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Hardware and software architecture of the upgraded H.E.S.S. cameras

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arxiv 1707.04415 v1 pith:K3NPK72H submitted 2017-07-14 astro-ph.IM hep-ex

Hardware and software architecture of the upgraded H.E.S.S. cameras

classification astro-ph.IM hep-ex
keywords beencamerascomponentsinstalledreadoutreplacedsoftwarearchitecture
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In 2015/16, the photomultiplier cameras of the H.E.S.S. Cherenkov telescopes CT1-4 have undergone a major upgrade. The entire electronics has been replaced, using NECTAr chips for the front-end readout. A new ventilation system has been installed and several auxiliary components have been replaced. Besides this, the internal control and readout software was rewritten from scratch in a modern and modular way. Ethernet technology was used wherever possible to ensure both flexibility, stability and high bandwidth. An overview of the installed components will be given.

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