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Nanodosimeter based on single ion detection

  • US 7,081,619 B2
  • Filed: 07/20/2004
  • Issued: 07/25/2006
  • Est. Priority Date: 04/27/2000
  • Status: Expired due to Term
First Claim
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1. A nanodosimeter device for detecting positive ions induced in a sensitive gas volume by a radiation field of primary particles, comprising:

  • an ionization chamber filled with a low-pressure density gas including the sensitive gas volume to be irradiated by the radiation field of primary particles, the ionization chamber having an aperture opening;

    an ion counter system connected to the ionization chamber for detecting the positive ions, the ion counter system having an ion counter in communication with the aperture opening;

    a particle tracking system having a position-sensitive detector for detecting the primary particles passing through the sensitive gas volume; and

    a data acquisition system that receives and correlates data from the ion counter system and the particle tracking system.

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