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Proceedings Paper

New DEPFET structures: concepts, simulations, and experimental results
Author(s): G. Lutz; S. Herrmann; P. Lechner; M. Porro; R. H. Richter; L. Strüder; J. Treis
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Paper Abstract

Two new DEPFET concepts are presented motivated by potential applications in adaptive optics and in synchrotron radiation experiments at the future Free Electron X-ray Laser (XFEL) in Hamburg. The gatable DEPFET structure allows the selection of signal charges arriving in a predefined time interval. Charges produced outside this gate interval are lead to a sink electrode while charge collected already is protected and kept for later delayed readout. In synchrotron radiation experiments one faces the challenge of being sensitive enough for single X-ray photons in some parts of the detector while on other regions a very large charge due to the superposition of many X-rays has to be measured. A DEPFET with strongly non-linear characteristics combines naturally excellent energy resolution with high dynamic range, large charge handling capability and high read out speed.

Paper Details

Date Published: 22 July 2008
PDF: 11 pages
Proc. SPIE 7021, High Energy, Optical, and Infrared Detectors for Astronomy III, 70210Y (22 July 2008); doi: 10.1117/12.787839
Show Author Affiliations
G. Lutz, PNSensor GmbH (Germany)
S. Herrmann, Max-Planck-Institut für extraterrestrische Physik (Germany)
P. Lechner, PNSensor GmbH (Germany)
M. Porro, Max-Planck-Institut für extraterrestrische Physik (Germany)
R. H. Richter, Max-Planck-Institut für Physik (Germany)
L. Strüder, Max-Planck-Institut für extraterrestrische Physik (Germany)
J. Treis, Max-Planck-Institut für extraterrestrische Physik (Germany)

Published in SPIE Proceedings Vol. 7021:
High Energy, Optical, and Infrared Detectors for Astronomy III
David A. Dorn; Andrew D. Holland, Editor(s)

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