Difference between revisions of "Newest preamp"
From GlueXWiki
Line 6: | Line 6: | ||
*Comparison of modified preamp (preamp4 with terminating resistors removed) and its predecessor (preamp4) | *Comparison of modified preamp (preamp4 with terminating resistors removed) and its predecessor (preamp4) | ||
− | Below: cosmics with | + | Below: cosmics with new fADC, preamp4 (left) and newest modified preamp (right) Blue histograms are tracked hits, runtimes were not equal. |
{| border="0" cellpadding="2" | {| border="0" cellpadding="2" | ||
+ | |width="420pt"| | ||
+ | [[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_31646_thr5_amp6.png|thumb|420px|Max amplitude histo for cosmics, new fADC, modified HVB, modified preamp, mixed 50/50 at 60 sccm 2050V]] | [[Image:run_31646_thr5_amp6.png|thumb|420px|Max amplitude histo for cosmics, new fADC, modified HVB, modified preamp, mixed 50/50 at 60 sccm 2050V]] | ||
|width="420pt"| | |width="420pt"| | ||
− | [[Image: | + | [[Image:run_31646_thr5_amp6_unz.png|thumb|420px|Max amplitude histo for cosmics, new fADC, modified HVB, modified preamp, mixed 50/50 at 60 sccm 2050V]] |
|} | |} | ||
+ | |||
+ | Earlier new fADC results are on this page: [[New_fADC_with_cosmics]] | ||
+ | |||
Revision as of 08:38, 20 April 2011
- 50/50 mixed Ar, CO2
- Recalibrated MFCs
- Outer plenum added to CDC prototype to prevent leaks
- New modified HVB
- 2050V
- Comparison of modified preamp (preamp4 with terminating resistors removed) and its predecessor (preamp4)
Below: cosmics with new fADC, preamp4 (left) and newest modified preamp (right) Blue histograms are tracked hits, runtimes were not equal.
Earlier new fADC results are on this page: New_fADC_with_cosmics
Below: 55Fe spectra with preamp 4 and Struck ADCs set to half-range, 550mV
Below: 55Fe spectra with newest preamp (preamp4 minus terminating resistors) and Struck ADCs set to full-range, 1.1V