ]
Thompson, I. J. [1 ]
Henderson, R. [1 ]
Gostic, J. [1 ]
Bernstein, L. [1 ]
Bluel, D. [1 ]
Weideking, M. [1 ]
Meot, V. [2 ]
Roig, O. [2 ]
Phair, L. W. [3 ]
Hatarik, R. [3 ]
Munson, J. [3 ,4 ]
Angell, C. [4 ]
Goldblum, B. [4 ]
Beausang, C. W. [5 ]
Ross, T. [5 ]
Hughes, R. [5 ]
Aiche, M. [6 ]
Barreau, C. [6 ]
Cappelan, N. [6 ]
Czajkowski, S. [6 ]
Hass, B. [6 ]
Jurado, B. [6 ]
Mathieu, L. [6 ]
Companis, I. [6 ,7 ]
机构
[1] Lawrence Livermore Natl Lab, Dept Phys, Livermore, CA 94550 USA
[2] Commissariat Energie Atom, Serv Phys Nucl, Bruyeres Le Chatel, Arpajon, France
[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA
[4] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA
[5] Univ Richmond, Dept Nucl Phys, Richmond, VA 23173 USA
[6] Univ Bordeaux 1, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France
[7] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest 077125, Romania
关键词
ND2010; Nuclear data; Surrogate reaction; (238)Pu; Fission; Cross section;
D O I
10.3938/jkps.59.1892
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Over the past several years, Lawrence Livermore National Laboratory has been developing the surrogate technique to study the properties of fission and perform precision cross section measurements. The surrogate technique allows nuclear physicists to measure previously unattainable compound-nuclear cross sections of nuclei currently one to two nucleons away from a stable or long lived (similar to 10,000 y) nucleus. The goal of the surrogate technique is to create the same excited compound nucleus as is produced in a specific desired direct neutron reaction, study the decay channels and extract the cross section of choice; (n,gamma), (n,2n) or (n,f). This may be accomplished via an inelastic scattering reaction (e.g. (p,p'), (d,d'), ((3)He,(3)He')), a neutron transfer reaction (e.g. (d,p), ((18)O,(16)O)), or a pick-up reaction such as ((3)He,(4)He). To measure the decay channels (gamma-ray or fission) we have constructed the Silicon Telescope Array for Reactions Studies (STARS), the Livermore BERkeley Array for Collaborative Experiments (LIBERACE) and the HYDRA array for precision fission studies. Preliminary results from a recent (238)Pu(n,f) measurement are presented.
引用
收藏
页码:1892 / 1895
页数:4
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