Difference between revisions of "New HVB"

From GlueXWiki
Jump to: navigation, search
Line 24: Line 24:
  
 
<br>Fe55 with premixed 50/50 Ar/CO<sub>2</sub>, New preamp and new HVB, ADC half-range, for a range of HV<br>
 
<br>Fe55 with premixed 50/50 Ar/CO<sub>2</sub>, New preamp and new HVB, ADC half-range, for a range of HV<br>
<br>
+
Left: max amplitude histogram; Right: energy<br>
  
 
{| border="0" cellpadding="2"
 
{| border="0" cellpadding="2"
 
|width="400pt"|
 
|width="400pt"|
 
[[Image:newHVB_Fe55_amp.jpg|thumb|400px|New preamp and HVB - max amplitude histo for 55Fe ]]
 
[[Image:newHVB_Fe55_amp.jpg|thumb|400px|New preamp and HVB - max amplitude histo for 55Fe ]]
 +
|width="400pt"|
 +
[[Image:newHVB_Fe55_e.jpg|thumb|400px|New preamp and HVB - energy histo for 55Fe ]]
 
|}
 
|}
  

Revision as of 10:49, 7 September 2010

Max amplitude histograms for cosmics at 2100V with 50/50 Ar/CO2
Left: new preamp and new HVB, ADC half-range; right: old preamp and HVB, ADC full-range
Purple: untracked, blue: tracked (less of this with old preamp because of 2 dead central channels)

New preamp and HVB - max amplitude histo for cosmics at 2100V
Old preamp and HVB - max amplitude histo for cosmics at 2100V


Cosmics with premixed 50/50 Ar/CO2, New preamp and new HVB, ADC half-range

Left: 2000V; Right: 2050V - NB expanded x-axis

New preamp and HVB - max amplitude histo for cosmics at 2000V
New preamp and HVB - max amplitude histo for cosmics at 2050V



Fe55 with premixed 50/50 Ar/CO2, New preamp and new HVB, ADC half-range, for a range of HV
Left: max amplitude histogram; Right: energy

New preamp and HVB - max amplitude histo for 55Fe
New preamp and HVB - energy histo for 55Fe


The beginnings of a new HV efficiency plot

New preamp and HVB - tracked/triggers with HV for software threshold=5

Scope traces for premixed 50/50 Ar/CO2

Fe55 at 2100V (50mV/div 100ns/div)
Cosmics at 2100V (50mV/div 100ns/div)