Slowing-down of relativistic heavy ions and its influence on angular distributions of Vavilov-Cherenkov radiation

E. I. Fiks, Yu L. Pivovarov, O. V. Bogdanov, H. Geissel, C. Scheidenberger, J. Ruzicka

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We performed calculations of Vavilov-Cherenkov radiation (VChR) angular distributions from relativistic heavy ions (RHI) taking account of their slowing-down in a radiator. The results of calculations show that the slowing-down of RHI in radiator leads to specific broadening of VChR ring thus forming specific VChR angular distribution which is different compared to well-known Tamm-Frank distribution. The key parameters which change drastically the VChR angular distribution from RHI are: energy, charge and mass of an ion; emission wave length and corresponding refractive index; stopping power and radiator thickness. The theory developed has been applied to the analysis of the earlier experiments (1996-2001) devoted to studies of the VChR angular distribution from Au RHI beam with energies ∼0.9 GeV/u at SIS-18 heavy ion accelerator (GSI, Darmstadt, Germany).

Original languageEnglish
Pages (from-to)51-54
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Publication statusPublished - 5 Jul 2013



  • Cherenkov radiation
  • Energy loss
  • Relativistic heavy ions

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

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