MINIDC MinVoltageStudy

From New IAC Wiki
Revision as of 20:09, 15 October 2007 by Oborn (talk | contribs) (→‎SenseWire 5)
Jump to navigation Jump to search

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 SenseWire1 1700V Cosmic 10-12-07.jpg
1690 -845 SenseWire1 1690V Cosmic 10-12-07.jpg
1680 -840 SenseWire1 1680V Cosmics 10-12-07.jpg
1670 -835 SenseWire1 1670V Cosmics 10-12-07.jpg
1660 -830 SenseWire1 1660V Cosmics 10-12-07.jpg
1650 -825 SenseWire1 1650V Cosmics 10-12-07.jpg


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 SenseWire2 1700V Cosmic 10-12-07.jpg
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 SenseWire3 1700V Cosmic 10-12-07.jpg
1690 -845 SenseWire3 1690V Cosmic 10-12-07.jpg
1685 -845 SenseWire3 1685V Cosmic 10-12-07.jpg
1675 -840 SenseWire3 1675V Cosmic 1 10-12-07.jpg
1665 -836 SenseWire3 1665V Cosmic 10-12-07.jpg
1655 -831 SenseWire3 1655V Cosmic 10-12-07.jpg
1645 -826 SenseWire3 1645V Cosmic 10-12-07.jpgSenseWire3 1645V Cosmic 1 10-12-07.jpg
1635 -820 SenseWire3 1635V Cosmic 10-12-07.jpgSenseWire3 1635V Cosmic 1 10-12-07.jpg


SenseWire 4

Preamplifier voltage was set to 5.9 Volts.

Sense Wire HV (Volts) Field Wire HV (Volts) Scope Image
1705 -855 SenseWire 4 1705V Cosmics 10-12-07.jpg
1695 -850 SenseWire 4 1695V Cosmics 10-12-07.jpg
1685 -845 SenseWire4 1685V Cosmics 10-12-07.jpg
1675 -840 SenseWire4 1675V Cosmic 10-12-07.jpg
1665 -835 SenseWire 4 1665V Cosmics 10-12-07.jpg


SenseWire 5

Preamplifier voltage was set to 5.9 Volts.

Sense Wire HV (Volts) Field Wire HV (Volts) Scope Image
1705 -855 SenseWire5 1705V Cosmic 10-12-07.jpg
1690 -845 200 px


SenseWire 6

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



Back to Mini Prototype page