Focal plane detectors for the Advanced Gamma-Ray Imaging System (AGIS)

A. N. Otte, K. Byrum, G. Drake, A. Falcone, S. Funk, D. Horan, R. Mukherjee, A. Smith, H. Tajima, R. G. Wagner, D. A. Williams

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

The Advanced Gamma-Ray Imaging System (AGIS) is a concept for the next generation observatory in groundbased very high energy gamma-ray astronomy. Design goals are ten times better sensitivity, higher angular resolution, and a lower energy threshold than existing Cherenkov telescopes. Simulations show that a substantial improvement in angular resolution may be achieved if the pixel diameter is reduced to the order of 0.05 deg, i.e. two to three times smaller than the pixel diameter of current Cherenkov telescope cameras. At these dimensions, photon detectors with smaller physical dimensions can be attractive alternatives to the classical photomultiplier tube (PMT). Furthermore, the operation of an experiment with the size of AGIS requires photon detectors that are among other things more reliable, more durable, and possibly higher efficiency photon detectors. Alternative photon detectors we are considering for AGIS include both silicon photomultipliers (SiPMs) and multi-anode photomultipliers (MAPMTs). Here we present results from laboratory testing of MAPMTs and SiPMs along with results from the first incorporation of these devices into cameras on test bed Cherenkov telescopes.

Original languageEnglish (US)
Pages (from-to)866-869
Number of pages4
JournalAIP Conference Proceedings
Volume1085
DOIs
StatePublished - Apr 13 2009
Event4th International Meeting on High Energy Gamma-Ray Astronomy - Heidelberg, Germany
Duration: Jul 7 2008Jul 11 2008

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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