Difference between revisions of "CDC tracked cosmics"

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|width="415pt"|[[Image:cosmic_amplitude_1950V_new_preamp.jpg|thumb|none|400px|new preamp, cosmics, 50/50 Ar/CO2, 1950V]]
 
|width="415pt"|[[Image:cosmic_amplitude_1950V_new_preamp.jpg|thumb|none|400px|new preamp, cosmics, 50/50 Ar/CO2, 1950V]]
 
|width="415pt"|[[Image:cosmic_amplitude_1950V_new_preamp_45deg.jpg|thumb|none|400px|new preamp, cosmics, 50/50 Ar/CO2, 1950V, 45 degrees]]
 
|width="415pt"|[[Image:cosmic_amplitude_1950V_new_preamp_45deg.jpg|thumb|none|400px|new preamp, cosmics, 50/50 Ar/CO2, 1950V, 45 degrees]]
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Zoom in on old preamp, cosmics, 50/50 Ar/CO2, 1950V
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Old preamp, n=10
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{| border="1" cellpadding="2"
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|width="415pt"|[[Image:cosmic_amplitude_1950V_old_preamp_expanded.jpg|thumb|none|400px|old preamp, cosmics, 50/50 Ar/CO2, 1950V, scale expanded]]
 
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Revision as of 13:30, 18 June 2010

At 1950V, 50/50 gas:

Amplitude spectra for channel 7, to set the threshold = pedestal-mean + n * pedestal-width. First, n=10.


Old preamp, n=10

old preamp, cosmics, 50/50 Ar/CO2, 1950V
old preamp, cosmics, 50/50 Ar/CO2, 1950V, 45 degrees

New preamp, n=10, ADC range halved (scale doubled)

new preamp, cosmics, 50/50 Ar/CO2, 1950V
new preamp, cosmics, 50/50 Ar/CO2, 1950V, 45 degrees


Zoom in on old preamp, cosmics, 50/50 Ar/CO2, 1950V Old preamp, n=10

old preamp, cosmics, 50/50 Ar/CO2, 1950V, scale expanded