Frankfurt 2014 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 50: Instrumentierung

HK 50.3: Vortrag

Donnerstag, 20. März 2014, 17:30–17:45, HZ 8

High Voltage Monolithic Active Pixel Sensors for the PANDA Luminosity Detector* — •Tobias Weber, Florian Feldbauer, Prometeusz Jasinski, Heinrich Leithoff, Christof Motzko, and Miriam Fritsch for the PANDA collaboration — Helmholtz-Institut Mainz and Institut für Kernphysik, Universität Mainz

The PANDA-Experiment will be part of the new FAIR accelerator center at Darmstadt, Germany. It is a fixed target experiment using a antiproton beam with very high resolution for precision measurements. For a variety of measurements like energy-scans the precise determination of the luminosity is needed.

The luminosity detector will determine the luminosity by measuring the angular distribution of elastically scattered antiprotons very close to the beam axis (3-8 mrad). To reconstruct antiproton tracks four layers of thinned silicon sensors with smart pixel readout on chip (HV-MAPS) will be used. Those sensors are currently under development by the Mu3e-collaboration.

In the talk the concept of the luminosity measurement is shortly introduced before a summary of the status of HV-MAP prototypes and recent test beam results are presented.

*promoted by BMBF, DFG and HGF