Difference between revisions of "WF Wien Filters (200 kV upgrade)"

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These pages contain materials for modifying the standard CEBAF Wien filter design (originally SLAC 100kV Wien filter) for operation at 200kV.
 
These pages contain materials for modifying the standard CEBAF Wien filter design (originally SLAC 100kV Wien filter) for operation at 200kV.
  
===200 kV Wien HV Controls===
+
===200 keV Wien HV Controls===
 
::[[200kV High Voltage Power Supply & Controls]]
 
::[[200kV High Voltage Power Supply & Controls]]
  
===200 kV Wien Magnet===
+
===200 keV Wien SPIN Controls===
 +
::[[Media:WienSpinControlbyRiad.pptx]]
 +
 
 +
===200 keV Wien Magnet===
 
::Feb 11, 2020 - Final coil design [[media:200KeVWienFIlter-32893-D-0131.pdf]]
 
::Feb 11, 2020 - Final coil design [[media:200KeVWienFIlter-32893-D-0131.pdf]]
 
::Mar 10, 2020 - Vendor has begun coil winding [[media:20200305_145427.jpg]]
 
::Mar 10, 2020 - Vendor has begun coil winding [[media:20200305_145427.jpg]]
  
===200 kV Wien Assembly===
+
===200 keV Wien Magnetic Field Maps===
 +
::[[Media:Vertical Wien Integrals (19.9A Hyst) with SCE410.xlsx]]
 +
::[[Media:V-Wien_FieldMap_Analysis.pptx]]
 +
::[[Media:V-Wien_FieldMap_data.xlsx]]
 +
::[[Media:Horizontal Wien Integrals (19.9A Hyst) with SCE410 CORRECT Ni plates.xlsx]]
 +
::[[Media:H-Wien_FieldMap_Analysis.pptx]]
 +
::[[Media:H-Wien_FieldMap_data.xlsx]]
 +
::[[Media:MWF1I04.txt]]
 +
::[[Media:MWF1I06.txt]]
 +
::[[Media:wien_maps.png]]
 +
 
 +
===200 keV Wien Assembly===
 +
::[[Media:Vertical & Horizontal Wien assembly procedure Rev01 April 6 2021.docx]]
 +
:::[https://wiki.jlab.org/ciswiki/index.php/AIPINJ_-_S%26A_Transmittals Link to Wien S&A reports after assembly]
 
::[[Media:UITF Wien filter traveler May 11 2020.docx]]
 
::[[Media:UITF Wien filter traveler May 11 2020.docx]]
 
::[[Media:Wien rebuild work update week of Oct 5.pptx]]
 
::[[Media:Wien rebuild work update week of Oct 5.pptx]]
 +
 +
===Field maps for GPT simulations===
 +
*[https://wiki.jlab.org/ciswiki/index.php/Gabriel_Palacios-Serrano Link to Gabriel's CST field maps and GPT simulations]
 +
*[[Media:Wien field maps documentation.pdf]]
 +
 +
===Making Nickel End Mirror Plates (Jan 2021)===
 +
 +
:: Riad identified H-Wien magnetic Ni end clamp plates were not as good magnetically as V-Wien
 +
:: (5) Ni 200/201 plates were ordered, fabricated by the machine shop [[media:32893-0011 end plate marked up.pdf]]
 +
:: Material certifications here:  [[media:210104_NickelCerts.pdf]]
 +
:: Machined end plates cleaned with solvent only (Micro-90 can react/etch Nickel)
 +
:: Jay's info for anneal Ni 200/201
 +
::: * [https://www.specialmetals.com/assets/smc/documents/alloys/nickel-duranickel/nickel-200-201.pdf Vendor link] and local copy of file here [[media:nickel-200-201.pdf]]
 +
::: * See page 13 "heating" for annealing info  Higher temperature than I expected.  They don't mention vacuum furnaces but the ones in the TL should suffice if all the contaminants from brazing can be removed.  If not, perhaps the inductance furnace used for cavities, which is clean; SRF might not want any nickel in it, however.
 +
:: Annealing performed by Scott Williams per vendor spec (1450F for 30min)
  
 
===CEBAF Wien Filter Upgrade Iterations===
 
===CEBAF Wien Filter Upgrade Iterations===

Latest revision as of 09:03, 23 April 2021

These pages contain materials for modifying the standard CEBAF Wien filter design (originally SLAC 100kV Wien filter) for operation at 200kV.

200 keV Wien HV Controls

200kV High Voltage Power Supply & Controls

200 keV Wien SPIN Controls

Media:WienSpinControlbyRiad.pptx

200 keV Wien Magnet

Feb 11, 2020 - Final coil design media:200KeVWienFIlter-32893-D-0131.pdf
Mar 10, 2020 - Vendor has begun coil winding media:20200305_145427.jpg

200 keV Wien Magnetic Field Maps

Media:Vertical Wien Integrals (19.9A Hyst) with SCE410.xlsx
Media:V-Wien_FieldMap_Analysis.pptx
Media:V-Wien_FieldMap_data.xlsx
Media:Horizontal Wien Integrals (19.9A Hyst) with SCE410 CORRECT Ni plates.xlsx
Media:H-Wien_FieldMap_Analysis.pptx
Media:H-Wien_FieldMap_data.xlsx
Media:MWF1I04.txt
Media:MWF1I06.txt
Media:wien_maps.png

200 keV Wien Assembly

Media:Vertical & Horizontal Wien assembly procedure Rev01 April 6 2021.docx
Link to Wien S&A reports after assembly
Media:UITF Wien filter traveler May 11 2020.docx
Media:Wien rebuild work update week of Oct 5.pptx

Field maps for GPT simulations

Making Nickel End Mirror Plates (Jan 2021)

Riad identified H-Wien magnetic Ni end clamp plates were not as good magnetically as V-Wien
(5) Ni 200/201 plates were ordered, fabricated by the machine shop media:32893-0011 end plate marked up.pdf
Material certifications here: media:210104_NickelCerts.pdf
Machined end plates cleaned with solvent only (Micro-90 can react/etch Nickel)
Jay's info for anneal Ni 200/201
* Vendor link and local copy of file here media:nickel-200-201.pdf
* See page 13 "heating" for annealing info Higher temperature than I expected. They don't mention vacuum furnaces but the ones in the TL should suffice if all the contaminants from brazing can be removed. If not, perhaps the inductance furnace used for cavities, which is clean; SRF might not want any nickel in it, however.
Annealing performed by Scott Williams per vendor spec (1450F for 30min)

CEBAF Wien Filter Upgrade Iterations

200kV Wien filter - FINAL - This is for the two rebuilt Wien filters for CEBAF.
200kV Wien filter - V3 - Third iteration modeled in CST by Gabriel with improved 40 kV feedthroughs has demonstrated (2019) 20kV per plate at UITF on a test stand but test still undergoing. Intended as a testbed for 20kV switch chassis test in preparation for implementation at CEBAF.
200kV Wien filter - V2 - Second iteration built using 20kV feedthroughs and HV tested in UITF beamline 2018 to ~12 kV limited by large vacuum excursions
200kV Wien filter - V1 - First iteration to modify CEBAF Wien filter for 200kV operation, fabricated per Jay's proposal, and installed at UITF 2017

Wien Filter References