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HK: Fachverband Physik der Hadronen und Kerne

HK 61: Instrumentation XIV

HK 61.3: Talk

Thursday, March 14, 2024, 16:30–16:45, HBR 14: HS 1

A beam position detector for the Mainz Microtron MAMI — •Jannik Petersen — Institut für Kernphysik Mainz

The topic of this contribution is the development and construction of a beam position detector designed for MAMI, which can also be used at other accelerator facilities. In contrast to conventional beam telescopes, the detector is to be placed in the beam pipe and can be moved perpendicular to the beam. This makes it possible to measure the beam invasively only when necessary. The aim is to realize a compact and cost-efficient detector in a manageable development time, which determines the position of the beam with a precision of <  50  µm in the coordinate system of a respective experiment. Therefore, where possible, it is based on adapted standard components as well as parts and techniques developed for other experiments. The PANDA luminosity detector and the Mu3e experiment have a major influence here. At the heart of the detector are three layers of silicon pixel sensors (HV-MAPS), which can be thinned down to 50  µm. The concepts and status of cooling, mechanical implementation, and sensor readout will be presented.

Keywords: Beam Monitor; Pixel Sensor; HV-MAPS; Tracking; Detector