Bakeout Progression and High Priority NTC Activities Update
Explore the latest operations update from the NSTX-U Physics Meeting with insights on the bakeout progression goals, key activities, expected schedule, and more. Dive into the details of the bakeout process, challenges faced, and upcoming tasks post-bakeout, including critical activities following the completion. Stay informed about the ongoing developments and timelines in the project.
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Presentation Transcript
Operations Update Stefan Gerhardt NSTX-U Physics Meeting LSB B318, PPPL 10/6/2015 NSTX-U Physics Meeting-Operations Update, Gerhardt (10/6/2015) 1
Bakeout Progression Goal: 3.5x10-6 torr at elevated temperature Started on 9/12/2015 Observed significant poloidal variations in the temperature. Maxed of the He skip power. Paused on 9/18/2015 Had achieved maybe 1.4x10-5, from 1x10-3 PF-1b water heating system was improved Insulation on the manifolds, plumbing was improved Restarted on 9/23/2015, 9/24/2015, 9/28/2015 Twice had to pause for leak repairs on hot He system, fix bad motor coupling on the He blower Blower started failing 9/27/2015 Blower basically failed on 9/30/2015 Sent to factory for rebuild on 9/30/2015, returned and reinstalled on 10/2/2015 Bakeout restarted 10/6/2015 2 weeks at temperature projects to ending on 10/21/2015 We will be assessing progress and make a decision check 8:30 meeting minutes or just ask. NSTX-U Physics Meeting-Operations Update, Gerhardt (10/6/2015) 2
High Priority NTC Activities Following the Bake Shutter and TIV connections to the PLC Boronization system PTPs Bay B plasma TV reinstall EIES Fibers IPCalculator Tuning RWM coil high-pots, resistance checks, polarity checks MAPP Electrical Cabling for Langmuir Probes Zeus, LoWEUS, and MonaLisa installations Ground Loop Cleanup Other cameras Fibers for other spectroscopic diagnostics Other work can be done, especially away from the machine and if you are providing your own labor get work permits, procedures, work packages ready. NSTX-U Physics Meeting-Operations Update, Gerhardt (10/6/2015) 3
Expected Schedule (subject to change including scenarios where things move earlier.) 10/21/2015: End the bake 10/21/2015-11/8/2015: Bakeout Recovery and Final Activities See previous slides 11/9/2015: Begin the ISTP 3-5 days? 11/16/2015: Commissioning ST workshop (11/2/2015-11/6/2015): Under favorable circumstances, the ISTP may overlap. APS week (11/16/2015-11/20/2015): No operations due to APS + DOE Conduct of Operations training NSTX-U Physics Meeting-Operations Update, Gerhardt (10/6/2015) 4
