Difference between revisions of "Preamp 3"
From GlueXWiki
| Line 1: | Line 1: | ||
The pictures below show oscilloscope traces for gas mixture 50/50 Ar/CO2, all are shaper output. | The pictures below show oscilloscope traces for gas mixture 50/50 Ar/CO2, all are shaper output. | ||
{| border="1" cellpadding="2" | {| border="1" cellpadding="2" | ||
| − | |||
|width="415pt"|[[Image:preamp_3_new_cable.jpg|thumb|none|400px|new preamp and new cable (baseline adjusted), cosmic rays, 50/50 Ar/CO2, 1900V]] | |width="415pt"|[[Image:preamp_3_new_cable.jpg|thumb|none|400px|new preamp and new cable (baseline adjusted), cosmic rays, 50/50 Ar/CO2, 1900V]] | ||
|width="415pt"|[[Image:allold.jpg|thumb|none|400px|old preamp and old cable, cosmic rays, 50/50 Ar/CO2, 1900V]] | |width="415pt"|[[Image:allold.jpg|thumb|none|400px|old preamp and old cable, cosmic rays, 50/50 Ar/CO2, 1900V]] | ||
| − | |||
|} | |} | ||
| + | |||
{| border="1" cellpadding="2" | {| border="1" cellpadding="2" | ||
| − | |||
|width="415pt"|[[Image:preamp_3_old_cable.jpg|thumb|none|400px|new preamp and old cable, cosmic rays, 50/50 Ar/CO2, 1900V.]] | |width="415pt"|[[Image:preamp_3_old_cable.jpg|thumb|none|400px|new preamp and old cable, cosmic rays, 50/50 Ar/CO2, 1900V.]] | ||
| − | |||
|} | |} | ||
| − | The following were obtained with increased anode voltages.<br> | + | The following were obtained with increased anode voltages.<br><br> |
| − | 55Fe source | + | 2000V, 55Fe source |
{| border="1" cellpadding="2" | {| border="1" cellpadding="2" | ||
| − | |||
|width="415pt"|[[Image:new_preamp_55Fe_2000V.jpg|thumb|none|400px|new preamp, 55Fe, 50/50 Ar/CO2, 2000V]] | |width="415pt"|[[Image:new_preamp_55Fe_2000V.jpg|thumb|none|400px|new preamp, 55Fe, 50/50 Ar/CO2, 2000V]] | ||
|width="415pt"|[[Image:old_preamp_55Fe_2000V.jpg|thumb|none|400px|old preamp, 55Fe, 50/50 Ar/CO2, 2000V]] | |width="415pt"|[[Image:old_preamp_55Fe_2000V.jpg|thumb|none|400px|old preamp, 55Fe, 50/50 Ar/CO2, 2000V]] | ||
|} | |} | ||
| − | Cosmic rays | + | 2000V, Cosmic rays |
{| border="1" cellpadding="2" | {| border="1" cellpadding="2" | ||
|width="415pt"|[[Image:new_preamp_cosmics_2000V.jpg|thumb|none|400px|new preamp, cosmic rays, 50/50 Ar/CO2, 2000V]] | |width="415pt"|[[Image:new_preamp_cosmics_2000V.jpg|thumb|none|400px|new preamp, cosmic rays, 50/50 Ar/CO2, 2000V]] | ||
|width="415pt"|[[Image:old_preamp_cosmics_2000V.jpg|thumb|none|400px|old preamp, cosmic rays, 50/50 Ar/CO2, 2000V]] | |width="415pt"|[[Image:old_preamp_cosmics_2000V.jpg|thumb|none|400px|old preamp, cosmic rays, 50/50 Ar/CO2, 2000V]] | ||
| − | |}55Fe source | + | |} |
| + | |||
| + | <br> | ||
| + | 2100V, 55Fe source | ||
{| border="1" cellpadding="2" | {| border="1" cellpadding="2" | ||
| − | |||
|width="415pt"|[[Image:new_preamp_55Fe_2100V.jpg|thumb|none|400px|new preamp, 55Fe, 50/50 Ar/CO2, 2100V]] | |width="415pt"|[[Image:new_preamp_55Fe_2100V.jpg|thumb|none|400px|new preamp, 55Fe, 50/50 Ar/CO2, 2100V]] | ||
|width="415pt"|[[Image:new_preamp_55Fe_2100V_longer.jpg|thumb|none|400px|new preamp, 55Fe, 50/50 Ar/CO2, 2100V (as left, for longer)]] | |width="415pt"|[[Image:new_preamp_55Fe_2100V_longer.jpg|thumb|none|400px|new preamp, 55Fe, 50/50 Ar/CO2, 2100V (as left, for longer)]] | ||
| − | |||
|} | |} | ||
{| border="1" cellpadding="2" | {| border="1" cellpadding="2" | ||
| − | |||
|width="415pt"|[[Image:old_preamp_55Fe_2100V.jpg|thumb|none|400px|old preamp, 55Fe, 50/50 Ar/CO2, 2100V]] | |width="415pt"|[[Image:old_preamp_55Fe_2100V.jpg|thumb|none|400px|old preamp, 55Fe, 50/50 Ar/CO2, 2100V]] | ||
|width="415pt"|[[Image:old_preamp_55Fe_2100V_longer.jpg|thumb|none|400px|old preamp, 55Fe, 50/50 Ar/CO2, 2100V (as left, for longer)]] | |width="415pt"|[[Image:old_preamp_55Fe_2100V_longer.jpg|thumb|none|400px|old preamp, 55Fe, 50/50 Ar/CO2, 2100V (as left, for longer)]] | ||
| − | |||
|} | |} | ||
| − | Cosmic rays | + | |
| + | 2100V, Cosmic rays | ||
{| border="1" cellpadding="2" | {| border="1" cellpadding="2" | ||
| − | |||
|width="415pt"|[[Image:new_preamp_cosmics_2100V.jpg|thumb|none|400px|new preamp, cosmic rays, 50/50 Ar/CO2, 2100V]] | |width="415pt"|[[Image:new_preamp_cosmics_2100V.jpg|thumb|none|400px|new preamp, cosmic rays, 50/50 Ar/CO2, 2100V]] | ||
|width="415pt"|[[Image:new_preamp_cosmics_2100V_longer.jpg|thumb|none|400px|new preamp, cosmic rays, 50/50 Ar/CO2, 2100V (as left, for longer) ]] | |width="415pt"|[[Image:new_preamp_cosmics_2100V_longer.jpg|thumb|none|400px|new preamp, cosmic rays, 50/50 Ar/CO2, 2100V (as left, for longer) ]] | ||
| − | |||
|} | |} | ||
{| border="1" cellpadding="2" | {| border="1" cellpadding="2" | ||
| − | |||
|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) ]] | ||
| − | |||
|} | |} | ||
| − | + | <br> | |
| − | + | 2200V, 55Fe source | |
| − | + | ||
| − | + | ||
| − | 55Fe source | + | |
{| border="1" cellpadding="2" | {| border="1" cellpadding="2" | ||
| − | |||
|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]] | |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]] | ||
| − | |||
|} | |} | ||
Revision as of 14:14, 16 April 2010
The pictures below show oscilloscope traces for gas mixture 50/50 Ar/CO2, all are shaper output.
The following were obtained with increased anode voltages.
2000V, 55Fe source
2000V, Cosmic rays
2100V, 55Fe source
2100V, Cosmic rays
2200V, 55Fe source
