Difference between revisions of "New fADC with cosmics"
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{| border="0" cellpadding="2" | {| border="0" cellpadding="2" | ||
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| − | [[Image:run_31628_amp6.png|thumb|420px| | + | [[Image:run_31628_amp6.png|thumb|420px|Max amplitude histo for cosmics, new fADC, unmodified HVB, mixed 50/50 at 60 sccm 2050V]] |
|width="420pt"| | |width="420pt"| | ||
| − | [[Image:run_31599_amp6.png|thumb|420px| | + | [[Image:run_31599_amp6.png|thumb|420px|Max amplitude histo for cosmics, new fADC, modified HVB, mixed 50/50 at 60 sccm 2050V]] |
|width="420pt"| | |width="420pt"| | ||
| − | [[Image:run_31598_amp7.png|thumb|420px| | + | [[Image:run_31598_amp7.png|thumb|420px|Max amplitude histo for cosmics, Struck fADCs, modified HVB, mixed 50/50 at 60 sccm, 2050V]] |
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[[Image:run_31599_drift.png|thumb|420px|New fADC cosmics drift time (untracked), mixed 50/50 at 60 sccm 2050V ]] | [[Image:run_31599_drift.png|thumb|420px|New fADC cosmics drift time (untracked), mixed 50/50 at 60 sccm 2050V ]] | ||
|width="420pt"| | |width="420pt"| | ||
| − | [[Image:run_31598_drift.png|thumb|420px|Struck | + | [[Image:run_31598_drift.png|thumb|420px|Struck fADCs cosmics drift time (untracked), mixed 50/50 at 60 sccm, 2050V]] |
| + | |} | ||
| + | |||
| + | Cosmics, 2050V, drift radius fit residuals (radius of fitted track - radius interpolated from Garfield drift time calcs)<br> | ||
| + | New fADC with unmodified HVB (left), with modified HVB (center) and Struck fADCs with modified HVB (right), same straw for each.<br> | ||
| + | |||
| + | {| border="0" cellpadding="2" | ||
| + | |width="420pt"| | ||
| + | [[Image:run_31628_resids6.png|thumb|420px|Drift radius fit residuals, new fADC, unmodified HVB, mixed 50/50 at 60 sccm 2050V]] | ||
| + | |width="420pt"| | ||
| + | [[Image:run_31599_resids6.png|thumb|420px|Drift radius fit residuals, new fADC, modified HVB, mixed 50/50 at 60 sccm 2050V]] | ||
| + | |width="420pt"| | ||
| + | [[Image:run_31598_resids7.png|thumb|420px|Drift radius fit residuals, Struck fADCs, modified HVB, mixed 50/50 at 60 sccm, 2050V]] | ||
|} | |} | ||
Revision as of 15:47, 11 April 2011
- 50/50 mixed Ar, CO2
- Recalibrated MFCs
- Outer plenum added to CDC prototype to prevent leaks
- New preamp
- New HVB
Cosmics, 2050V, max amplitude histograms, new fADC with unmodified HVB (left), with modified HVB (center) and Struck fADCs with modified HVB (right), same straw for each.
NB different x axis scale, full scale is 4096 for both ADCs.
Cosmics, 2050V, drift time - untracked, new fADC (left) and Struck fADCs (right), same straw for both.
Cosmics, 2050V, drift radius fit residuals (radius of fitted track - radius interpolated from Garfield drift time calcs)
New fADC with unmodified HVB (left), with modified HVB (center) and Struck fADCs with modified HVB (right), same straw for each.
