New HVB

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

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)