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Title: Direct Determination of Fission-Barrier Heights Using Light-Ion Transfer in Inverse Kinematics

Journal Article · · Physical Review Letters
 [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [3]; ORCiD logo [5];  [3]; ORCiD logo [5];  [6]; ORCiD logo [6]; ORCiD logo [7]; ORCiD logo [3]; ORCiD logo [3];  [6]; ORCiD logo [8]
  1. Univ. of Manchester (United Kingdom)
  2. Univ. of Manchester (United Kingdom); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  3. Argonne National Laboratory (ANL), Argonne, IL (United States)
  4. Argonne National Laboratory (ANL), Argonne, IL (United States); Florida State Univ., Tallahassee, FL (United States)
  5. Univ. of York (United Kingdom)
  6. Univ. of Liverpool (United Kingdom)
  7. Chalmers University of Technology, Gothenburg (Sweden)
  8. Louisiana State Univ., Baton Rouge, LA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)

We demonstrate a new technique for obtaining fission data for nuclei away from β stability. These types of data are pertinent to the astrophysical r process, crucial to a complete understanding of the origin of the heavy elements, and for developing a predictive model of fission. These data are also important considerations for terrestrial applications related to power generation and safeguarding. Experimentally, such data are scarce due to the difficulties in producing the actinide targets of interest. The solenoidal-spectrometer technique, commonly used to study nucleon-transfer reactions in inverse kinematics, has been applied to the case of transfer-induced fission as a means to deduce the fission-barrier height, among other variables. The fission-barrier height of 239U has been determined via the 238U(d, pf) reaction in inverse kinematics, the results of which are consistent with existing neutron-induced fission data indicating the validity of the technique.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); United Kingdom Science and Technology Facilities Council (STFC); Knut and Alice Wallenberg Foundation (KAW); USDOE
Grant/Contract Number:
AC02-06CH11357; ST/P004598/1; ST/V001027/1; ST/P004423/1; ST/V001116/1; ST/R004056/1; ST/T004797/1; ST/N00244X/1; KAW 2020.0076
OSTI ID:
1974501
Alternate ID(s):
OSTI ID: 2350571
Journal Information:
Physical Review Letters, Vol. 130, Issue 20; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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