Difference between revisions of "CDC prototype flowrates"

Revision as of 10:41, 12 October 2011

Use mixed 50/50 Ar/CO2 and vary the flow rate through the mixer.

Data taken at 80sccm total, 60sccm and 40sccm (in that order). Drift time histograms are for the central block of straws (middle 2 in each row)

Upper end of drift time histo of tracks through central block of straws (middle 2 in each row)

Collected more data at 80sccm.

Drift time histo

Upper end of drift time histo of tracks through central block of straws (middle 2 in each row)

@@ Line 1: / Line 1: @@
 Use mixed 50/50 Ar/CO2 and vary the flow rate through the mixer.
-Data taken at 80sccm total, 60sccm and 40sccm.
+Data taken at 80sccm total, 60sccm and 40sccm (in that order). Drift time histograms are for the central block of straws (middle 2 in each row)
 {| border="0" cellpadding="2"
@@ Line 9: / Line 9: @@
 |}
+Collected more data at 80sccm.
-From an old and short 2200V run
 {| border="0" cellpadding="2"
 |width="450pt"|
-[[Image:run_31658_events.png|thumb|450px|Events at 2200V]]
+[[Image:flowrates_drift_central_z.png|thumb|450px|Drift time histo]]
 |width="450pt"|
-[[Image:run_31658_eventsz.png|thumb|450px|Events at 2200V (zoom in on pedestal)]]
+[[Image:flowrates_drift_central_z.png|thumb|450px|Upper end of drift time histo of tracks through central block of straws (middle 2 in each row)]]
 |}