Difference between revisions of "March 31, 2017 - 200kV gun upgrade meeting"
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* Then ... vacuum fire electrode 900C, barrel polish, assemble to insulator | * Then ... vacuum fire electrode 900C, barrel polish, assemble to insulator | ||
* Status of parts | * Status of parts | ||
| + | Ceramic bushing holder ready from shop [[media:170330_bushing.pdf]] | ||
| + | Ordered two centering ceramics - 4-6 weeks | ||
===Vacuum chamber/considerations=== | ===Vacuum chamber/considerations=== | ||
| Line 15: | Line 17: | ||
===Gun2 NEG Tube=== | ===Gun2 NEG Tube=== | ||
* BPM discussion w/ Musson occurred on Monday, considerations: | * BPM discussion w/ Musson occurred on Monday, considerations: | ||
| − | + | Antenna : stripline or wire (mini or weld) [[media:170327_stripline.pdf]] | |
| − | + | Position and orientation of antenna v. can for transmission line, length of antenna v. energy | |
| − | + | NEG coat surfaces of pipe, not can? TBD | |
| − | |||
* Met in tunnel to develop first pass ME design [https://logbooks.jlab.org/entry/3468102 Logbook pic/layout of the existing Gun2 NEG] | * Met in tunnel to develop first pass ME design [https://logbooks.jlab.org/entry/3468102 Logbook pic/layout of the existing Gun2 NEG] | ||
| − | + | First iteration [[media:NEGTUBE_MARCH30.pdf]] | |
===Gun3 Removal=== | ===Gun3 Removal=== | ||
| − | * Matt check with Willeke next week | + | * Matt check with Willeke next week during JLEIC meeting Gun3 |
| − | + | * Remove Gun3 table, rebuild 8" chamber w/ extractor, RGA, GP-100 on 80/20 stand, recoup Gun3 MFH solenoid | |
| − | * Remove Gun3 table, rebuild 8" chamber w/ extractor, RGA, GP-100 on 80/20 stand | + | Planning for May - Marcy submitted [http://opsweb.acc.jlab.org/CSUEApps/atlis/task/17278 ATLIS task] for the job |
| − | |||
| − | |||
=== Eliminating Gun Switch Software === | === Eliminating Gun Switch Software === | ||
===Spellman HVPS update=== | ===Spellman HVPS update=== | ||
| − | + | * Time to get Mike Johnson started on Spellman at UITF? | |
| − | * Time to get | + | John/Brad trying to communicate to Spellman w/ their software |
| + | Need old version of JAVA to get started | ||
===Radmon update=== | ===Radmon update=== | ||
Revision as of 06:20, 31 March 2017
New action items
Electrode/insulator design/fabrication
- Gabriel assessed fields to vacuum chamber, modified shed radius
- S&A insulator measurements
- ME design for shop ... goal was end of March !!!
- Then ... vacuum fire electrode 900C, barrel polish, assemble to insulator
- Status of parts
Ceramic bushing holder ready from shop media:170330_bushing.pdf Ordered two centering ceramics - 4-6 weeks
Vacuum chamber/considerations
- Retain leak valve, add right angle valve through first bake, at least
- Retain electrical isolation and NEG activation at 100C
- Pick up ceramics, blow out NEG
Gun2 NEG Tube
- BPM discussion w/ Musson occurred on Monday, considerations:
Antenna : stripline or wire (mini or weld) media:170327_stripline.pdf Position and orientation of antenna v. can for transmission line, length of antenna v. energy NEG coat surfaces of pipe, not can? TBD
- Met in tunnel to develop first pass ME design Logbook pic/layout of the existing Gun2 NEG
First iteration media:NEGTUBE_MARCH30.pdf
Gun3 Removal
- Matt check with Willeke next week during JLEIC meeting Gun3
- Remove Gun3 table, rebuild 8" chamber w/ extractor, RGA, GP-100 on 80/20 stand, recoup Gun3 MFH solenoid
Planning for May - Marcy submitted ATLIS task for the job
Eliminating Gun Switch Software
Spellman HVPS update
- Time to get Mike Johnson started on Spellman at UITF?
John/Brad trying to communicate to Spellman w/ their software Need old version of JAVA to get started