Difference between revisions of "CDC garfield calcs"

Revision as of 15:22, 9 April 2014

Real life results from prototype 2100V 50/50 Ar/CO2 with scintillators horizontal, cosmics not limited to 90^o
Drift time (- offset) in ns	First max in signal amplitude	Integrated signal	Integrated signal (zoomed in)

Garfield for 3GeV muons at 90^o to straw
Drift time (- offset)	First max in signal amplitude	Integrated signal

Garfield for 3GeV muons at 90^o to straw within 1mm of wire
Drift time (- offset)	First max in signal amplitude	Integrated signal

Garfield for 3GeV muons at 90^o to straw within 5mm and 6mm from wire
Drift time (- offset)	First max in signal amplitude	Integrated signal	Integrated signal

Garfield for 3GeV muons at 90^o to straw within 6mm and 7mm from wire
Drift time (- offset)	First max in signal amplitude	Integrated signal	Integrated signal

Garfield for 3GeV muons at 90^o to straw within 7mm and 8mm from wire
Drift time (- offset)	First max in signal amplitude	Integrated signal	Integrated signal

Garfield for 3GeV muons at 90^o to straw within 7.5mm and 8mm from wire
Drift time (- offset)	First max in signal amplitude	Integrated signal	Integrated signal

Garfield for 400MeV/c protons at 45^o to straw
Drift time (- offset)	First max in signal amplitude	Integrated signal

Garfield for 400MeV/c protons at 23^o to straw
Drift time (- offset)	First max in signal amplitude	Integrated signal

Garfield for 400MeV/c protons at 45^o to straw within 1mm of wire
Drift time (- offset)	First max in signal amplitude	Integrated signal

Garfield for 400MeV/c protons at 23^o to straw within 1mm of wire
Drift time (- offset)	First max in signal amplitude	Integrated signal

Cosmics, same prototype run, lower hit threshold (3sigma) and minimum number of hits=1, 2100V 50/50 Ar/CO2
Max amp	Integrated signal	Integrated signal for hits with maxamp < 90
Integrated signal for hits with maxamp < 60	Integrated signal for hits with maxamp < 60

Cosmics, same prototype run, 2100V 50/50 Ar/CO2, look at low amplitude hits and exclude events identified (in another file) as having a higher amplitude hit later on
Max amplitude for 3 sigma hit threshold, blue: all 3sigma hits, pink: excluded later hits over 5 sigma	Integrated signal for 3 sigma hit threshold, blue: all 3sigma hits, pink: excluded later hits over 5 sigma

Cosmics, same prototype run, 2100V 50/50 Ar/CO2, look at hits with drift radius > 7mm and exclude events identified (in another file) as having a higher amplitude hit later on
Max amplitude for 3 sigma hit threshold, 7mm+, blue: all 3sigma hits, pink: excluded later hits over 5 sigma	Integrated signal for 3 sigma hit threshold, 7mm+, blue: all 3sigma hits, pink: excluded later hits over 5 sigma

Max amplitude for 2 sigma hit threshold, blue: all 2sigma hits, pink: excluded later hits over 3 sigma

Integrated signal for 2 sigma hit threshold, blue: all 2sigma hits, pink: excluded later hits over 3 sigma

Fit histo with excluded later hits over 3 sigma, mean fixed near 0

@@ Line 4: / Line 4: @@
 |[[Image:cdc_run_31942_maxampfit.png|thumb|x200px|First max in signal amplitude]]
 |[[Image:cdc_run_31942_integration.png|thumb|x200px|Integrated signal]]
+|[[Image:cdc_run_31942_integration_z.png|thumb|x200px|Integrated signal (zoomed in)]]
 |}