Difference between revisions of "Preamp 3"

Revision as of 13:46, 16 April 2010

The pictures below show oscilloscope traces for gas mixture 50/50 Ar/CO2, all are shaper output.

new preamp and new cable (baseline adjusted), 1900V.

old preamp and old cable, 1900V.

new preamp and old cable, 1900V.

The following were obtained with increased anode voltages.
55Fe source

new preamp, 55Fe, 50/50 Ar/CO2, 2000V

old preamp, 55Fe, 50/50 Ar/CO2, 2000V

Cosmic rays

new preamp, cosmic rays, 50/50 Ar/CO2, 2000V

old preamp, cosmic rays, 50/50 Ar/CO2, 2000V

55Fe source

new preamp, 55Fe, 50/50 Ar/CO2, 2100V

new preamp, 55Fe, 50/50 Ar/CO2, 2100V (as left, for longer)

old preamp, 55Fe, 50/50 Ar/CO2, 2100V

old preamp, 55Fe, 50/50 Ar/CO2, 2100V (as left, for longer)

Cosmic rays

new preamp, cosmic rays, 50/50 Ar/CO2, 2100V

new preamp, cosmic rays, 50/50 Ar/CO2, 2100V (as left, for longer)

old preamp, cosmic rays, 50/50 Ar/CO2, 2100V

old preamp, cosmic rays, 50/50 Ar/CO2, 2100V (as left, for longer)

55Fe source

new preamp with 50/50 Ar/CO2, 2200V
blue: ch15 (source above this), yellow: ch16 (neighbor)
Peaks are approx 500ns apart

@@ Line 14: / Line 14: @@
 The following were obtained with increased anode voltages.<br>
 Fe source
+{| border="1" cellpadding="2"
+|-
+|width="415pt"|[[Image:new_preamp_55Fe_2000V.jpg|thumb|none|400px|new preamp, 55Fe, 50/50 Ar/CO2, 2000V]]
+|-
+|}
+{| border="1" cellpadding="2"
+|-
+|width="415pt"|[[Image:old_preamp_55Fe_2000V.jpg|thumb|none|400px|old preamp, 55Fe, 50/50 Ar/CO2, 2000V]]
+|-
+|}
+Cosmic rays
+{| border="1" cellpadding="2"
+|-
+|width="415pt"|[[Image:new_preamp_cosmics_2000V.jpg|thumb|none|400px|new preamp, cosmic rays, 50/50 Ar/CO2, 2000V]]
+|-
+|}
+{| border="1" cellpadding="2"
+|-
+|width="415pt"|[[Image:old_preamp_cosmics_2000V.jpg|thumb|none|400px|old preamp, cosmic rays, 50/50 Ar/CO2, 2000V]]
+|-
+|}55Fe source
 {| border="1" cellpadding="2"
 |-
@@ Line 41: / Line 63: @@
 |}
+Fe source
 {| border="1" cellpadding="2"
 |-