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Proceedings Paper

Position and time sensitive photon counting detector with image charge delay-line readout
Author(s): Achim Czasch; Volker Dangendorf; James S. Milnes; Sven Schössler; Ronald Lauck; Uwe Spillmann; Jon R. Howorth; Ottmar Jagutzki
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Paper Abstract

We have developed single photon counting image intensifier tubes combining position and time information read-out with at least 500x500 pixels and sub-nanosecond time resolution. This image intensifier type uses a resistive screen instead of a phosphor screen and the image charge pickup anode is placed outside the sealed tube. We present a novel delay-line anode design which allows for instance detecting simultaneously arriving pairs of photons. Due to the very low background this technique is suited for applications with very low light intensity and especially if a precise time tagging for each photon is required. We show results obtained with several anode types on a 25 mm image intensifier tube and a 40 mm open-face MCP detector and discuss the performance in neutron radiography, e.g. for homeland security, and the prospects for applications like Fluorescence Life-time Imaging Microscopy (FLIM), astronomy and X-ray polarimetry.

Paper Details

Date Published: 15 October 2007
PDF: 12 pages
Proc. SPIE 6771, Advanced Photon Counting Techniques II, 67710W (15 October 2007); doi: 10.1117/12.736935
Show Author Affiliations
Achim Czasch, Univ. Frankfurt (Germany)
RoentDek GmbH (Germany)
Volker Dangendorf, Physikalisch-Technische Bundesanstalt (Germany)
James S. Milnes, Photek, Ltd. (United Kingdom)
Sven Schössler, Johann Wolfgang Goethe-Univ. Frankfurt am Main (Germany)
Ronald Lauck, Physikalisch-Technische Bundesanstalt (Germany)
Uwe Spillmann, RoentDek GmbH (Germany)
Jon R. Howorth, Photek Ltd. (United Kingdom)
Ottmar Jagutzki, Univ. Frankfurt (Germany)
RoentDek GmbH (Germany)

Published in SPIE Proceedings Vol. 6771:
Advanced Photon Counting Techniques II
Wolfgang Becker, Editor(s)

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