Speaker
Hans Martin Ljunggren
(Lund University (SE))
Description
The ALICE collaboration plans major upgrades to its detectors for Run 3
and 4 of the LHC, in 2020 and beyond. For the TPC, the upgrade is aimed at increasing the rate
capability to record an expected collision rate of 50 kHz Pb-Pb
collisions, which requires continuous readout.
The current TPC will therefore be reinstrumented with new Gas Electron
Multipliers (GEM) readout chambers that can suppress ~99% of the ion
back flow. The remaining 1% ion back flow will still give rise to
significant space charge distortions that have to be corrected.
In this poster I will show how these corrections are foreseen to be done
and report the expected performance obtained from simulations studies.
In order to understand the time dependence of the space charge
distortions, a dynamic simulation has been developed. Results from this
simulations will also be presented here.
| On behalf of collaboration: | ALICE |
|---|
Author
Hans Martin Ljunggren
(Lund University (SE))
