Mathias Reinecke AHCAL Main Meeting Electronics Integration - Status Mathias Reinecke for the AHCAL developers Mathias Reinecke AHCAL Main Meeting Next prototype: Architecture The goal 1st EUDET Prototype (1st step) Commercial DIF, new mezzan. (CALIB, POWER), 1HBU (later: 6) Mathias Reinecke AHCAL Main Meeting Prototype Tiles Prototype Tile for HBU0 SiPM (0;15) Mirror Alignment Pins (22.5;7.5) (7.5;22.5) (0;0) WLS Mechanics Tile for HBU0 (mm;mm) prototype tiles (structures machined, not moulded) expected very soon. Cutout (~8mm) for cassette construction (done by drilling) (30;30) Mathias Reinecke AHCAL Main Meeting Tiles for EUDET module Standard Tile (moulded) SiPM (0;15) Mirror Alignment Pins (7.5;22.5) (22.5;22.5) (0;0) WLS (mm;mm) Time schedule for moulded tiles not completely clear (end of 2008?). (30;30) Shorted (by 1cm) tile for inter-layer sizes Mathias Reinecke AHCAL Main Meeting HCAL Base Unit (HBU0) Signal IN Power IN Cassette fixation Mechanics Tile Temp. Sensor SPIROC1 Debug Conn. Flexlead Conn. Two signal paths SPIROC2 Prototype Tile Calibration Electr. (LED + Charge Inj) Mathias Reinecke AHCAL Main Meeting HBU0 Interconnection Bended flexlead allows HBU-HBU displacement of 100m. Concern: Bending forces (tension) might disconnect one connector. Expected cost relation flexlead/connector: ~1.5 Under investigation: Flexleads without connectors (IR soldering) (M. Goodrick et al., Cambridge) Flexlead: Rigid below connectors, 4 layers, flexible (polyimide) in between, 2 layers 80-pin connectors Rigid, 40-pin conn. prototype Flexlead Mathias Reinecke AHCAL Main Meeting HBU0 Interconnection II Bended flexlead allows HBU-HBU displacement of 100m. Rigid, 40-pin conn. prototype not in scale! CALIB DIF SPIROC1HBU-HBU HBU-DIF Support Bars (10x10mmcross section) 2 per prototype cassette foam rubber Mathias Reinecke AHCAL Main Meeting Power Pulsing Tests Test Setup 1 Test Setup 2 (input) Detector electronics (Load) is switched between off (no current) and on (full current) with 1% duty cycle. => Oscillations on 2.20m-long power-ground system? Tested: Switched Current: 0.73A Load Block Caps : F Settling Time / Overshoot = ?? Mathias Reinecke AHCAL Main Meeting Power cycling test setup Test Setup Settling time (Load side): Voltage within 50mV of final value. Aim: reasonable values for efficient power cycling (< 50s) Overshoot shown here for switch-off case (worst-case). Aim: Protection of devices, stable register settings. Later: Stability test for 2.20m slabs Mathias Reinecke AHCAL Main Meeting Power Pulsing with Slab : Setup Power Ground Mathias Reinecke AHCAL Main Meeting Power Pulsing: Results Typical results for overshoot (loadside), similar for both setups. Overshoot on regulator side: