The performance of a novel ion-counting nanodosimeter

G. Garty, S. Shchemelinin, A. Breskin, R. Chechik, G. Assaf, I. Orion, V. Bashkirov, R. Schulte, B. Grosswendt

Research output: Contribution to journalArticlepeer-review

81 Scopus citations


We present the performance of a novel device conceived for measuring minute energy deposits in a low-density gas, capable of operating in various radiation fields, including in an accelerator environment. The ion-counting nanodosimeter provides a precise measurement of the ionization distribution deposited within a small wall-less gas volume, modeling nanometer-scales of condensed matter, e.g. the DNA molecule. We describe the instrument and its data acquisition system. The results of systematic studies with low-energy alpha particles, protons and carbon ions are compared to model simulations; they demonstrate the capabilities and indicate the limitations of this novel technique.

Original languageEnglish
Pages (from-to)212-235
Number of pages24
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1-2
StatePublished - 11 Oct 2002
Externally publishedYes


  • Ion counting
  • Nanodosimetry
  • Radiation effects

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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