Name: TTC 2019, TESLA Technology Collaboration
Start: 2019-02-05T08:00:00-08:00
End: 2019-02-08T18:00:00-08:00
Location: AMS Student Nest, UBC Campus

TTC 2019, TESLA Technology Collaboration

from Tuesday 5 February 2019 (08:00) to Friday 8 February 2019 (18:00)

Monday 4 February 2019
Tuesday 5 February 2019

08:00

08:00 - 09:00
Room: Room 2306 and 2309
09:00
09:00 - 10:30
Room: Room 2306 and 2309
Contributions

09:00 Welcome, Introduction, Logistics - Robert Laxdal (TRIUMF)

09:15 TTC Chairman's Report - Hans Weise (DESY)

09:30 TRIUMF overview and SRF activities - Zhongyuan Yao (TRIUMF)

10:00 FRIB Cavity Performance Statistics and Lessons Learned - John Popielarski (FRIB)
10:30 Coffee
Coffee
10:30 - 11:00
Room: Room 2306 and 2309
11:00 Cavity Performance experience - safe limits
Cavity Performance experience - safe limits
11:00 - 12:30
Room: Room 2306
Contributions

11:00 Long Term Operation of a Large Ensemble of SRF Cavities in CEBAF - Arne Freyberger (JLab)

11:20 Overview of 12 year operation of the SCL at SNS - John Mammosser (SNS) Sang-Ho Kim (ORNL)

11:40 Summary of the maximum SCRF voltage in XFEL - Nick Walker (DESY)

12:00 Operation and performance limits of the LHC cryomodule - Katarzyna Turaj (CERN)

12:15 Discussion - Julien Branlard (DESY) Rong-Li Geng (Jefferson Lab)
Cold test diagnostics and novel processing
Cold test diagnostics and novel processing
11:00 - 12:30
Room: Room 2309
Contributions

11:00 Introduction WG2 - Martina Martinello (FNAL)

11:10 Field emission study on cERL main linac cryomodule - Kensei Umemori (KEK)

11:30 Field emission studies for ESS prototipe cryomodules and vertical test diagnostic - Enrico Cenni (CEA Saclay) stephane Berry (CEA Saclay)

11:50 Plans for beam-loss and field-emission detection in LCLS-2 - Alan Fisher (SLAC)

12:10 Overview on coupler protection - Tom Powers (JLAB)

12:20 SRF CAVITY R&D at SHINE
12:30 Lunch
Lunch
12:30 - 14:00
14:00 Cavity performance experience - safe limits - Field emission and multi-pacting: experience and mitigation-
Cavity performance experience - safe limits - Field emission and multi-pacting: experience and mitigation-
14:00 - 15:30
Room: Room 2306
Contributions

14:00 Long term experience at INFN Legnaro - Giovanni Bisoffi (INFN-LNL)

14:18 Experience with LCLS-II Cavity and Cryomodule Tests at Fermilab - Elvin Harms (Fermilab)

14:36 Field Emission and Mitigation in the CEBAF Linacs - Robert Legg (JLAB) Rongli Geng (JLab)

14:54 Exceptional events during operation of the European XFEL - Mathieu Omet (DESY)

15:12 Operational Experience of Cavity/CMs in ISAC-II QWR Linac - Zhongyuan Yao (TRIUMF)
Cold test diagnostics and processing
Cold test diagnostics and processing
14:00 - 15:30
Room: Room 2309
Contributions

14:00 Robotic High Pressure Rinsing of Complex Geometry SRF Cavities - Joe Whaley (FRIB)

14:18 The use of robotics in cavity preparation and assembly procedures - Stephane Berry (CEA Saclay)

14:36 Plasma cleaning development for LCLS-II cavities - Bianca Giaccone (FNAL)

14:54 T-mapping, B-measurements and vertical diagnostics at Cornell - Ryan Porter (Cornell)

15:12 INFN-LASA experience on vertical cold test diagnostics - Carlo Pagani (INFN Milano - LASA)
15:30 coffee
coffee
15:30 - 16:00
Room: Room 2306 and 2309
16:00 Voltage and phase stability
Voltage and phase stability
16:00 - 17:30
Room: Room 2306
Contributions

16:00 Long Term Experience with SRF Linac at ELBE - Peter Michel (ELBE)

16:18 LLRF system performance limiting factors during CW operation of high Ql cavities cryomodule - Wojciech Cichalewski (LUT-DMCS)

16:36 LLRF compensation and mitigation of two cavity instability - Ramona Leewe (TRIUMF)

16:54 CEBAF C100 Fault Classification Based on Time Domain RF Signals - Tom Powers (JLab)

17:12 Discussion - Julien Branlard (DESY) Rong-Li Geng (Jefferson Lab)
Cold test diagnostics and novel processing
Cold test diagnostics and novel processing
16:00 - 17:30
Room: Room 2309
Contributions

16:00 Combined magnetometric and thermometric characterisation of a TESLA type cavity cooled down in an external magnetic field - Oliver Kugeler (HZB)

16:18 Transition Edge Sensors for Thermal Mapping as a diagnostics tool on bulk Niobium SRF Cavities - Giovanna Vandoni (CERN)

16:36 Magnetic field sensors and measuraments in cryomodules - Genfa Wu (FNAL) Sam Posen (Fermilab)

16:54 Three Axis Helmholtz coil Configuration for Flux Trapping Studies at TRIUMF - Andrew Cote (UBC)

17:12 Magnetic Field Diagnostics at the DESY Vertical Teststands - Marc Wenskat (DESY)
18:00

18:00 - 19:30
Room: Room 2301
Wednesday 6 February 2019
08:55
08:55 - 10:30
Room: Room 2306 and 2309
Contributions

09:00 Summary of Recent Progress in High Q and High Gradient Research - Anna Grassellino (FNAL)

09:30 LCLS-II – the Issues and Path Forward - Andrew Burrill (LCLS-II)

10:00 First Crabbing of a Proton Beam - Rama Calaga (CERN)
10:30 Coffee
Coffee
10:30 - 11:00
Room: Room 2306 and 2309
11:00 2K vs 4K operation, He induced microphonics
2K vs 4K operation, He induced microphonics
11:00 - 12:30
Room: Room 2306
Contributions

11:00 The 8T solenoid and the local magnetic shielding in the FRIB cryomodules - Kenji Saito (FRIB)

11:18 Comparison of 4K/2K operation performance in CEBAF injector cryomodules - Grigory Eremeev (JLab)

11:36 Experience with the CeC PoP 4K 1/4 Wave Photocathode Gun and 2K 5-Cell Cavity at RHIC - Kevin Smith (BNL)

11:54 Experience with cryogenics induced microphonics in LCLS-II cryomodules - Tom Peterson (SLAC)

12:12 Commissioning of 704MHz SRF booster cavity for LEReC - Wencan Xu (BNL)
Cold test diagnostics and novel processing
Cold test diagnostics and novel processing
11:00 - 12:30
Room: Room 2309
Contributions

11:00 HF-free bipolar EP - progress unraveling the mechanism and optimizing for multi-cell cavities - Charles Reece (JLAB) Hui Tian (JLAB)

11:18 Cavity etching via rf Ar/Cl plasma - Jeremy Peshl (ODU)

11:36 Green processing of cavities via vibro-tumbling - Cristian Pira (INFN-LNL)

11:54 Vertical EP and green EP progress at Cornell - James Maniscalco (Cornell)

12:12 EP Developments at TRIUMF - James Keir (TRIUMF)
12:30 Lunch
Lunch
12:30 - 14:00
14:00 High Q and high gradient - progress on Infusion
High Q and high gradient - progress on Infusion
14:00 - 15:30
Room: Room 2306
Contributions

14:00 Results of N-infusion at KEK new furnace - Kensei Umemori (KEK)

14:18 Cryo-AFM R&D - Zhuawn Sung (FNAL)

14:36 Infusion R&D at DESY - Marc Wenskat (DESY)

14:54 JLab work on low(er) temperature near-surface diffusion post 800C(or higher) anneal of Nb - aka "infusion” - Pashupati Dhakal (JLab)

15:12 Infusion R&D at Cornell - James Maniscalco (Cornell)
Transportation
Transportation
14:00 - 15:30
Room: Room 2309
Contributions

14:00 Lessons learned from LCLS-II shipments - Joshua KALUZNY (FNAL) Tom Peterson (SLAC)

14:20 Lessons learned from LHC and other magnet shipments - Tom Nicol (FNAL)

14:35 Adaptation of cryomodule shakers, truck trailer shakers, etc. - Tom Nicol (FNAL)

14:45 Transportation of cryomodule from Vancouver to Kolkata - Norman Muller (TRIUMF)

15:00 Cryomodule instrumentation and diagnostics for transport - Jeremiah Holzbauer (FNAL)
15:30 Coffee
Coffee
15:30 - 16:00
Room: Room 2306 and 2309
16:00 High Q and high gradient - progress on Doping
High Q and high gradient - progress on Doping
16:00 - 17:30
Room: Room 2306
Contributions

16:00 The LCLS-II HE High Q and Gradient R&D Program - Dan Gonnella (SLAC)

16:18 Quench studies in single and multicell N-doped cavities - Daniel Bafia (FNAL)

16:36 LCLS-II Doping / High Q/Gradient - Jlab - Ari Palczewski (JLab)

16:54 Thermal diffusivity measurements on niobium - Ganapati Myneni (JLab)

17:12 N doping results on 650 MHz cavities - Martina Martinello (FNAL)
Cryomodule types
Cryomodule types
16:00 - 17:30
Room: Room 2309
Contributions

16:00 Comparison between warm strongback, spaceframe, DESY-style, etc. - Kay Jensch (DESY) Stephane Berry (CEA Saclay) Tom Nicol (FNAL)

16:40 Crab cavity cryostat design, cavity support, and alignment - Alan Wheelhouse (STFC) Peter McIntosh (STFC)

17:00 Top loading vs. "Butter dish" design for quarter and half-wave cavity cryostats - Kenji Saito (FRIB) Sam Miller (FRIB)
18:00

18:00 - 19:30
Room: Room 2301
Thursday 7 February 2019
09:00 High Q and high gradient - Progress on Low-T Bake
High Q and high gradient - Progress on Low-T Bake
09:00 - 10:30
Room: Room 2306
Contributions

09:00 Discussion of Questionnaire - Marc Wenskat (DESY)

09:18 Low T baking studies for KEK cavities - Kensei Umemori (KEK)

09:36 Low T Bake - cool down studies - Daniel Bafia (FNAL)

09:54 Baking R&D at DESY - Lea Steder (DESY)

10:12 Low T Bake Cornell - James Maniscalco (Cornell)
Cryomodule design, assembly, and operation
Cryomodule design, assembly, and operation
09:00 - 10:30
Room: Room 2309
Contributions

09:00 SNS and LCLS-II at Jefferson Lab - Naeem Huque (JLAB)

09:20 SRF cavity and cryomodule conceptual designs for eRHIC - Douglas Holmes (BNL)

09:40 Design, assembly, transportation of the cryomodule for SRILAC, heavi-ion, CW - Naruhiko Sakamoto (RIKEN Nishina Center)

10:00 Conceptual Cryomodule Design for the CW HElmholtz LInear Accelerator at GSI - Florian Dziuba (GSI)

10:10 Support post failure in CM2 (ILC-style cryomodule) at Fermilab - Tom Nicol (FNAL)
10:30 Coffee
Coffee
10:30 - 11:00
Room: Room 2306 and 2309
11:00 High Q and high gradient - other topics
High Q and high gradient - other topics
11:00 - 12:30
Room: Room 2306
Contributions

11:00 Low β Cavity Performance Improvement Studies using Multimode Resonators - Philipp Kolb (TRIUMF)

11:18 Frequency dependence studies of Nb3Sn cavities - Sam Posen (FNAL)

11:36 Update on Nb3Sn R&D at Cornell - Ryan Porter (Cornell)

11:54 Nb/Cu by energetic condensation and SIS multilayers - Anne-Marie Valente-Feliciano (JLAB)

12:12 Discussion - Marc Wenskat (DESY)
Cryomodule design, assembly and operation
Cryomodule design, assembly and operation
11:00 - 12:30
Room: Room 2309
Contributions

11:00 Flow-induced microphonics - Josh Kaluzny (FNAL) Tom Peterson (SLAC)

11:20 Microphonics measurements on ARIEL e-LINAC cryomodule - Yanyun Ma (TRIUMF)

11:35 Design differences for CW and pulsed operation - Elvin Harms (FNAL) Tom Peterson (SLAC)

11:55 Design issues of main cryomodule for cERL, CW operation - Kensei Umemori (KEK)

12:15 Component shipping tests - John Mammosser (SNS)
12:30 Lunch
Lunch
12:30 - 14:00
14:00
14:00 - 15:30
Room: Room 2306 and 2309
Contributions

14:00 Report from the Second Topical Workshop on Microphonics, LLRF Workshop Series, Brooklyn, NY, October 25-26, 2018 - Curt Hovater (JLAB) Kevin Smith (BNL)

14:30 Report from the 8th International Workshop on Thin Films and New Ideas for Pushing the Limits of RF Superconductivity, INFN/Legnaro, October 8-10, 2018 - Anne-Marie Valente-Feliciano (JLAB)

15:00 Report from the TTC/ARIES topical workshop on flux trapping and magnetic shielding, CERN, November 8-9, 2018 - Walter Venturini-Delsolaro (CERN)
15:30 Coffee
Coffee
15:30 - 16:00
Room: Room 2306 and 2309
16:00 How to safely transport cryomodules around the world
How to safely transport cryomodules around the world
16:00 - 17:30
Room: Room 2306 and 2309
Contributions

16:00 Slides for discussion - Tom Peterson (SLAC)
18:00

18:00 - 20:30
Friday 8 February 2019
09:00
09:00 - 10:30
Room: Room 2306 and 2309
Contributions

09:00 muSR and beta-NMR - probing the superconducting state - Rob Kiefl (UBC/TRIUMF)

09:45 First Science from XFEL - Anton Barty (CFEL)
10:30 Coffee
Coffee
10:30 - 11:00
Room: Room 2306 and 2309
11:00
11:00 - 12:40
Room: Room 2306 and 2309
Contributions

11:00 WG1 Report - Julien Branlard (DESY) Rong-Li Geng (Jefferson Lab)

11:15 WG2 Report - Martina Martinello (FNAL) Oliver Kugeler (Helmholtz Zentrum Berlin)

11:30 WG3 Report - Kensei Umemori (KEK) Marc Wenskat (DESY)

11:45 WG4 Report - Naruhiko Sakamoto (RIKEN Nishina Center) Stephane Berry (CEA Saclay) Thomas Nicol (Fermilab)

12:00 Technical Board Report - Eiji Kako (KEK)

12:15 Chairman's Report - Hans Weise (DESY)

12:30 Closing Remarks - Robert Laxdal (TRIUMF)
12:40 Lunch
Lunch
12:40 - 14:30

14:30

14:30 - 16:30

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