Difference between revisions of "CDC prototype flowrates"
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Use mixed 50/50 Ar/CO2 and vary the flow rate through the mixer. | 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) | + | 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). All are at 2050V. |
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{| border="0" cellpadding="2" | {| border="0" cellpadding="2" | ||
|width="450pt"| | |width="450pt"| | ||
| − | [[Image:flowrate_cosmics_amp_20.png|thumb|450px|Max amplitude histo for ch20 (straw 17)]] | + | [[Image:flowrate_cosmics_amp_20.png|thumb|450px|Max amplitude histo for ch20 (straw 17) 2050V]] |
| + | |} | ||
| + | |||
| + | Drift time for 1 or more hit (dark blue), 5 or more hits (pink), and tracks with 5 or more hits (light blue) for 60sccm data | ||
| + | {| border="0" cellpadding="2" | ||
| + | |width="900pt"| | ||
| + | [[Image:run_31721_drift.png|thumb|900px|Drift time for run 31721 2050V 50/50 Ar/CO2 60sccm total flow rate]] | ||
|} | |} | ||
Revision as of 16:36, 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). All are at 2050V.
Collected more data at 80sccm.
Drift time for 1 or more hit (dark blue), 5 or more hits (pink), and tracks with 5 or more hits (light blue) for 60sccm data
