Studies of fission hindrance in hot nuclei

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The study of dissipation in hot nuclear systems is a subject of great current interest. Different experimental techniques and observables have recently been utilized which axe sensitive to the dissipation in large-scale shape rearrangements, such as those encountered in heavy-ion fusion, fission and quasifission reactions. To study the dynamical shape evolution of hot nuclear systems it is necessary to measure properties (or processes) that are sensitive to the time-scale on which these shape changes occur. Several methods, such as the emission of prescission particles (n, p and {alpha}) and {gamma}-rays, have been used to study the fission time-scale in relation ... continued below

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13 p.

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Back, B.B.; Blumenthal, D.J. & Davids, C.N. June 1, 1995.

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Description

The study of dissipation in hot nuclear systems is a subject of great current interest. Different experimental techniques and observables have recently been utilized which axe sensitive to the dissipation in large-scale shape rearrangements, such as those encountered in heavy-ion fusion, fission and quasifission reactions. To study the dynamical shape evolution of hot nuclear systems it is necessary to measure properties (or processes) that are sensitive to the time-scale on which these shape changes occur. Several methods, such as the emission of prescission particles (n, p and {alpha}) and {gamma}-rays, have been used to study the fission time-scale in relation to these (well known) decay processes. Recently it has also been pointed out that measurements of the evaporation residue cross section, which are very sensitive to the competition between particle emission and fission, probe the fission time-scale. This paper will present recent studies of the evaporation residue cross section in the {sup 32}S+{sup 184} system carried out at the ATLAS Fragment Mass Analyzer, including the methods for obtaining absolute cross sections.

Physical Description

13 p.

Notes

INIS; OSTI as DE95013390

Source

  • International workshop on physics with recoil separators and detector arrays, New Delhi (India), 30 Jan - 2 Feb 1995

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  • Other: DE95013390
  • Report No.: ANL/PHY/CP--86140
  • Report No.: CONF-950194--1
  • Grant Number: W-31-109-ENG-38
  • DOI: 10.2172/91919 | External Link
  • Office of Scientific & Technical Information Report Number: 91919
  • Archival Resource Key: ark:/67531/metadc794652

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • June 1, 1995

Added to The UNT Digital Library

  • Dec. 19, 2015, 7:14 p.m.

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  • Feb. 1, 2016, 1:53 p.m.

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Back, B.B.; Blumenthal, D.J. & Davids, C.N. Studies of fission hindrance in hot nuclei, report, June 1, 1995; Illinois. (digital.library.unt.edu/ark:/67531/metadc794652/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.