Status of the electron cloud test-bench in LSS5. G. Arduini SL/OP Crash programme in collaboration with LHC/VAC,SL/AP,SL/BI,SL/MR,SL/MS,SL/OP,…. Why a test-bench?.
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Status of the electron cloud test-bench in LSS5
G. Arduini SL/OP
Crash programme in collaboration with LHC/VAC,SL/AP,SL/BI,SL/MR,SL/MS,SL/OP,…
For the start-up
For the start-up....we hope
Hole radius: 1 mm
Hole pitch: 6 mm
Electron stripe width: 2 mm
Larger transparency (0.3 instead of 0.09)
Requires calibration by means of horizontal steering
A model with bias voltage
The electrodes are not seeing the beam directly
Signal µ stripe position x density
Granularity of the detector (strip detector)
Granularity of the screen
Deviation of the field lines from vertical. 1 % Bx (in reality it should be smaller) should give a few tenth mm error in position. Better to stay in the centre of the magnet (possiblity to adjust the magnet position vertically).