Heidelberg 2022 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 41: Calorimeters 1
T 41.4: Vortrag
Dienstag, 22. März 2022, 17:00–17:15, T-H26
Test beam results of the Megatile prototype for the CALICE AHCAL — •Anna Rosmanitz for the CALICE-D collaboration — Johannes Gutenberg-Universität Mainz
The CALICE collaboration is developing a highly granular Analog Hadronic Calorimeter (AHCAL) for a future e+e− linear collider.
The current design for the AHCAL consists of small, separately produced scintillator tiles with a size of 3x3 cm2 read out by silicon photomultipliers (SiPM). They are separately wrapped in reflective foil and glued to the boards. In total, the AHCAL is going to consist of around 8 million tiles.
To facilitate the assembly process, a new mechanical design is currently under development. The new concept, called Megatile, is based on a larger scintillator plate, in which the optical separation is obtained via trenches filled with a glue and TiO2 mixture for reflectivity and optical insulation. The Megatile is enclosed with reflective foil, the edges are covered with varnish.
This talk presents the performance in terms of light yield and cross talk of the latest megatile prototype, based on test beam data from recent campaigns at DESY.