Mapping the Sensitive Volume of an Ion-Counting Nanodosimeter

Abstract

We present two methods of independently mapping the dimensions of the sensitive volume in an ion-counting nanodosimeter. The first method is based on a calculational approach simulating the extraction of ions from the sensitive volume, and the second method on probing the sensitive volume with 250 MeV protons. Sensitive-volume maps obtained with both methods are compared and systematic errors inherent in both methods are quantified.

27 pages, 8 figures. Submitted to JINST, Jan. 16 2006

Cited by in corpus (2)

• Measurement of track structure parameters of low and medium energy helium and carbon ions in nanometric volumes
• Characterisation of the PTB ion counter nanodosimeter's target volume and its equivalent size in terms of liquid H2O