200kV Wien Filter

Modeling 200kV Wien filter

J. Benesch, "Modeling the SLAC/JLab Wien filter" media:JLab-TN-15-032.pdf

TOSCA model of air-side magnet assembly, that is (w/o Ni plates in vacuum chamber)

Replace 2 layer X 14 turn/layer #16 round wire w/ 2 layer X 13 turn/layer #13 square wire

Maintain 5.00" ID chamber clearance

Coil fits within existing transverse gap (chamber to steel), but not within existing vertical gap (conflicts electrode ports)

Channels are cut into upper and lower steel yokes to allow coils to separate further (remove conflicts w/ electrode ports)

COIL RETAINER PLATES (32893-C-0008) flipped hold coil 0.124" further from mid plane (0.312 - 0.188 inches)

Larger coil width conflicts with magnet mount lugs

MAGNET MOUNT LUG (32893-C-0024) width reduced from 1.45 to 0.95 inches welded to vacuum chamber body reduced and moved

ISI/MDC version of P/N

Kurt Lesker version of P/N

Modification of Electrode Insulator

Increased length by 0.25" see for comparison media:171212_longerspacer.pdf

Modification of HV Connector Spring Guide (see JLAB DCG 32893-0137)

Increased length by 0.25" see for comparison media:171212_longerguide.pdf