Lifetime and performance of the very latest microchannel-plate photomultipliers

Miehling D, Böhm M, Gumbert K, Krauss S, Lehmann A, Belias A, Dzhygadlo R, Gerhardt A, Lehmann D, Peters K, Schepers G, Schwarz C, Schwiening J, Traxler M, Wolf Y, Schmitt L, Düren M, Hayrapetyan A, Köseoglu I, Schmidt M, Wasem T, Sfienti C, Ali A (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Book Volume: 1049

Article Number: 168047

DOI: 10.1016/j.nima.2023.168047

Abstract

The PANDA experiment at the FAIR facility at GSI will study hadron physics using a high intensity antiproton beam of up to 15 GeV/c momentum to perform high precision spectroscopy. Two DIRC detectors with their image planes residing in an ∼1T magnetic field will be used in the experiment. The only suitable photon detectors for both DIRCs were identified to be Microchannel-Plate Photomultipliers (MCP-PMTs). Since the aging problems of MCP-PMTs were solved recently by coating the MCPs with the so-called ALD-technique (atomic layer depostion) we are investigating devices which are significantly improved with respect to other parameters, as, e.g., the collection efficiency (CE) and the quantum efficiency (QE). The latest generation of MCP-PMTs can reach a detective quantum efficiency DQE=QE⋅CE of 30%. This paper will present the performance of the most advanced 53 × 53 mm² ALD-coated MCP-PMTs from Photonis (8 × 8 and 3 × 100 anodes) and Photek (8 × 8 anodes), also inside the magnetic field. With a picosecond laser and a multi-hit capable DAQ system which allows read out up to 300 pixels simultaneously, parameters like darkcount rate, afterpulse probability and time resolution can be investigated as a function of incident photon position.

Authors with CRIS profile

Involved external institutions

GSI Helmholtzzentrum für Schwerionenforschung GmbH Germany (DE) Justus-Liebig-Universität Gießen Germany (DE) Helmholtz-Institut Mainz (HIM) Germany (DE) Johannes Gutenberg-Universität Mainz (JGU) Germany (DE) Facility for Antiproton and Ion Research in Europe GmbH (FAIR GmbH) Germany (DE)

How to cite

APA:

Miehling, D., Böhm, M., Gumbert, K., Krauss, S., Lehmann, A., Belias, A.,... Ali, A. (2023). Lifetime and performance of the very latest microchannel-plate photomultipliers. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1049. https://dx.doi.org/10.1016/j.nima.2023.168047

MLA:

Miehling, Daniel, et al. "Lifetime and performance of the very latest microchannel-plate photomultipliers." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1049 (2023).

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