Difference between revisions of "CDC garfield calcs"

Revision as of 10:26, 13 March 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

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

Same prototype run, lower hit threshold (3sigma) 2100V 50/50 Ar/CO2
Max amp	Integrated signal	Integrated signal for hits with maxamp < 90
Integrated signal for hits with maxamp < 60

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 hits, pink: excluded hits over 5 sigma	Integrated signal for 3 sigma hit threshold, blue: all hits, pink: excluded hits over 5 sigma
Max amplitude for 2 sigma hit threshold, blue: all hits, pink: excluded hits over 3 sigma	Integrated signal for 2 sigma hit threshold, blue: all hits, pink: excluded hits over 3 sigma

@@ Line 38: / Line 38: @@
 |-
 |[[Image:cdc_run_31942_thr3_int_noise60.png|thumb|x200px|Integrated signal for hits with maxamp < 60]]
-|-
+|}
+{| border="0" cellpadding="2"
+|+ 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
 |[[Image:cdc_run_31942_thr3_maxamp_not5sig.png|thumb|x200px|Max amplitude for 3 sigma hit threshold, blue: all hits, pink: excluded hits over 5 sigma]]
 |[[Image:cdc_run_31942_thr3_int_not5sig.png|thumb|x200px|Integrated signal for 3 sigma hit threshold, blue: all hits, pink: excluded hits over 5 sigma]]