The High Acceptance Di-Electron Spectrometer (HADES) is operational since the year 2000 and uses a hadron blind RICH detector for electron identification. The HADES-RICH upgrade using Hamamatsu H12700 MAPMTs with DiRICH FEE + Readout The commissioning of the new detector array for GMOS-N marks the final step in upgrading the two GMOS instruments at Gemini North and South with Hamamatsu detectors. The new GMOS-N detector array is expected to provide improved red sensitivity compared to the e2v devices at wavelengths longer than ~900 nm. The Hamamatsu detectors replace the e2v deep depletion devices which had been in operation since 2011. We report on the commissioning of the new Hamamatsu fully-depleted CCDs for GMOS-N, installed in the instrument in February 2017. Scharwaechter, Julia Chiboucas, Kristin Gimeno, German Boucher, Luc White, John Tapia, Eduardo Lundquist, Michael Rippa, Mathew Labrie, Kathleen Murowinski, Richard Lazo, Manuel Miller, Jennifer This paper describes a complete characterization of both models, starting from the standard operating parameters (single photon spectra, average gain, anode uniformity and dark current value), investigating in detail the cross-talk effect among neighbouring pixels and considering the behaviour in critical environment conditions, such as in presence of a static magnetic field up to 100 Gauss, at different operating temperatures and after long exposure to intense light.Ĭommissioning of the new GMOS-N Hamamatsu CCDs A second device version, the R12699, is also available and differs from the former by the absence of the socket. ![]() Hamamatsu provides the H12700 tube with an embedded socket connecting the anodes to the output pins and including an active voltage divider. ![]() Its characteristics make this device suitable for high energy physics applications, such as in Ring Imaging Cherenkov (RICH) detectors. The H12700 is a novel 64-channel 52 Ã- 52 mm2 square Multi-Anode PhotoMultiplier Tube (MaPMT) produced by Hamamatsu. Characterization of the Hamamatsu H12700A-03 and R12699-03 multi-anode photomultiplier tubesĬalvi, M.
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