Energy loss straggling of heavy charged particles in thick silicon absorbers

Nobuyuki Hasebe*, Tadayoshi Doke, Masayuki Fujii, Ken'ichi Fujiki, Toshiki Kajiura, Toshisuke Kashiwagi, Jun Kikuchi, Masanori Kobayashi, Yasushi Mishima, Atsushi Nakamoto, Tomoaki Shino

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The energy loss straggling of heavy charged particles with relatively high energies passing through thick uniform Si detectors (1.0 mm-9.2 mm) has been studied in a wide range of the ratio LI ΔE/E0 where ΔE is the energy loss and E0 is the initial energy of the incident particles. The experimental results are compared with those predicted by straggling theories. It suggests that the measured distributions are in good agreement with those predicted from the Bohr's or Livingston-Bethe's theories when ΔE/E0<0.3 where the distributions are to be Gaussian-symmetric. However, the distributions for larger energy losses deviate from those expected from the theories. It is found that the experimental data are approximately expressed by the modified Stoquert's theory when the ratio ΔE/E0>0.3.

Original languageEnglish
Pages (from-to)92-100
Number of pages9
JournalJournal of the Physical Society of Japan
Issue number1
Publication statusPublished - 1994 Jan
Externally publishedYes


  • Energy loss
  • Heavy ions
  • Silicon
  • Straggling
  • Thick absorber

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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