The FlashCam Camera for the Medium-Sized Telescopes of CTA

4 Jun 2014, 17:00
20m
Graanbeurszaal (Beurs van Berlage)

Graanbeurszaal

Beurs van Berlage

Oral Experiments: 2b) Astrophysics and Space Instrumentation II.b Astro & Space

Speaker

Quirin Weitzel (Max-Planck-Institut fuer Kernphysik Heidelberg)

Description

The Cherenkov Telescope Array (CTA) is the next generation ground-based instrument for the detection of cosmic gamma-rays with energies from about 20 GeV up to several hundred TeV. It is envisaged to be comprised of large-, medium- and small-sized telescopes (23m, 10-12m and 4m mirror aperture, respectively). Within the scope of the FlashCam project, a novel camera for the medium-sized telescopes of CTA has been developed. Its integration follows a horizontal architecture, where the photon detector plane (hosting photosensors and preamplifiers) is a self-contained unit interfaced through analog signal transmission cables to crates containing the readout electronics. The FlashCam design features fully digital readout and trigger electronics based on commercial ADCs and FPGAs as key components. In this way different type of digitization schemes and trigger logics can be implemented, without exchanging any hardware. The data transfer from the camera to a server is Ethernet-based, and processing rates (including event building) up to about 2 GBytes/sec have been achieved. Together with the dead-time free signal digitization this allows to operate at trigger rates up to several tens of kHz. Extensive tests and measurements with a 144-pixel setup (equipped with photomultipliers and electronics) have been performed, the results of which will be reported. In addition, the status of the preparations for a 1764-pixel prototype with full-scale mechanics and cooling system will be presented.

Primary author

Quirin Weitzel (Max-Planck-Institut fuer Kernphysik Heidelberg)

Co-authors

Aaron Manalaysay (Physik-Institut, Universitaet Zuerich) Achim Vollhardt (Physik-Institut, Universitaet Zuerich) Adam Marszalek (Jagiellonian University Krakow) Arno Gadola (Physik-Institut, Universitaet Zuerich) Christian Bauer (Max-Planck-Institut fuer Kernphysik Heidelberg) Christian Foehr (Max-Planck-Institut fuer Kernphysik Heidelberg) Christoph Kalkuhl (Institut fuer Astronomie und Astrophysik, Universitaet Tuebingen) Christoph Tenzer (Institut fuer Astronomie und Astrophysik, Universitaet Tuebingen) Daniel Florin (Physik-Institut, Universitaet Zuerich) Felix Eisenkolb (Institut fuer Astronomie und Astrophysik, Universitaet Tuebingen) Frank Garrecht (Max-Planck-Institut fuer Kernphysik Heidelberg) Gerd Puehlhofer (Institut fuer Astronomie und Astrophysik, Universitaet Tuebingen) German Hermann (Max-Planck-Institut fuer Kernphysik Heidelberg) Ira Jung (Physikalisches Institut, Universitaet Erlangen) Jerzy Kasperek (AGH University of Science and Technology Krakow) Jerzy Koziol (Jagiellonian University Krakow) Krzysztof Winiarski (AGH University of Science and Technology Krakow) Krzysztof Zietara (Jagiellonian University Krakow) Marcin Rupinski (AGH University of Science and Technology Krakow) Olaf Reimer (Institut fuer Astro und Teilchenphysik, Universitaet Innsbruck) Oleg Kalekin (Physikalisches Institut, Universitaet Erlangen) Pawel Rajda (AGH University of Science and Technology Krakow) Robert Lahmann (Physikalisches Institut, Universitaet Erlangen) Stefan Steiner (Physik-Institut, Universitaet Zuerich) Thomas Kihm (Max-Planck-Institut fuer Kernphysik Heidelberg) Thomas Schanz (Institut fuer Astronomie und Astrophysik, Universitaet Tuebingen) Thomas Schwab (Max-Planck-Institut fuer Kernphysik Heidelberg) Ueli Straumann (Physik-Institut, Universitaet Zuerich) Wojciech Romaszkan (AGH University of Science and Technology Krakow)

Presentation Materials