Inner RPC plateau curve results
Chamber by chamber plateau curves from data collected
starting in December, 1999. Chamber efficiencies are determined
from cosmic triggers by examining 1D cluster residuals. Two planar-Ifr
chamber 3D clusters with at least 5 layers are used to compute
the expected location of clusters in the inner RPC. Efficienies
computed from both views of each chamber are shown.
The chamber numbering scheme is shown
here.
Plots since August 2000
August 7, 2000:
(Efficiency)
March 17, 2000:
(Efficiency)
March 7, 2000:
(Efficiency)
February 27, 2000:
(Efficiency)
February 23, 2000:
(Efficiency)
February 16, 2000:
(Efficiency)
February 9, 2000:
(Efficiency)
January 27, 2000:
(Efficiency)
(Multiplicity by chamber)
(Multiplicity by view)
New gas mix.
January 22, 2000:
(Efficiency)
New gas mix.
Comparison on January 7, 2000 and January 12, 2000:
(Efficiency)
January 12, 2000:
(Efficiency)
(Multiplicity)
First plateau curve during higher Argon gas test.
January 7, 2000:
(Efficiency)
(Multiplicity)
Just before gas mix is changed to higher Argon content mix.
January 3, 2000
(Efficiency)
(Multiplicity)
During recovery from pure Argon flushing during Xmas, 1999. Approximately
4 days after start of normal gas mix flow.
December 15, 1999:
(Efficiency)
(Multiplicity)
Our current baseline plateau curve. Gas mix is nominal summer/fall, 1999
mix.
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