Constants to Review

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Revision as of 15:36, 9 May 2014 by Sdobbs (Talk | contribs) (Created page with "These are constants whose values need to be revisited === Digitization-level constants === '''CDC''' a_scale = 1.0E6/1.3E5 '''FDC''' a_scale = 2.4E4/1.3E5; // for c...")

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These are constants whose values need to be revisited

Digitization-level constants

CDC

a_scale = 1.0E6/1.3E5

FDC

a_scale = 2.4E4/1.3E5; // for cathodes, what about wires?

FCAL

a_scale = 4.0E1/2.5E5

BCAL

a_scale = 0.0001; // 100 keV/count (?)

TOF

a_scale = 0.2/5.2E5

ADC: hit->sigma_t = 4.0; // ns (what is the fADC time resolution?)
RDC: hit->sigma_t = 0.160; // ns (what is the TOF TDC time resolution?)
t0 offset for fADC?

Start Counter

a_scale = 2.0E-2/5.2E-5

ADC: hit->sigma_t = 4.0; // ns (what is the fADC time resolution?)
RDC: hit->sigma_t = 0.160; // ns (what is the TOF TDC time resolution?)
t0 offset for fADC?

Simulation constants

CDC/DCDCTrackHit_factory.h

w_eff=29.5e-9; gas_gain=1e5; hit->dist = hit->tdrift*55.0E-4; // Use number hardwired in simulation for now