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Activities of the Group of DPNC Geneva D. Haas

Activities of the Group of DPNC Geneva D. Haas. Outline AMS Activities Silicon Tracker Electronics GSEM Activities Summary. The AMS02 Experiment. Silicon Tracker - Overview…. 2264 Sensors Doublesided Silicon ~ 6.4m 2 total 1024 channels each

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Activities of the Group of DPNC Geneva D. Haas

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  1. Activities of the Group of DPNC Geneva D. Haas Outline AMS Activities Silicon Tracker Electronics GSEM Activities Summary

  2. The AMS02 Experiment D. Haas, JRA-1 Brainstorming, 3. November 2005, Page 2

  3. Silicon Tracker - Overview… • 2264 Sensors • Doublesided Silicon ~ 6.4m2 total • 1024 channels each • Combined into Ladders of 7-15 sensors, around 200k channels • 8 layers on support planes • 2 external planes - 1 layer each • 3 internal planes - 2 layers each • Goals: • Track charged particles • Measure rigidities p/Z up to O(10 TV)with s(p)/p ~ 1.5 % • Identify elements via dE/dx D. Haas, JRA-1 Brainstorming, 3. November 2005, Page 3

  4. Silicon Tracker - Ladders… Two-sided silicon is used: • K-side (n) has 384 channels • S-side (p) has 640 channels Ladder is reinforced Channels bonded to Frontend D. Haas, JRA-1 Brainstorming, 3. November 2005, Page 4

  5. Silicon Tracker - Frontend… Upilex foil is used on K-side to connect to Frontend Daisy chained on S-side • Frontend produced by IDEas, Norway • AC coupling with PreAmp via Capacitors • 64 channel PreAmp/Shaper • Multiplexed analog readout ~11.000 bonds for 12-sensor ladder D. Haas, JRA-1 Brainstorming, 3. November 2005, Page 5

  6. Silicon Tracker - Electronics… Tracker Data Reduction Board (TDR) • Collect analog data and digitize it • Perform online data compression • Remove Pedestals • Calculate and Remove Common Noise • Search Clusters Tracker Bias Supply (TBS) Power Supply for FrontEnd (TPSFE) D. Haas, JRA-1 Brainstorming, 3. November 2005, Page 6

  7. Silicon Tracker - Qualification… • Testbeams: • CERN SPS 10/2002 (p, ions) • CERN PS 6/2003 (p) • CERN SPS 10/2003 (‘final’ TDR2 boards) • GSI 11/2003 (dedicated ions) • CERN PS 9/2004 (full electronics) • CERN SPS 2006 upcoming D. Haas, JRA-1 Brainstorming, 3. November 2005, Page 7

  8. Silicon Tracker - Qualification… Resolution Trigger to Hold Signal/Noise Charge separation D. Haas, JRA-1 Brainstorming, 3. November 2005, Page 8

  9. Electronics - QA/Space Qualification… Vibration Thermal Stress Thermovacuum EMI/EMC D. Haas, JRA-1 Brainstorming, 3. November 2005, Page 9

  10. Range Telescope with: Measured quantities: Range dE/dx in all layers Stack of silicon PIN diodesand absorber layers Size determined by rateabout 2 cm diameter Full digital readout Active veto outside Passive shield around Veto General Space Environment Monitor D. Haas, JRA-1 Brainstorming, 3. November 2005, Page 10

  11. General Space Environment Monitor Electronics Design GEANT4 Simulations PROTONS Flux Studies Electrons D. Haas, JRA-1 Brainstorming, 3. November 2005, Page 11

  12. To Summarize: • Geneva group has experience with: • Silicon detectors: • Design, assembly, testing • Frontend and readout electronics • Design and construction of prototypes • Prototype-Readout of Mimosa Chip (not mentioned before) • Verification and quality assurance • Space qualification following NASA/ESA standards (lots of paperworks, strict rules!) • Looking forward to contribute to a LC testbench (See Martin’s talk tomorrow) D. Haas, JRA-1 Brainstorming, 3. November 2005, Page 12

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