Difference between revisions of "MINIDC MinVoltageStudy"
Jump to navigation
Jump to search
| Line 2: | Line 2: | ||
We will lower the operating voltage and take scope pictures to determine the operating point for the mini chamber. | We will lower the operating voltage and take scope pictures to determine the operating point for the mini chamber. | ||
| − | + | {| border="1" cellpadding="20" cellspacing="0" | |
| + | |- | ||
| + | |Sevse Wire | ||
| + | |Sense Wire HV (Volts) | ||
| + | |Field Wire HV (Volts) | ||
| + | |- | ||
| + | |1 || -850|| | ||
| + | |- | ||
| + | |2 || -845|| | ||
| + | |- | ||
| + | |3 || -840|| | ||
| + | |- | ||
| + | |4 || -835|| | ||
| + | |- | ||
| + | |5 || -830|| | ||
| + | |- | ||
| + | |6 || -825|| | ||
| + | |- | ||
| + | |7 || || | ||
| + | |}<br> | ||
==SenseWire 1== | ==SenseWire 1== | ||
Revision as of 18:01, 18 October 2007
Operating Voltage Study
We will lower the operating voltage and take scope pictures to determine the operating point for the mini chamber.
| Sevse Wire | Sense Wire HV (Volts) | Field Wire HV (Volts) |
| 1 | -850 | |
| 2 | -845 | |
| 3 | -840 | |
| 4 | -835 | |
| 5 | -830 | |
| 6 | -825 | |
| 7 |
SenseWire 1
Preamplifier voltage was set to 5.9 Volts.
| Sense Wire HV (Volts) | Field Wire HV (Volts) | Scope Image |
| 1700 | -850 | 
|
| 1690 | -845 | 
|
| 1680 | -840 | 
|
| 1670 | -835 | 
|
| 1660 | -830 | 
|
| 1650 | -825 | 
|
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 went 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 |
| 1705 | -855 | 
|
| 1695 | -850 |   
|
| 1685 | -845 |   
|
| 1675 | -840 |   
|
| 1665 | -835 |  
|
| 1655 | -830 | 
|
SenseWire 3
Preamplifier voltage was set to 5.9 Volts.
| Sense Wire HV (Volts) | Field Wire HV (Volts) | Scope Image |
| 1700 | -850 | 
|
| 1690 | -845 | 
|
| 1685 | -845 | 
|
| 1675 | -840 | 
|
| 1665 | -836 | 
|
| 1655 | -831 | 
|
| 1645 | -826 |  
|
| 1635 | -820 |  
|
SenseWire 4
Preamplifier voltage was set to 5.9 Volts.
| Sense Wire HV (Volts) | Field Wire HV (Volts) | Scope Image |
| 1705 | -855 | 
|
| 1695 | -850 | 
|
| 1685 | -845 | 
|
| 1675 | -840 | 
|
| 1665 | -835 | 
|
SenseWire 5
Preamplifier voltage was set to 5.9 Volts.
| Sense Wire HV (Volts) | Field Wire HV (Volts) | Scope Image |
| 1705 | -855 | 
|
| 1695 | -850 | 
|
| 1685 | -845 |  
|
| 1675 | -840 |  
|
| 1665 | -835 | 
|
SenseWire 6
Preamplifier voltage was set to 5.9 Volts.
| Sense Wire HV (Volts) | Field Wire HV (Volts) | Scope Image |
| 1705 | -855 |  
|
| 1695 | -850 |  
|
| 1685 | -845 |  
|
| 1675 | -840 |  
|
| 1665 | -835 |  
|
| 1655 | -830 |   
|
| 1645 | -825 | 
|
SenseWire 7
Preamplifier voltage was set to 5.9 Volts.
| Sense Wire HV (Volts) | Field Wire HV (Volts) | Scope Image |
| 1705 | -855 |   
|
| 1695 | -850 |  
|
| 1685 | -845 |   
|
| 1675 | -840 |   
|
| 1665 | -835 |   
|
| 1655 | -830 |   
|
| 1645 | -825 |   
|