A detector for track-nanodosimetry

In this paper, we describe a gas counter able to measure electron cluster distributions in nanometric sized sites. We designed a system of electrodes that is able to collect electrons from a nanometric wall-less sensitive volume and to transfer them to a counter that detects single electrons. Measur...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2002-05, Vol.484 (1), p.312-326
Main Authors: Nardo, L.De, Alkaa, A, Khamphan, C, Conte, V, Colautti, P, Ségur, P, Tornielli, G
Format: Article
Language:English
Subjects:
Gas detectors
Track-nanodosimetry
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Summary:In this paper, we describe a gas counter able to measure electron cluster distributions in nanometric sized sites. We designed a system of electrodes that is able to collect electrons from a nanometric wall-less sensitive volume and to transfer them to a counter that detects single electrons. Measurements of electron collection efficiency in propane gas confirm that we successfully collected electrons from a wall-less sensitive volume, of about 20 mm width, with an average efficiency of more than 20%.
ISSN:0168-9002
1872-9576
DOI:10.1016/S0168-9002(01)01989-1