Difference between revisions of "200kV Wien Filter"

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-== ME Design  ==
-====Wien filter drawings are up to date (as of June 2017)====
-: ''M:\me-group\machie\wien filter''
-:: * main folder has the original fabrication drawings we used.
-:: * sub folder that has revised version of the original drawings to show the latest as-built changes.
-:: * sub folder labeled "200KV" that has drawings for the differences in the 200KV wien filter.
-:: * copy of ECO 1046 that has the analysis of the original vacuum chamber welds.
-:: * a spreadsheet that lists all the drawings and revision status and applicability.
-::: Note : we discussed making electrodes from one solid piece of stainless steel instead of five pieces brazed together.
-== Magnet Design ==
-==== Jay's TOSCA Modeling  ====
-: 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)
-:: [[media:wien_noNi_B_10A.table.txt]]
-:: [[media:wien_noNi_B_15A.table.txt]]
-==== Coil Modified for 20Amp operation ====
-: 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
-==== Magnet Steel Modifications ====
-: 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)
-==== Vacuum Chamber Modifications ====
-: 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
-== High Voltage Design ==
-==== HV feedthroughs (20kV/15A) JLAB DCG 32893-0020====
-: ISI/MDC version of P/N
-:: [https://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&wr=US&p=9272007 ISI=9272001 / MDC=0815002] (20kV/15A)
-:: [https://www.mdcvacuum.com/DisplayPart.aspx?p=9912452 MDC install kit (old ISI # 0263202 not found)]
-: Kurt Lesker version of P/N
-:: [http://www.lesker.com/newweb/feedthroughs/instrument_feedthroughs_shv20_singleend.cfm?pgid=cf Kurt Lesker= IFTXE011152]
-:: [http://www.lesker.com/newweb/feedthroughs/cablinginstruction_shv20.cfm?pgid=0 20kV feedthrough/cabling (RG-8U)]
-==== Vacuum modifications ====
-: Phil/Danny increased the length of the Electrode Insulator (see JLAB DCG 32893-0112)
-:: Increased length by 0.25" see for comparison [[media:171212_longerspacer.pdf]]
-: Phil/Danny increased the length of the HV Connector Spring Guide (see JLAB DCG 32893-0137)
-:: Increased length by 0.25" see for comparison [[media:171212_longerguide.pdf]]
-==== Tests ====
-: [https://logbooks.jlab.org/entry/3430990 Brief bench test of 20kV]
-==== Power Supplies ====
-: +/- 30 kV HVPS [https://www.matsusada.com/product/psel/hvps1/rack/000042/ AE Series] AE-30P1-LG (+30kV) and AE-30N1-LG (-30kV)

Difference between revisions of "200kV Wien Filter"

Latest revision as of 14:06, 27 August 2020

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