TPC

TPC

TPC

General Information

This page serves as a centralized page for TPC group's meetings (starting May 1, 2019).

TPC Inner Sector Upgrade, FEE card development

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 SAMPA Chip: the New 32 Channels ASIC for the ALICE TPC and MCH Upgrades

TPC GGDII "Gated Grid Driver/ Controller II"

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GridLeak Distortions after MiddleGridLeak Correction

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GridLeak Distortions after MiddleGridLeak Correction

I recommend using tabbed browsing to view these plots, whereby you open a series of plots in a series of tabs, and then move through the

GridLeak: Initial Studies

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GridLeak Distortion

GridLeak R&D

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Run 12 CuAu

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The TPC drift velocities were re-calibrated using the most recent TPC alignment.

TPC Hit Errors

TPC T0s

Global T0:

RunXI dE/dx calibration recipe

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This is a recipe of RunXI dEdx calibration by Yi Guo.

pp500 (2011)

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MC cluster reconstruction

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GridLeak Distortion Maps

 Using the code in StMagUtilities, these are maps of the GridLeak distortion.

Resistor box at the end of the Field Cage chain

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 After ring 181, the potentials are determined by a box of resistors which sit outside the TPC.

Cluster flags

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FCF

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 Please attach any information about the Fast Cluster Finder (FCF) here.

SpaceCharge in dAu

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In Run VIII, dAu data was acquired at high enough luminosities to worry about SpaceCharge (it was ignored previously in the Run III dAu data (2003)).

pp400 (2005)

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pp400 (actually 410 GeV) data was collected on days 153 and 154 in early June 2005.

The attached file is a before and after calibration comparion of DCAs.

TPC Calibrations

TPC Calibration & Data-Readiness Tasks: