Difference between revisions of "MINIDC MinVoltageStudy"
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|1685 || -845|| [[Image:SenseWire6_1685V_Cosmic_10-12-07.jpg | 200 px]][[Image:SenseWire6_1685V_Cosmic_1_10-12-07.jpg | 200 px]] | |1685 || -845|| [[Image:SenseWire6_1685V_Cosmic_10-12-07.jpg | 200 px]][[Image:SenseWire6_1685V_Cosmic_1_10-12-07.jpg | 200 px]] | ||
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− | |1675 || -840|| [[Image:SenseWire6_1675V_Cosmic_10-12-07.jpg | 200 px]][[Image: | + | |1675 || -840|| [[Image:SenseWire6_1675V_Cosmic_10-12-07.jpg | 200 px]][[Image:SenseWire6_1675V_Cosmics_1_10-12-07.jpg | 200 px]] |
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|1665 || -835|| [[Image:SenseWire6_1665V_Cosmic_10-12-07.jpg | 200 px]] | |1665 || -835|| [[Image:SenseWire6_1665V_Cosmic_10-12-07.jpg | 200 px]] |
Revision as of 04:42, 16 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 | ![]() |
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 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 |
1705 | -855 | ![]() |
1695 | -850 | ![]() |
1685 | -845 | ![]() |
1675 | -840 | ![]() |
1665 | -835 | ![]() |
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 | ![]() |
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 | ![]() |