GEM Integrated PCB readout and cooling Andrey Marinov On behalf of GEMs for CMS collaboration CMS GEM Upgrade Workshop III 18/04/2012
Talk Outline GE1/1 Proto1 GE1/1 Proto2 GE CMS detector – Cooling and integrated readout PCB NS2 Technique Detector Powering plan Cooling Calculations Readout strips - PCB design On going activities CMS GEM Upgrade Workshop III 18/04/2012
GE1/1 Detector Layout GE1/1 Proto1 GE1/1 Proto2 Drift, GEM1 = 3mm GEM1, GEM2 = 2mm GEM1, GEM2 = 1mm GEM2, GEM3 = 2mm GEM3, Readout = 2mm GEM3, Readout = 1mm CMS GEM Upgrade Workshop III 18/04/2012
GE1/1 Prototypes – Proto1 Readout PCB with strips 128 channels per VFAT connector 0.8mm pitch 256 strips for each eta partition 1.6mm pitch PCB thickness = 3mm 1024 channels CMS GEM Upgrade Workshop III 18/04/2012
GE1/1 Proto2 – Readout Board 24VFAT FEBs 3072 channels Strip’s pitch 0.8mm Strip’s pitch 0.4mm CMS GEM Upgrade Workshop III 18/04/2012
From Thermo Stretching to NS2 Technology CMS GEM Upgrade Workshop III 18/04/2012
GE CMS Prototype Full size detector ready for installation in CMS 3840 Readout channels. Based on NS2 Technology. Gaps between the detector electrodes 3/1/2/1mm All services integrated and compatible with the CMS infrastructure. Thanks to NS2 method the detector can be open and elements can be changed. CMS GEM Upgrade Workshop III 18/04/2012
GE CMS Prototype - Power Consumption VFAT FEB power =18W HV Divider = 4W dc/dc converters - 80% efficiency GBT = 2.25W Total Power for the detector is 34W CMS GEM Upgrade Workshop III 18/04/2012
GE Detector Cooling Sketch CMS GEM Upgrade Workshop III 18/04/2012
Clearance Available Inside the GE detector 9mm clearance CMS GEM Upgrade Workshop III 18/04/2012
VFAT Cooling Sketch CMS GEM Upgrade Workshop III 18/04/2012
VFAT3 PCB Design 44mm 50 mm Multilayer chip bonding CMS GEM Upgrade Workshop III 18/04/2012
VFAT Cooling Sketch Water flow rate = 0.02826 kg/s CMS GEM Upgrade Workshop III 18/04/2012
VFAT Chip Cooling Calculations made by Enrich Da Riva – CERN CFD team CMS GEM Upgrade Workshop III 18/04/2012
Cooling Calculations for the HV Divider Calculations made by Enrico Da Riva – CERN CFD team CMS GEM Upgrade Workshop III 18/04/2012
GE Detector – Cooling of the HV divider CMS GEM Upgrade Workshop III 18/04/2012
VFAT3 Cooling Calculations made by Enrico Da Riva – CERN CFD team CMS GEM Upgrade Workshop III 18/04/2012
GE Integrated Readout Board For the moment the full size readout board is foreseen to be 7 layers providing : Strips and connection to the FEB Power to the FEBs Ground connection LVDS signal lines from FEB to the optical transceiver GBT CMS GEM Upgrade Workshop III 18/04/2012
On going activities VFAT PCB design – nearly finished GE readout board on going CMS GEM Upgrade Workshop III 18/04/2012
Thank you. CMS GEM Upgrade Workshop III 18/04/2012