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Mainz 2014 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 23: DAQ, Trigger, Elektronik 1

T 23.2: Vortrag

Montag, 24. März 2014, 11:15–11:30, GFH 01-731

The Data Handling Processor of the Belle II DEPFET Detector — •Leonard Germic, Tomasz Hemperek, Tetsuichi Kishishita, Hans Krüger, Mikhail Lemarenko, Florian Lütticke, Carlos Marinas, and Norbert Wermes — Physikalisches Institut, Universitaet Bonn, Deutschland

A two layer highly granular DEPFET pixel detector will be operated as the innermost subsystem of the Belle II experiment, at the new Japanese super flavor factory (SuperKEKB). Such a finely segmented system will allow to improve the vertex reconstruction in such ultra high luminosity environment but, at the same time, the raw data stream generated by the 8 million pixel detector will exceed the capability of real-time processing due to its high rate. For this reason a new ASIC, the Data Handling Processor (DHP) is designed to provide full functionality of zero-suppression, data reduction and data transmission at the level of the front-end electronics. In this contribution, the description of the latest prototype chip in TSMC 65 nm technology together with the latest test results including the data processing quality and the signal integrity of the gigabit transmission lines will be presented.

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