Analysis of Doppler-shift attenuation measurements performed with accelerator-produced monoenergetic neutrons

T. Belgya, G. Molnàr, S. W. Yates

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Abstract

Methods employed for the analysis of Doppler-shift attenuation data, obtained for nuclei excited by the inelastic scattering of accelerator-produced monoenergetic neutrons on large samples are presented. Analytical formulas were derived to describe the influence of two major considerations in the analysis. The reaction mechanism for stopping of recoil nuclei was found to increase the attenuation factor F(Τ) calculated with the center-of-mass initial velocity, while geometrical effects tend to decrease F(Τ). It is also shown that the influence of these major factors can be minimized by keeping the neutron energy close to the level threshold and by minimizing the target size. The formulas obtained can be used for any reaction that proceeds via the compound nucleus mechanism and for targets of sufficient size to stop the recoiling nuclei.

Original languageEnglish
Pages (from-to)43-61
Number of pages19
JournalNuclear Physics A
Volume607
Issue number1
DOIs
Publication statusPublished - Sep 9 1996

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Keywords

  • Analysis method
  • DSAM
  • Doppler shift
  • F(Τ)
  • Τ

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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