Difference between revisions of "Apr 17 2024"
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* 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. | * 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 electrode is planned to be removed from the high voltage chamber, and disassembled for checking the sapphire roller springs and how well do they push the puck against the Pierce electrode front end. We will also compare with two other Tee-Electrode assemblies already in the clean room:[https://logbooks.jlab.org/entry/4278817 R30-gun laser retro-reflection checks in LERF clean room performed April 12 2024] |
==Schedule Discussion== | ==Schedule Discussion== | ||
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==Pictures== | ==Pictures== | ||
| − | *[[File:R30-4 gun elecctrode front end pieces after barrel polishing top view.jpg]] | + | |
| − | *[[File:R30-4 gun elecctrode front end pieces after barrel polishing iso view.jpg]] | + | * [[File:R30-4 gun elecctrode front end pieces after barrel polishing top view.jpg]] |
| + | * [[File:R30-4 gun elecctrode front end pieces after barrel polishing iso view.jpg]] | ||
=<br />= | =<br />= | ||
[https://wiki.jlab.org/ciswiki/index.php/200_kV_Polarized_Gun Return to 200 kV Gun page] | [https://wiki.jlab.org/ciswiki/index.php/200_kV_Polarized_Gun Return to 200 kV Gun page] | ||
Revision as of 13:06, 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 sapphire roller springs and how well do they push the puck against the Pierce electrode front end. We will also compare with two other Tee-Electrode assemblies already in the clean room: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?
