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| | |width="415pt"|[[Image:old_preamp_cosmics_2100V.jpg|thumb|none|400px|old preamp, cosmic rays, 50/50 Ar/CO2, 2100V]] | | |width="415pt"|[[Image:old_preamp_cosmics_2100V.jpg|thumb|none|400px|old preamp, cosmic rays, 50/50 Ar/CO2, 2100V]] |
| | |width="415pt"|[[Image:old_preamp_cosmics_2100V_longer.jpg|thumb|none|400px|old preamp, cosmic rays, 50/50 Ar/CO2, 2100V (as left, for longer) ]] | | |width="415pt"|[[Image:old_preamp_cosmics_2100V_longer.jpg|thumb|none|400px|old preamp, cosmic rays, 50/50 Ar/CO2, 2100V (as left, for longer) ]] |
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| − | 2200V, 55Fe source
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| − | {| border="1" cellpadding="2"
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| − | |width="415pt"|[[Image:new_preamp_55Fe_2200V.jpg|thumb|none|400px|new preamp with 50/50 Ar/CO2, 2200V <br> blue: ch15 (source above this), yellow: ch16 (neighbor)<br> Peaks are approx 500ns apart]]
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Revision as of 14:52, 20 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), cosmic rays, 50/50 Ar/CO2, 1900V |
 old preamp and old cable, cosmic rays, 50/50 Ar/CO2, 1900V |
 new preamp and old cable, cosmic rays, 50/50 Ar/CO2, 1900V. |
The following were obtained with increased anode voltages.
2000V, 55Fe source
 new preamp, 55Fe, 50/50 Ar/CO2, 2000V |
 old preamp, 55Fe, 50/50 Ar/CO2, 2000V |
2000V, Cosmic rays
 new preamp, cosmic rays, 50/50 Ar/CO2, 2000V |
 old preamp, cosmic rays, 50/50 Ar/CO2, 2000V |
2100V, 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) |
2100V, 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) |
