Difference between revisions of "Pre-production prototype HVB"
From GlueXWiki
(3 intermediate revisions by the same user not shown) | |||
Line 6: | Line 6: | ||
*Comparison of pre-production modified CDC HVB prototype from manufacturer with modified HVB from Fernando (the two should be identical) | *Comparison of pre-production modified CDC HVB prototype from manufacturer with modified HVB from Fernando (the two should be identical) | ||
− | Below: max amplitude histograms (left) and | + | Below: 55Fe: max amplitude histograms (left) and amplitude integrated over 96ns (right), new prototype HVB, cosmics rejected in software |
{| border="0" cellpadding="2" | {| border="0" cellpadding="2" | ||
|width="420pt"| | |width="420pt"| | ||
Line 13: | Line 13: | ||
[[Image:run_31677_e.png|thumb|420px|Integrated amplitude histo for 55Fe, pre-production prototype HVB]] | [[Image:run_31677_e.png|thumb|420px|Integrated amplitude histo for 55Fe, pre-production prototype HVB]] | ||
|} | |} | ||
− | Below: max amplitude histograms (left) and | + | Below: 55Fe: max amplitude histograms (left) and amplitude integrated over 96ns (right), Fernando's modified HVB, cosmics rejected in software |
{| border="0" cellpadding="2" | {| border="0" cellpadding="2" | ||
|width="420pt"| | |width="420pt"| | ||
Line 19: | Line 19: | ||
|width="420pt"| | |width="420pt"| | ||
[[Image:run_31635_e_track24.png|thumb|420px|Integrated amplitude histo for 55Fe, Fernando's modified HVB]] | [[Image:run_31635_e_track24.png|thumb|420px|Integrated amplitude histo for 55Fe, Fernando's modified HVB]] | ||
+ | |} | ||
+ | |||
+ | Below: Cosmics: max amplitude histograms (left) and amplitude integrated over 700ns (right), new prototype HVB | ||
+ | {| border="0" cellpadding="2" | ||
+ | |width="420pt"| | ||
+ | [[Image:run_31678_amp.png|thumb|420px|Max amplitude histo for cosmics, pre-production prototype HVB, 2050V]] | ||
+ | |width="420pt"| | ||
+ | [[Image:run_31678_e.png|thumb|420px|Integrated amplitude histo for cosmics, pre-production prototype HVB, 2050V]] | ||
+ | |} | ||
+ | Below: Cosmics: max amplitude histograms (left) and amplitude integrated over 700ns (right), Fernando's modified HVB | ||
+ | {| border="0" cellpadding="2" | ||
+ | |width="420pt"| | ||
+ | [[Image:run_31663_amp.png|thumb|420px|Max amplitude histo for cosmics, Fernando's modified HVB, 2050V]] | ||
+ | |width="420pt"| | ||
+ | [[Image:run_31663_e.png|thumb|420px|Integrated amplitude histo for cosmics, Fernando's modified HVB, 2050V]] | ||
|} | |} |
Latest revision as of 01:07, 20 June 2011
- 50/50 mixed Ar, CO2 at 60 sccm
- Recalibrated MFCs
- Outer plenum added to CDC prototype to prevent leaks
- 2050V
- Modified preamp (preamp4 with terminating resistors removed)
- Comparison of pre-production modified CDC HVB prototype from manufacturer with modified HVB from Fernando (the two should be identical)
Below: 55Fe: max amplitude histograms (left) and amplitude integrated over 96ns (right), new prototype HVB, cosmics rejected in software
Below: 55Fe: max amplitude histograms (left) and amplitude integrated over 96ns (right), Fernando's modified HVB, cosmics rejected in software
Below: Cosmics: max amplitude histograms (left) and amplitude integrated over 700ns (right), new prototype HVB
Below: Cosmics: max amplitude histograms (left) and amplitude integrated over 700ns (right), Fernando's modified HVB