Difference between revisions of "MiniDC PreampOutput 10 10 07"
Jump to navigation
Jump to search
| Line 17: | Line 17: | ||
I set the scope threshold to below -14 mV based on [http://iac.isu.edu/mediawiki/index.php/MiniDC_Signals_10-0-07 previous measurements]. | I set the scope threshold to below -14 mV based on [http://iac.isu.edu/mediawiki/index.php/MiniDC_Signals_10-0-07 previous measurements]. | ||
| + | |||
| + | [[Image:MINIDC_Sense-Preamp_Output_10-10-07_SenseTrig1.jpg | 200 px]] | ||
| + | [[Image:MINIDC_Sense-Preamp_Output_10-10-07_SenseTrig2.jpg | 200 px]] | ||
| + | [[Image:MINIDC_Sense-Preamp_Output_10-10-07_SenseTrig3.jpg | 200 px]] | ||
| + | [[Image:MINIDC_Sense-Preamp_Output_10-10-07_SenseTrig4.jpg | 200 px]] | ||
| + | [[Image:MINIDC_Sense-Preamp_Output_10-10-07_SenseTrig5.jpg | 200 px]] | ||
=Scope pictures triggering on preamp output (pin 2) = | =Scope pictures triggering on preamp output (pin 2) = | ||
Revision as of 00:14, 16 October 2007
Drift chamber High voltage settings
| HV settings | |
| Wire | Volts |
| Sense | 1800 |
| Field | -800 |
| Guard | 800 |
I should have set the Field and Guard wires to 900 volts according to Mac's e-mail reporting his Garfield simulation results. Next time.
Scope pictures triggering on sense wire C2
I set the scope threshold to below -14 mV based on previous measurements.
Scope pictures triggering on preamp output (pin 2)
I found that a trigger threshold of -100 mV discriminated well between noise and pulses consistent with previous ionization events.