ATLAS Inner Detector thermal study
The Inner Detector
First section : the inner detector
Back out Case -40 °C 250°C
MaterialDensity (kg/m3) Specific Heat (J/(kg*K)) Thermal conductivity (W/(m*K)) PMMA (plexiglass external tube) U - profiles (except Pixel_B staves) IST Omega Carbon foam Titanium Pipe Silicon layer? Aluminium foil Aerogel Heaters 0.09 g/cm2 (approx 1250 kg/m3) Aluminium pipe
Second section: addition of the other layers
Second section:adding of the other layers First section B-layer
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Geometry Cooling Pipes Staves Beam Pipe Nitrogen
Normal case -40 °C 100 W
Accidental Case No more cooling ?