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Re: TPC dE/dx [message #11560 is a reply to message #11557]

Tue, 08 March 2011 17:03

Felix Boehmer
Messages: 149
Registered: May 2007
Location: Munich

first-grade participant

From: *natpool.mwn.de

Hi Stefano,

very cool that you look into this!

Just some comments:
The cluster amplitude is defined after the FrontEnd and given in ADC channels! It is calculated from the analogue signal amplitude (on the pad) using some parameters: ADC_amp = Sig_amp /(adcmax/adcmaxcount) (See PndTpcFrontend).

You have to be very careful when defining the dx - a lot of effects are at work here (clustering!). The best approach is to use the actual track fit, as it is done in the task that I sent you a while ago

Cheers

Felix

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[Message index]

		TPC dE/dx By: StefanoSpataro on Tue, 08 March 2011 15:54
		Re: TPC dE/dx By: Anonymous Poster on Tue, 08 March 2011 16:02
		Re: TPC dE/dx By: StefanoSpataro on Tue, 08 March 2011 16:28
		Re: TPC dE/dx By: Felix Boehmer on Tue, 08 March 2011 17:03
		Re: TPC dE/dx By: StefanoSpataro on Tue, 08 March 2011 17:16
		Re: TPC dE/dx By: Felix Boehmer on Wed, 09 March 2011 13:53

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