SMuK 2023 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 45: Instrumentation XIII
HK 45.1: Vortrag
Mittwoch, 22. März 2023, 17:30–17:45, SCH/A.101
Photon Detection with THGEMs — •Thomas Klemenz1, Laura Fabbietti1, Piotr Gasik2, Roman Gernhäuser1, and Berkin Ulukutlu1 — 1Techinsche Universität München, Garching, Germany — 2FAIR/GSI GmbH, Darmstadt, Germany
Traditional devices for photon detection like the Photomultiplier Tube or more recent technologies such as Silicon Photomultipliers are not easily scalable and rather cost-intensive.. Therefore, especially with large area experiments in mind it is exciting to investigate new ways of detecting photons. In this project we are taking the approach of combining a photosensitive material with a Thick GEM (THGEM) to produce a gaseous photon detector. THGEMs are robust, low-cost devices, which can be easily implemented in large area applications. One side of the THGEM is coated with a photosensitive material and placed within an electrical field. Photons captured by the active surface lead to a release of electrons which drift into the THGEM hole where they undergo avalanche multiplication due to strong electric fields applied. Below the THGEM an anode is reading out the amplified electron signal. Depending on the gain of the THGEM this could enable single photon detection. We want to study the potential of this approach while trying different photosensitive materials. Ultimately, we aim to measure visible wavelength photons and to provide a low-cost, large area solution for neutrino observation in water and ice environments. In the talk the current status of the project is discussed.
This work is funded by the BMBF Verbundforschung (05P21WOCA1 ALICE) and the DFG Sachmittel FA 898/5-1.