Difference between revisions of "MINIDC MinVoltageStudy"
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==SenseWire 1== | ==SenseWire 1== | ||
| + | Preamplifier voltage was set to 5.9 Volts. We saw a lot of noise ( 40 mV peak to peak) when increasing the preamp voltage from 2.2 V to 5.7 Volts. After 5.7 volts the noise when back to a noise level of 8 mV peak to peak which is smaller than the [http://www.iac.isu.edu/mediawiki/index.php/Image:PlasticaNoise_10-9-07.jpg 16 mV peak to peak noise observed 3 days ago] on the sense wire (capacitor side)before the preamp. | ||
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| + | {| border="1" cellpadding="20" cellspacing="0" | ||
| + | |- | ||
| + | |Sense Wire HV (Volts) | ||
| + | |Field Wire HV (Volts) | ||
| + | |Scope Image | ||
| + | |- | ||
| + | |1700 || -850|| [[Image:SenseWire1_1700V_Cosmic_10-12-07.jpg | 200 px]] | ||
| + | |}<br> | ||
| + | |||
| + | [http://www.iac.isu.edu/mediawiki/index.php/Mini-prototype#Inspecting_Detector_Signals Back to Mini Prototype page] | ||
==Sense wire 2== | ==Sense wire 2== | ||
Revision as of 00:04, 13 October 2007
Operating Voltage Study
We will lower the operating voltage and take scope pictures to determine the operating point for the mini chamber.
SenseWire 1
Preamplifier voltage was set to 5.9 Volts. We saw a lot of noise ( 40 mV peak to peak) when increasing the preamp voltage from 2.2 V to 5.7 Volts. After 5.7 volts the noise when back to a noise level of 8 mV peak to peak which is smaller than the 16 mV peak to peak noise observed 3 days ago on the sense wire (capacitor side)before the preamp.
| Sense Wire HV (Volts) | Field Wire HV (Volts) | Scope Image |
| 1700 | -850 | 
|
Sense wire 2
Preamplifier voltage was set to 5.9 Volts. We saw a lot of noise ( 40 mV peak to peak) when increasing the preamp voltage from 2.2 V to 5.7 Volts. After 5.7 volts the noise when back to a noise level of 8 mV peak to peak which is smaller than the 16 mV peak to peak noise observed 3 days ago on the sense wire (capacitor side)before the preamp.
| Sense Wire HV (Volts) | Field Wire HV (Volts) | Scope Image |
| 1700 | -850 | 
|