Infrastructure for CO 2 cooling in the CBM experiment at FAIR Wolfgang Niebur and Johann M. Heuser GSI, Darmstadt, Germany for the CBM collaboration 18-Mar-2013 Work Package 13 - CO2 Cooling 1
Jan 20, 2016
Infrastructure for CO2 cooling in the CBM experiment at FAIR
Wolfgang Niebur and Johann M. HeuserGSI, Darmstadt, Germanyfor the CBM collaboration
18-Mar-2013 Work Package 13 - CO2 Cooling 1
18-Mar-2013 Work Package 13 - CO2 Cooling 2
Cooling method
• Evaporative CO2 cooling for the Silicon Tracking System (STS)
• Integrated 2-Phase Accumulator Controlled Loop
18-Mar-2013 Work Package 13 - CO2 Cooling 3
CBM Building
CBM experimentSTS
Underground hall:Length: 37 mWidth: 22 m Height: 17 m
CO2 plant
pipe length ~ 70 m
gas storage
18-Mar-2013 Work Package 13 - CO2 Cooling 4
CBM Building
CBM experimentSTS
Underground hall:Length: 37 mWidth: 22 m Height: 17 m
CO2 plant
pipe length ~ 70 m
gas storage
room height: ~ 3.70 m
18-Mar-2013 Work Package 13 - CO2 Cooling 5
Gas storage
18-Mar-2013 Work Package 13 - CO2 Cooling 6
Silicon Tracking SystemCooling requirement• 2.1M r/o channels • ~ 17k STS-XYTER ASICs• 2080 electronics boards à 20 W
in boxes of 10 at top & bottom of STS • total power dissipation:
2 × 21 kW = 42 kW