Münster 2017 – scientific programme

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T: Fachverband Teilchenphysik

T 118: Trigger und DAQ 3

T 118.2: Talk

Thursday, March 30, 2017, 17:05–17:20, VSH 05

The Data Handling Processor of the Belle II DEPFET Detector — •Leonard Germic, Tomasz Hemperek, Hans Krüger, Carlos Marinas, Jochen Dingfelder, and Norbert Wermes for the Belle II collaboration — Universität Bonn

A two layer highly granular DEPFET pixel detector will be oper- ated as the innermost subsystem of the Belle II experiment, at the new Japanese super flavor factory (SuperKEKB). Such a finely seg- mented 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 ca- pability of real-time processing due to its high frame rate, considering the limited material budged and strict space constrains. For this rea- son a new ASIC, the Data Handling Processor (DHP) is designed to provide data processing at the level of the front-end electronics, such as zero-suppression and common mode correction. Additional feature of the Data Handling Processor is the control block, providing con- trol signals for the on-module ASICs used in the pixel detector. In this contribution, the description of the latest chip revision in TSMC 65 nm technology together with the latest test results of the interface functionality tests are presented.