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Proceedings Paper

A position- and time-sensitive photon-counting detector with delay-line read-out
Author(s): Ottmar Jagutzki; Volker Dangendorf; Ronald Lauck; Achim Czasch; James Milnes
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Paper Abstract

We have developed image intensifier tubes with delay-anode read-out for time- and position-sensitive photon counting. The timing precision is better than 1 ns with 1000x1000 pixels position resolution and up to one megacounts/s processing rate. Large format detectors of 40 and 75 mm active diameter with internal helical-wire delay-line anodes have been produced and specified. A different type of 40 and 25 mm tubes with semi-conducting screen for image charge read-out allow for an economic and robust tube design and for placing the read-out anodes outside the sealed housing. Two types of external delay-line anodes, i.e. pick-up electrodes for the image charge, have been tested. We present tests of the detector and anode performance. Due to the low background this technique is well suited for applications with very low light intensity and especially if a precise time tagging for each photon is required. As an example we present the application of scintillator read-out in time-of-flight (TOF) neutron radiography. Further applications so far are Fluorescence Life-time Microscopy (FLIM) and Astronomy.

Paper Details

Date Published: 31 May 2007
PDF: 11 pages
Proc. SPIE 6585, Optical Sensing Technology and Applications, 65851C (31 May 2007); doi: 10.1117/12.721933
Show Author Affiliations
Ottmar Jagutzki, Univ. Frankfurt (Germany)
Volker Dangendorf, Physikalisch-Technische Bundesanstalt (Germany)
Ronald Lauck, Physikalisch-Technische Bundesanstalt (Germany)
Achim Czasch, Univ. Frankfurt (Germany)
James Milnes, Photek Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 6585:
Optical Sensing Technology and Applications
Francesco Baldini; Jiri Homola; Robert A. Lieberman; Miroslav Miler, Editor(s)

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