Flying Wire & IPM Update. 12/3/2009. IPM Work. IPM Design Studies for a second Mark –II for Main Injector and Booster have begun. Tev IPM teaching session degenerates into another onion layer being pealed away. We found two additional subtle issues. Tev IPM Issue Fixes.
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After Both QIE and HV Delay Fixes
QIE Piecewise Linear Fix
Measurement Before fixes
PBJ and IPM Plot after both
Vertical has been replaced this morning. Waiting for beam. New lid with brand new feed through installed. Pumped down, let up, inspected, and pumped down again.
Recycler: No Change
Vertical has a binding feed-through. Problem is inside.
Wire mounted on lid at E4R
TEV: No Change
All 3 wires are operational.
Horizontal and Vertical Operational
Electrostatic collection of Ions with 8KV Clearing Field
Need to be Determined
Looking at Magnetic containment for collection of Electrons as in the mark-II in MI.
Probably will NOT use MI style electrostatic cans
(Mig-Jen Has looked at 8 GeV beam and determined that some oscillations are not seen well electrostatically at Q102. Needs more study.)
Space Charge effects at 8GeV dominate at extraction.
Can use magnets to contain electrons.
(Has been modeled by Alan Hahn and Andreas Jansson
but should be updated.)