Name: Six-Month Follow-Up on Action Items of Feb 2016 CEBAF Field Emitter Workshop
Start: 2016-09-12T12:25:00-04:00
End: 2016-09-12T15:30:00-04:00
Location: Test Lab

Six-Month Follow-Up on Action Items of Feb 2016 CEBAF Field Emitter Workshop

Monday, September 12, 2016 - 12:25 PM

Monday, September 12, 2016
1:25 PM Introduction - Rong-Li Geng (Thomas Jefferson National Accelerator Facility)
Introduction
- Rong-Li Geng (Thomas Jefferson National Accelerator Facility)
1:25 PM - 1:30 PM
Room: TL1227
1:30 PM Field emission onset data from present C50 module C50-12 CMTF testing and comparison against prior C50 modules (1-11) - Michael Drury (Jefferson :Lab)
Field emission onset data from present C50 module C50-12 CMTF testing and comparison against prior C50 modules (1-11)
- Michael Drury (Jefferson :Lab)
1:30 PM - 1:35 PM
Room: TL1227
1:35 PM Field Emission onset data from VTA testing of C50-12 cavity pairs as compared to prior C50 cavities pairs - Liang Zhao (JLab/W&M)
Field Emission onset data from VTA testing of C50-12 cavity pairs as compared to prior C50 cavities pairs
- Liang Zhao (JLab/W&M)
1:35 PM - 1:40 PM
Room: TL1227
1:40 PM Improved procedure and practice in C50-12 cavity string assembly as compared to prior C50 strings - Danny Forehand (JLAB)
Improved procedure and practice in C50-12 cavity string assembly as compared to prior C50 strings
- Danny Forehand (JLAB)
1:40 PM - 1:50 PM
Room: TL1227
1:50 PM Improved procedure and practice in C50-12 cryomodule assembly as compared to prior C50 cryomodules with a special attention to the step of supply-end-can side UHV manifold attachment - Frank Humphries (JLAB) John Fischer (JLAB) Gianluigi Ciovati (JLab)
Improved procedure and practice in C50-12 cryomodule assembly as compared to prior C50 cryomodules with a special attention to the step of supply-end-can side UHV manifold attachment
- Frank Humphries (JLAB)
- John Fischer (JLAB)
- Gianluigi Ciovati (JLab)
1:50 PM - 2:00 PM
Room: TL1227
2:00 PM Gas load desorbed from room temperature warming up of cryomodules and rationale for next generation beamline vacuum system - Rong-Li Geng (Thomas Jefferson National Accelerator Facility)
Gas load desorbed from room temperature warming up of cryomodules and rationale for next generation beamline vacuum system
- Rong-Li Geng (Thomas Jefferson National Accelerator Facility)
2:00 PM - 2:05 PM
Room: TL1227
2:05 PM NEG pump for C50-12 and initial experience - Marcy Stutzman (Jefferson Lab) Kurt Macha (JLAB)
NEG pump for C50-12 and initial experience
- Marcy Stutzman (Jefferson Lab)
- Kurt Macha (JLAB)
2:05 PM - 2:15 PM
Room: TL1227
2:15 PM Off-line evaluation of NEG pump by integrated vertical testing a single-cell cavity - Gianluigi Ciovati (JLab)
Off-line evaluation of NEG pump by integrated vertical testing a single-cell cavity
- Gianluigi Ciovati (JLab)
2:15 PM - 2:25 PM
Room: TL1227
2:25 PM Hi-potting halted or not? Evidence of benefit? - Arne Freyberger (JLAB-Accelerator Division-Operations Department)
Hi-potting halted or not? Evidence of benefit?
- Arne Freyberger (JLAB-Accelerator Division-Operations Department)
2:25 PM - 2:30 PM
Room: TL1227
2:30 PM Design and implementation of a new clean room environment for tunnel work and first use for NL12 warm girders and next steps for improvements - John Heckman (JSA)
Design and implementation of a new clean room environment for tunnel work and first use for NL12 warm girders and next steps for improvements
- John Heckman (JSA)
2:30 PM - 2:50 PM
Room: TL1227
2:50 PM First experience of “particulate free” warm girder NL12 & NL13 assembly with real-time particulate monitoring and identified improvements for next round of practice - Danny Forehand (JLAB) Greg Marble (JLAB) Chris Dreyfuss (JLAB)
First experience of “particulate free” warm girder NL12 & NL13 assembly with real-time particulate monitoring and identified improvements for next round of practice
- Danny Forehand (JLAB)
- Greg Marble (JLAB)
- Chris Dreyfuss (JLAB)
2:50 PM - 3:00 PM
Room: TL1227
3:00 PM Design and first use of the slow venting apparatus for NL12 warm girders and future improvements - Ari Palczewski (Jefferson Lab) Danny Forehand (JLAB)
Design and first use of the slow venting apparatus for NL12 warm girders and future improvements
- Ari Palczewski (Jefferson Lab)
- Danny Forehand (JLAB)
3:00 PM - 3:05 PM
Room: TL1227
3:05 PM Particulates collected and analyzed from UHV surfaces of NL12 and NL13 warm girder components - Joshua Spradlin (Jefferson Lab) Anne-Marie Valente-Feliciano (Jefferson Lab) Charles Reece (JLab)
Particulates collected and analyzed from UHV surfaces of NL12 and NL13 warm girder components
- Joshua Spradlin (Jefferson Lab)
- Anne-Marie Valente-Feliciano (Jefferson Lab)
- Charles Reece (JLab)
3:05 PM - 3:25 PM
Room: TL1227
3:25 PM Post-mortem investigation of leaky gate valves (warm gate valves and cold valves): condition of Viton O-ring in terms of particulate shedding and nature of failure - Greg Marble (JLAB) Rong-Li Geng (Thomas Jefferson National Accelerator Facility)
Post-mortem investigation of leaky gate valves (warm gate valves and cold valves): condition of Viton O-ring in terms of particulate shedding and nature of failure
- Greg Marble (JLAB)
- Rong-Li Geng (Thomas Jefferson National Accelerator Facility)
3:25 PM - 3:30 PM
Room: TL1227