May 19, 2017 - 200kV gun upgrade meeting
200kV Gun
- Task and Timeline Gantt chart => media:170421_CHG.pdf
- The electrode is out of the machine shop
- The key was filed to prevent it from being jammed in the electrode
- With the key fixed, the electrode assembly was measured by S&A, with and w/o the key. Danny M. compared to the model: "so the height is correct and the pitch is off 0.008 inches. those numbers seem o.k. much better than the previous numbers, and we know the key fits o.k."
- Bubba polished the electrode with 320 grit sandpaper in prep for barrel polishing with corncob.
- The electrode has been ultrasonic cleaned in micro in preparation for vacuum firing to 900C.
Gun2 NEG Tube
- Updated NEG tube => media:NEGTUBE_MAY03.pdf
- M20 Old Assembly Modification media:0990.pdf
- M20 New Assembly Can media:0991.pdf
- M20 New Assembly 6.00 x 4.500 reducer flangemedia:0.992.pdf
Gun3 Removal and Diagnostics Chamber Installation
- May 8-12 => Remove and replace Gun3 ATLIS task
Eliminating Gun Switch Software
- April 28 => Remove gun switch software ATLIS task
- Software removed and interlocks tested ELOG entry
- Yet to do a) remove VBV3I02 from special interlock and b) swap PLC for relays