Aachen 2019 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 91: Elektronik
T 91.5: Vortrag
Donnerstag, 28. März 2019, 17:00–17:15, S02
Development of a CANopen node used as a DCS Controller in the ATLAS pixel detector — •Rizwan Ahmad1, Tobias Fröse2, Michael Karagounis2, Susanne Kersten1, Niklaus Lehmann1, and Christian Zeitnitz1 — 1University of Wuppertal, Wuppertal, Germany — 2University of Applied Sciences and Arts, Dortmund, Germany
A phase-II upgrade is planned for the ATLAS pixel detector. In this context, the ATLAS pixel detector will get a new DCS (Detector Control System) which is being developed at the University of Wuppertal. The DCS system has three main entities. The DCS Computer (Main Control room), the DCS controller chip and the PSPP (Pixel Serial Powering Protection) Chip. The DCS controller communicates to the DCS computer over CAN (Controller Area Network) bus while the DCS controller communicates to the PSPP chip over SCB (Serial Control Bus), a modified version of the I2C. The DCS controller provides a bridge logic which translates messages between two different communication protocols. It will also implement the CANopen standard in hardwired logic. Additionally, it allows for connecting NTCs to monitor temperature. The DCS controller must be radiation hard up to an ionizing dose of > 500Mrad and it must also provide great immunity against SEU (Single Event Upsets). The first prototype of the chip implements the physical layers for the CAN & SCB and the on-chip voltage regulators. In this talk, the results from the first prototype and the logic implemented on an FPGA will be presented.