A NECTAr-based upgrade for the Cherenkov cameras of the H.E.S.S. 12-meter telescopes

The High Energy Stereoscopic System (H.E.S.S.) is one of the three arrays of imaging atmospheric Cherenkov telescopes (IACTs) currently in operation. It is composed of four 12-meter telescopes and a 28-meter one, and is sensitive to gamma rays in the energy range ~ 30 GeV – 100 TeV. The cameras of t...

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Hauptverfasser: Ashton, Terry, Backes, Michael, Balzer, Arnim, Berge, David, Bolmont, Julien, Bonnefoy, Simon, Brun, Francois, Chaminade, Thomas, Delagnes, Eric, Fontaine, Gerard, Füssling, Matthias, Giavitto, Gianluca, Giebels, Berrie, Glicenstein, Jean-Francois, Gräber, Tobias, Hinton, Jim, Jahnke, Albert, Klepser, Stefan, Kossatz, Marko, Kretzschmann, Axel, Lefranc, Valentin, Leich, Holger, Lenain, Jean-Philippe, Lüdecke, Hartmut, Lypova, Iryna, Manigot, Pascal, Marandon, Vincent, Moulin, Emmanuel, Murach, Thomas, De Naurois, Mathieu, Nayman, Patrick, Ohm, Stefan, Penno, Marek, Ross, Duncan, Salek, David, Schade, Markus, Schwab, Thomas, Shiningayamwe, Kleopas, Stegmann, Christian, Steppa, Constantin, Tavernet, Jean-Paul, Thornhill, Julian, Toussnel, Francois, Vincent, Pascal
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container_end_page (2020). doi:10.1016/j.astropartphys.2019.102425
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container_start_page 102425
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creator Ashton, Terry
Backes, Michael
Balzer, Arnim
Berge, David
Bolmont, Julien
Bonnefoy, Simon
Brun, Francois
Chaminade, Thomas
Delagnes, Eric
Fontaine, Gerard
Füssling, Matthias
Giavitto, Gianluca
Giebels, Berrie
Glicenstein, Jean-Francois
Gräber, Tobias
Hinton, Jim
Jahnke, Albert
Klepser, Stefan
Kossatz, Marko
Kretzschmann, Axel
Lefranc, Valentin
Leich, Holger
Lenain, Jean-Philippe
Lüdecke, Hartmut
Lypova, Iryna
Manigot, Pascal
Marandon, Vincent
Moulin, Emmanuel
Murach, Thomas
De Naurois, Mathieu
Nayman, Patrick
Ohm, Stefan
Penno, Marek
Ross, Duncan
Salek, David
Schade, Markus
Schwab, Thomas
Shiningayamwe, Kleopas
Stegmann, Christian
Steppa, Constantin
Tavernet, Jean-Paul
Thornhill, Julian
Toussnel, Francois
Vincent, Pascal
description The High Energy Stereoscopic System (H.E.S.S.) is one of the three arrays of imaging atmospheric Cherenkov telescopes (IACTs) currently in operation. It is composed of four 12-meter telescopes and a 28-meter one, and is sensitive to gamma rays in the energy range ~ 30 GeV – 100 TeV. The cameras of the 12-m telescopes recently underwent a substantial upgrade, with the goal of improving their performance and robustness. The upgrade involved replacing all camera components except for the photomultiplier tubes (PMTs). This meant developing new hardware for the trigger, readout, power, cooling and mechanical systems, and new software for camera control and data acquisition. Several novel technologies were employed in the cameras: the readout is built around the new NECTAr digitizer chip, developed for the next generation of IACTs; the camera electronics is fully controlled and read out via Ethernet using a combination of FPGA and embedded ARM computers; the software uses modern libraries such as Apache Thrift, ØMQ and Protocol buffers. This work describes in detail the design and the performance of the upgraded cameras.
doi_str_mv 10.3204/pubdb-2020-00672
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identifier ISSN: 1873-2852
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issn 1873-2852
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subjects Cherenkov counter: atmosphere
computer: communications
data acquisition
detector: design
electrical engineering
electronics: design
electronics: readout
FPGA
HESS
mechanical engineering
photon: detector
programming
trigger
upgrade
title A NECTAr-based upgrade for the Cherenkov cameras of the H.E.S.S. 12-meter telescopes
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