Author/Authors :
Garty، نويسنده , , Shchemelinin، نويسنده , , S and Breskin، نويسنده , , A and Chechik، نويسنده , , R and Assaf، نويسنده , , G and Orion، نويسنده , , I and Bashkirov، نويسنده , , V and Schulte، نويسنده , , R and Grosswendt، نويسنده , , B، نويسنده ,
Abstract :
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.
