Difference between revisions of "Apr 17 2024"
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==Updates== | ==Updates== | ||
| − | * The electrode front end pieces 16-30 deg and 16-60 deg, two pieces each manufactured from 316 VAR SS have been polished in the SRF tumbler, UHV cleaned in the Chem room, and vacuum degassed | + | * The electrode front end pieces 16-30 deg and 16-60 deg, two pieces each manufactured from 316 VAR SS have been polished in the SRF tumbler, UHV cleaned in the Chem room, and are being vacuum degassed in the vacuum furnace room. They will be ready for assembly this Friday. |
* Gun layout drawings comparing z position of R28-2 and R30-3[[File:Haysg SKETCH -JL0091130-0100-SECTION 01-PHOTO-GUN TO VBV2102.pdf|right|middle|thumb]] | * Gun layout drawings comparing z position of R28-2 and R30-3[[File:Haysg SKETCH -JL0091130-0100-SECTION 01-PHOTO-GUN TO VBV2102.pdf|right|middle|thumb]] | ||
* The electrode is planned to be removed from the high voltage chamber, and disassembled for checking the tension on the sapphire roller springs, suspected to be too weak thus leading to irreproducibility in the laser retreat-reflection:[https://logbooks.jlab.org/entry/4278817 R30-gun laser retro-reflection checks in LERF clean room performed April 12 2024] | * The electrode is planned to be removed from the high voltage chamber, and disassembled for checking the tension on the sapphire roller springs, suspected to be too weak thus leading to irreproducibility in the laser retreat-reflection:[https://logbooks.jlab.org/entry/4278817 R30-gun laser retro-reflection checks in LERF clean room performed April 12 2024] | ||
Revision as of 12:53, 15 April 2024
Updates
- The electrode front end pieces 16-30 deg and 16-60 deg, two pieces each manufactured from 316 VAR SS have been polished in the SRF tumbler, UHV cleaned in the Chem room, and are being vacuum degassed in the vacuum furnace room. They will be ready for assembly this Friday.
- Gun layout drawings comparing z position of R28-2 and R30-3File:Haysg SKETCH -JL0091130-0100-SECTION 01-PHOTO-GUN TO VBV2102.pdf
- The electrode is planned to be removed from the high voltage chamber, and disassembled for checking the tension on the sapphire roller springs, suspected to be too weak thus leading to irreproducibility in the laser retreat-reflection:R30-gun laser retro-reflection checks in LERF clean room performed April 12 2024
Schedule Discussion
- R30-4 200 kV SharePoint site
- ATLis/ePAS one encompassing ATLis or break down in major jobs?
