Difference between revisions of "Preamp 4: 55Fe 'scope traces at lower voltage"
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| − | 1900V, 55Fe source, old preamp (left) and preamp4 (right) | + | 1900V, 55Fe source, old preamp (left, 200 mV/div) and preamp4 (right, 100 mv/div) |
{| border="1" cellpadding="2" | {| border="1" cellpadding="2" | ||
|width="280pt"|[[Image:old_preamp_55Fe_1900V.jpg|thumb|none|270px|old preamp, 55Fe, 50/50 Ar/CO2, 1900V]] | |width="280pt"|[[Image:old_preamp_55Fe_1900V.jpg|thumb|none|270px|old preamp, 55Fe, 50/50 Ar/CO2, 1900V]] | ||
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| − | 1950V, 55Fe source, old preamp (left) and preamp4 (right) | + | 1950V, 55Fe source, old preamp (left, 200 mV/div) and preamp4 (right, 100 mv/div) |
{| border="1" cellpadding="2" | {| border="1" cellpadding="2" | ||
|width="280pt"|[[Image:old_preamp_55Fe_1950V.jpg|thumb|none|270px|old preamp, 55Fe, 50/50 Ar/CO2, 1950V]] | |width="280pt"|[[Image:old_preamp_55Fe_1950V.jpg|thumb|none|270px|old preamp, 55Fe, 50/50 Ar/CO2, 1950V]] | ||
Latest revision as of 15:20, 14 June 2010
The pictures below show oscilloscope traces for gas mixture 50/50 Ar/CO2 and 55Fe source, all are shaper output.
Preamp 4 is described in GlueX-doc-1364, table 2, row 2; the 'old' preamp is the original one, GPC-01.
1850V, 55Fe source, old preamp (left) and preamp4 (right)
As above, for longer
1900V, 55Fe source, old preamp (left, 200 mV/div) and preamp4 (right, 100 mv/div)
As above, for longer
1950V, 55Fe source, old preamp (left, 200 mV/div) and preamp4 (right, 100 mv/div)
As above, for longer
