Share Email Print
cover

Proceedings Paper

The DEPFET-based focal plane detectors for MIXS on BepiColombo
Author(s): J. Treis; L. Andricek; F. Aschauer; K. Heinzinger; S. Herrmann; T. Lauf; P. Lechner; G. Lutz; P. Majewski; M. Porro; J. Reiffers; R. H. Richter; G. Schaller; M. Schnecke; F. Schopper; H. Soltau; A. Stefanescu; L. Strüder; G. de Vita
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

X-ray detectors based on arrays of DEPFET macropixels, which consist of a silicon drift detector combined with a detector/amplifier structure DEPFET as readout node, provide a convenient and flexible way to adapt the pixel size of a focal plane detector to the resolving power of any given X-ray optical system. Macropixels combine the traditional benefits of an SDD, like scalability, arbitrary geometry and excellent QE even in the low energy range, with the advantages of DEPFET structures: Charge storage capability, near Fano-limited energy resolution, low power consumption and high speed readout. Being part of the scientific payload of ESA's BepiColombo mission, the MIXS instrument will be the first instrument to make use of DEPFET macropixel based FPA detectors in space. MIXS will perform a complete planetary X-ray fluorescence analysis of Mercury's crust with high spectral and spatial resolution. MIXS will contain two focal plane detectors consisting of a 64 × 64 macropixel matrix with 300 × 300 μm2 pixel size. The main challenges for the instrument are the difficult radiation and thermal environment around Mercury, requiring high speed readout and sophisticated thermal management to reduce the impact of thermally generated leakage current within an irradiated detector. Dedicated VLSI integrated readout electronics has been developed for MIXS: a fast, radiation hard, low power, high voltage switch circuit to control the device, and a low noise, high speed amplifier/shaper IC. Detector assemblies have been built, electrical screening tests for the flight models and spectroscopical qualification tests are in progress.

Paper Details

Date Published: 2 July 2010
PDF: 12 pages
Proc. SPIE 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV, 77420S (2 July 2010); doi: 10.1117/12.856886
Show Author Affiliations
J. Treis, Max-Planck-Institut Halbleiterlabor (Germany)
Max-Planck-Institut für Sonnensystemforschung (Germany)
L. Andricek, Max-Planck-Institut Halbleiterlabor (Germany)
Max-Planck-Institut für Physik (Germany)
F. Aschauer, Max-Planck-Institut Halbleiterlabor (Germany)
Max-Planck-Institut für extraterrestrische Physik (Germany)
K. Heinzinger, PNSensor GmbH (Germany)
S. Herrmann, Max-Planck-Institut Halbleiterlabor (Germany)
Max-Planck-Institut für extraterrestrische Physik (Germany)
T. Lauf, Max-Planck-Institut für extraterrestrische Physik (Germany)
Max-Planck-Institut Halbleiterlabor (Germany)
P. Lechner, PNSensor GmbH (Germany)
G. Lutz, PNSensor GmbH (Germany)
P. Majewski, PNSensor GmbH (Germany)
M. Porro, Max-Planck-Institut Halbleiterlabor (Germany)
Max-Planck-Institut für extraterrestrische Physik (Germany)
J. Reiffers, Max-Planck-Institut Halbleiterlabor (Germany)
Max-Planck-Institut für extraterrestrische Physik (Germany)
R. H. Richter, Max-Planck-Institut Halbleiterlabor (Germany)
Max-Planck-Institut für Physik (Germany)
G. Schaller, Max-Planck-Institut Halbleiterlabor (Germany)
Max-Planck-Institut für extraterrestrische Physik (Germany)
M. Schnecke, Max-Planck-Institut Halbleiterlabor (Germany)
Max-Planck-Institut für Physik (Germany)
F. Schopper, Max-Planck-Institut Halbleiterlabor (Germany)
Max-Planck-Institut für extraterrestrische Physik (Germany)
H. Soltau, PNSensor GmbH (Germany)
A. Stefanescu, Max-Planck-Institut Halbleiterlabor (Germany)
Johannes Gutenberg Univ. Mainz (Germany)
L. Strüder, Max-Planck-Institut Halbleiterlabor (Germany)
Max-Planck-Institut für extraterrestrische Physik (Germany)
G. de Vita, Max-Planck-Institut Halbleiterlabor (Germany)
Max-Planck-Institut für extraterrestrische Physik (Germany)


Published in SPIE Proceedings Vol. 7742:
High Energy, Optical, and Infrared Detectors for Astronomy IV
Andrew D. Holland; David A. Dorn, Editor(s)

© SPIE. Terms of Use
Back to Top