Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 35: Elektronik
T 35.3: Vortrag
Dienstag, 20. März 2018, 17:00–17:15, Z6 - SR 1.005
FLEX cable design for the HGTD detector at ATLAS — •Maria Soledad Robles Manzano1,2, Andrea Brogna2, and Lucia Masetti1,2 — 1Institut für Physik, Johannes-Gütenberg Universität Mainz — 2Exzellenzcluster PRISMA, Johannes-Gütenberg Universität Mainz
The High Granularity Timing Detector (HGTD), proposed for the ATLAS Phase-2 Upgrade, is designed to improve the pile-up mitigation in the ATLAS endcaps at the HL-LHC. The detector will cover a pseudorapidity range between 2.4 and 4.0 and a high granularity is required to provide a time resolution of 30 ps for minimun-ionizing particles. It will be made of Low Gain Avalanche Detectors (LGAD) with a transverse granularity of 1.3 x 1.3 mm2, and bump-bonded to ASIC chips in individual modules of 20x40 mm2. A flexible PCB (FLEX cable) is designed to readout and distribute power to each individual module with specific requirements that include both geometric and electrical constraints such as a 300 µm thickness, a high-speed rate of 1.28 Gbps and High Voltage (HV) distribution which should not interfere with the data transmission lines. This talk will cover the design of the first FLEX cable prototype as well as the planned tests for signal integrity and HV insulation in order to characterise the perfomance.