Difference between revisions of "MINIDC MinVoltageStudy"
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| Line 31: | Line 31: | ||
|- | |- | ||
|1690 || -845|| [[Image:SenseWire2_1690V_Cosmic_10-12-07.jpg | 200 px]] | |1690 || -845|| [[Image:SenseWire2_1690V_Cosmic_10-12-07.jpg | 200 px]] | ||
| + | |}<br> | ||
| + | |||
| + | |||
| + | ==SenseWire 3== | ||
| + | Preamplifier voltage was set to 5.9 Volts. | ||
| + | |||
| + | {| border="1" cellpadding="20" cellspacing="0" | ||
| + | |- | ||
| + | |Sense Wire HV (Volts) | ||
| + | |Field Wire HV (Volts) | ||
| + | |Scope Image | ||
| + | |- | ||
| + | |1700 || -850|| [[Image:SenseWire3_1700V_Cosmic_10-12-07.jpg | 200 px]] | ||
| + | |- | ||
| + | |1690 || -845|| [[Image:SenseWire3_1690V_Cosmic_10-12-07.jpg | 200 px]] | ||
| + | |}<br> | ||
| + | |||
| + | |||
| + | ==SenseWire 4== | ||
| + | Preamplifier voltage was set to 5.9 Volts. | ||
| + | |||
| + | {| border="1" cellpadding="20" cellspacing="0" | ||
| + | |- | ||
| + | |Sense Wire HV (Volts) | ||
| + | |Field Wire HV (Volts) | ||
| + | |Scope Image | ||
| + | |- | ||
| + | |1700 || -850|| [[Image:SenseWire4_1700V_Cosmic_10-12-07.jpg | 200 px]] | ||
| + | |- | ||
| + | |1690 || -845|| [[Image:SenseWire4_1690V_Cosmic_10-12-07.jpg | 200 px]] | ||
| + | |}<br> | ||
| + | |||
| + | ==SenseWire 5== | ||
| + | Preamplifier voltage was set to 5.9 Volts. | ||
| + | |||
| + | {| border="1" cellpadding="20" cellspacing="0" | ||
| + | |- | ||
| + | |Sense Wire HV (Volts) | ||
| + | |Field Wire HV (Volts) | ||
| + | |Scope Image | ||
| + | |- | ||
| + | |1700 || -850|| [[Image:SenseWire5_1700V_Cosmic_10-12-07.jpg | 200 px]] | ||
| + | |- | ||
| + | |1690 || -845|| [[Image:SenseWire5_1690V_Cosmic_10-12-07.jpg | 200 px]] | ||
|}<br> | |}<br> | ||
[http://www.iac.isu.edu/mediawiki/index.php/Mini-prototype#Inspecting_Detector_Signals Back to Mini Prototype page] | [http://www.iac.isu.edu/mediawiki/index.php/Mini-prototype#Inspecting_Detector_Signals Back to Mini Prototype page] | ||
Revision as of 00:29, 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.
| Sense Wire HV (Volts) | Field Wire HV (Volts) | Scope Image |
| 1700 | -850 | 
|
| 1690 | -845 | 
|
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 | 
|
| 1690 | -845 | 200 px |
SenseWire 3
Preamplifier voltage was set to 5.9 Volts.
| Sense Wire HV (Volts) | Field Wire HV (Volts) | Scope Image |
| 1700 | -850 | 
|
| 1690 | -845 | 
|
SenseWire 4
Preamplifier voltage was set to 5.9 Volts.
| Sense Wire HV (Volts) | Field Wire HV (Volts) | Scope Image |
| 1700 | -850 | 200 px |
| 1690 | -845 | 200 px |
SenseWire 5
Preamplifier voltage was set to 5.9 Volts.
| Sense Wire HV (Volts) | Field Wire HV (Volts) | Scope Image |
| 1700 | -850 | 200 px |
| 1690 | -845 | 200 px |
