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Title: Formation and distribution of fragments in the spontaneous fission of 240 Pu

Abstract

We use the stochastic Langevin framework to simulate the nuclear evolution after the system tunnels through the multidimensional potential barrier. For a representative sample of different initial configurations along the outer turning-point line, we define effective fission paths by computing a large number of Langevin trajectories. We extract the relative contribution of each such path to the fragment distribution. We then use nucleon localization functions along effective fission pathways to analyze the characteristics of prefragments at prescission configurations.

Authors:
 [1];  [2];  [3];  [4]
  1. Variable Energy Cyclotron Centre, Kolkata (India). Physics Group; Homi Bhabha National Inst., Mumbai (India). BARC Training School Complex; Michigan State Univ., East Lansing, MI (United States). NSCL/FRIB Lab.
  2. Michigan State Univ., East Lansing, MI (United States). NSCL/FRIB Lab.
  3. Michigan State Univ., East Lansing, MI (United States). FRIB Lab., Dept. of Physics and Astronomy
  4. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Nuclear and Chemical Science Division
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Michigan State Univ., East Lansing, MI (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1435755
Alternate Identifier(s):
OSTI ID: 1413814; OSTI ID: 1438733
Report Number(s):
LLNL-JRNL-745894
Journal ID: ISSN 2469-9985; PRVCAN
Grant/Contract Number:  
NA0002847; NA0002574; SC0008511; AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 96; Journal Issue: 6; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Sadhukhan, Jhilam, Zhang, Chunli, Nazarewicz, Witold, and Schunck, Nicolas. Formation and distribution of fragments in the spontaneous fission of 240Pu. United States: N. p., 2017. Web. doi:10.1103/PhysRevC.96.061301.
Sadhukhan, Jhilam, Zhang, Chunli, Nazarewicz, Witold, & Schunck, Nicolas. Formation and distribution of fragments in the spontaneous fission of 240Pu. United States. doi:10.1103/PhysRevC.96.061301.
Sadhukhan, Jhilam, Zhang, Chunli, Nazarewicz, Witold, and Schunck, Nicolas. Mon . "Formation and distribution of fragments in the spontaneous fission of 240Pu". United States. doi:10.1103/PhysRevC.96.061301. https://www.osti.gov/servlets/purl/1435755.
@article{osti_1435755,
title = {Formation and distribution of fragments in the spontaneous fission of 240Pu},
author = {Sadhukhan, Jhilam and Zhang, Chunli and Nazarewicz, Witold and Schunck, Nicolas},
abstractNote = {We use the stochastic Langevin framework to simulate the nuclear evolution after the system tunnels through the multidimensional potential barrier. For a representative sample of different initial configurations along the outer turning-point line, we define effective fission paths by computing a large number of Langevin trajectories. We extract the relative contribution of each such path to the fragment distribution. We then use nucleon localization functions along effective fission pathways to analyze the characteristics of prefragments at prescission configurations.},
doi = {10.1103/PhysRevC.96.061301},
journal = {Physical Review C},
number = 6,
volume = 96,
place = {United States},
year = {2017},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 7 works
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Figures / Tables:

FIG. 1 FIG. 1: Top: the density of Langevin trajectories and the corresponding EFPs on the two-dimensional PES in the (Q20;Q30) plane. The outer turning-point line (OTL) and the scission line are shown by dashed and dash-dotted lines, respectively. Bottom: Eleven EFPs considered in this work.

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.