Name: TESLA Technology Collaboration (TTC) Meeting
Start: 2018-02-06T08:30:00+01:00
End: 2018-02-09T18:30:00+01:00
Location: Physics Department

TESLA Technology Collaboration (TTC) Meeting

from Tuesday 6 February 2018 (08:30) to Friday 9 February 2018 (18:30)

Monday 5 February 2018
Tuesday 6 February 2018

08:30 Registration
Registration
08:30 - 09:00
Room: Foyer
09:00
09:00 - 09:15
Room: Aula A
Contributions

09:00 INFN-Milan, welcome and logistics - Carlo Pagani (MI)
09:15 Welcome and introduction, status and progress reports
Welcome and introduction, status and progress reports
09:15 - 10:30
Room: Aula A
Contributions

09:15 Introduction and update from last collaboration meeting - Hasan Padamsee (Cornell)

09:30 LCLS-II progress with cavity and CM production and testing - Marc Ross (SLAC)

10:00 Recent progress in SRF cavity components and module tests at FRIB - Kenji Saito (FRIB)
10:30 Coffee Break
Coffee Break
10:30 - 11:00
Room: Foyer
11:00
11:00 - 12:00
Room: Aula A
Contributions

11:00 CW accelerating module test progress at DESY - Denis Kostin (DESY)

11:15 15 years of CW SRF operation at ELBE - Andre Arnold (HZDR ELBE)

11:30 3.9 GHz CW challenges and recent horizontal test results for 3.9 GHz Cavity - Sebastian Aderhold (FNAL)

11:45 Large Grain Cavities in a CEBAF Cryomodule - Gianluigi Ciovati (JLAB)
11:00 - 12:30
Room: Aula C
Contributions

11:00 LLRF commissioning of 25MeV Proton SC Linac and design for 500MeV CW Linac - Zheng Gao (IMP)

11:22 SNS LLRF/Operation Experience - Mark Crofford (SNS)

11:44 CEBAF LLRF and C100 Experience - Curt Hovater (JLAB)

12:06 LLRF of the European XFEL - M. Omet (Deutsches Elektronen-Synchrotron)

12:28 Discussion
12:00
12:00 - 12:30
Room: Aula A
Contributions

12:00 Experiment of Active Coil Cancellation on a LCLS-II cryomodule - S. Chandrasekaran (FNAL)

12:18 Flux expulsion experiments at KEK - Kensei Umemori (KEK)
12:30 Lunch
Lunch
12:30 - 14:00
14:00
14:00 - 15:30
Room: Aula A
Contributions

14:00 Fundamental Studies of Flux Trapping - Sam Posen (FNAL)

14:20 Achieving High Q in LCLS-II Cavity Production - Dan Gonella (SLAC)

14:30 Trapped Flux Studies in Horizontal Tests - Julia-marie Koeszegi (HZB)

14:45 Flux Expulsion of LCLS-II Cryomodules - Genfa Wu (FNAL)

15:00 Trapped Flux Studies on Low Beta Cavities at IPNO - David Longuevergne (IPN Orsay)

15:15 Discussion
14:00 - 15:30
Room: Aula C
Contributions

14:00 Microphonics - A. Neumann (HZB)

14:22 Microphonics Experience at cERL - Hiroshi sakai (KEK)

14:45 He Pressure effects in CW cryomodules - Ed Daly (JLAB)

15:07 Impact of Thermo-acoustics oscillations on the LCLS II CM microphonics - Yuriy Pischalnikov (FNAL)
15:30 Coffee Break
Coffee Break
15:30 - 16:00
Room: Foyer
16:00
16:00 - 17:30
Room: Aula A
Contributions

16:00 Cavity Performance Limitations in FRIB Cryomodules - Kenji Saito (FRIB)

16:15 Preparation, processing, assembling and testing of spoke resonators: from SSR1 jacketed cavities to string assembly - Mattia Parise (FNAL)

16:30 Fabrication and VT results in RIKEN-QWR Cavity - Naruhiko Sakamoto (RIKEN)

16:45 Analysis of HIE ISOLDE cavity results - Akira Miyazaki (CERN)

17:00 Nb/Cu cavity development at IMP for the stable operation of high current CW beam - Teng Tan (IMP)

17:15 Discussion
16:00 - 17:30
Room: Aula C
Contributions

16:00 Resonance Control at FNAL - Yuriy Pischalnikov (FNAL)

16:30 Microphonics measurement and compensation in SRF cavities - Radoslaw Rybaniec (DESY)

17:00 Passive Microphonics Control - Tom Powers (JLAB)
18:00

18:00 - 19:30
Room: Sala Consiglio
Wednesday 7 February 2018
09:00
09:00 - 10:30
Room: Aula A
Contributions

09:00 Thin film research: CERN experience and possible future applications - Walter Venturini Delsolaro (CERN)

09:30 ESS prototype testing and test-stands progress - Roger Ruber (Uppsala University)

10:00 SRF technology in China; Infrastructure and industrialization for various projects - Dong Wang (SINAP)
10:30 Coffee Break
Coffee Break
10:30 - 11:00
Room: Foyer
11:00
11:00 - 11:45
Room: Aula A
Contributions

11:00 Field Emission Comparison between CW and Pulsed Cryomodules - Olivier Napoly (CEA)

11:15 Current Understanding of Field Emission in CEBAF Linac - Rongli Geng (JLAB)

11:30 Field Emission Results for LCLS-II Production (VT to CM) - Dan Gonella (SLAC)
11:00 - 12:30
Room: Aula C
Contributions

11:00 Microphonic Noise and Mechanical Resonances at CMTF and the European XFEL - Andrea Bellandi (DESY)

11:18 Individual and vector sum CW operation of X-FEL module in high Ql (6e7) conditions - Wojciech Cichalewski (DMCS)

11:36 CEBAF Gradient Team - Clyde Mounts (JLAB)

11:54 The challenge of operating a superconducting cavity at 5 Hz bandwidth - Daniel Valuch (CERN)

12:12 Early Results of the LCLS-II LLRF System - Alessandro Ratti
11:45
11:45 - 12:30
Room: Aula A
Contributions

11:45 SRF system for a new 6 GeV synchrotron light source in Beijing - Pei Zhang (IHEP)

12:00 Higher Harmonic Cavity for Bessy Upgrade - Andranik Tsakanian (HZB)

12:15 Developing 3.9 GHz cavities for CW SCLF - Jinfang Chen (SINAP)
12:30 Lunch
Lunch
12:30 - 14:00
14:00
14:00 - 15:30
Room: Aula A
Contributions

14:00 SRF from INFN/Milano - Carlo Pagani (INFN-UNIMI)

14:30 New non-accelerator applications of SRF technology - Alexander Romanenko (FNAL)

15:00 Summary report on the SRF in a dirty machine workshop - Emmy Sharples (HZB)
15:30 Coffee Break
Coffee Break
15:30 - 16:00
Room: Foyer
16:00
16:00 - 17:40
Room: Aula A
Contributions

16:00 Plasma ignition in LCLS-II cavities - Martina Martinello (FNAL)

16:10 Multipacting and conditioning cases for EU-XFEL - Denis Kostin (DESY)

16:20 Performance recovery on CEBAF - Mike Drury (JLAB)

16:30 Performance recovery by using horizontal HPR - Eiji Kako (KEK) Michiru Nishiwaki (KEK)

16:40 Strategy for operation and recovery of performance at SNS - John Mammosser (SNS)

16:50 Discussion
18:00

18:00 - 19:30
Room: Aula D
Thursday 8 February 2018
09:00
09:00 - 10:30
Room: Aula A
Contributions

09:00 European-XFEL SC accelelator commissioning and operation - Julien Branlard

09:30 Report from TTC topical workshop on "pushing cavity performance limits" - SERGEY BELOMESTNYKH (FNAL)

10:00 Frequency dependence of surface resistance and non-equilibrium superconductivity - MARTINA MARTINELLO (FNAL)
10:30 Coffee Break
Coffee Break
10:30 - 11:00
Room: Foyer
11:00
11:00 - 12:30
Room: Aula D
Contributions

11:00 Coupler operation and R&D activities at IMP - Tiancai Jiang (IMP)

11:15 High Power Main couplers for CW/RF operation - Sergey Kazakov (FNAL)

11:30 Main coupler R&D at DESY - Denis Kostin (DESY)

11:45 LCLS II cavity HOM coupler tuning and measurements during cold test - Timergali Khabiboulline (FNAL)

12:00 Discussion
11:00 - 12:30
Room: Aula A
Contributions

11:00 Recent results of cavity infusion at DESY - Christopher Bate (University of Hamburg)

11:15 N-infusion at KEK / J-PARC - Kensei Umemori (KEK)

11:30 Progress in N-infusion at FNAL - Mattia Checchin (FNAL)

11:45 Sample study for N-infusion - Guiherme Semione (DESY)

12:00 Latest material analysis on state of the art treatments (including doping and infusion cutouts) - Zuwhan Sung (FNAL)

12:15 Discussion
12:30 Lunch
Lunch
12:30 - 14:00
14:00
14:00 - 15:30
Room: Aula D
Contributions

14:00 Lessons learned from ADS spoke cavity tuners and helium vessels - Mi Zhenghui (IHEP)

14:15 Development of Tuners for LCLS-II (1.3 GHz, 3.9 GHz) and PIP II (all cavities) - Yuriy Pischalnikov (FNAL)

14:45 MYRRHA SC linac spoke cavity system - Nicolas Gandolfo (IPNO)

15:00 C-ADS tuner systems - Tiancai Jiang (IMP)

15:15 Discussion
14:00 - 15:30
Room: Aula A
Contributions

14:00 Nb3Sn from Cornell - Ryan Porter (Cornell University)

14:18 Limiting defects on Nb3Sn coating cavity at FNAL - Jae-Yel Lee (Northwestern University)

14:36 RF critical field of Nb3Sn and N-doped niobium - Sebastian Keckert (HZB)

14:54 Higher gradients by utilizing non-equilibrium superconductivity - Alex Romanenko (FNAL)

15:12 Discussion
15:30 Coffee Break
Coffee Break
15:30 - 16:00
Room: Foyer
16:00
16:00 - 17:30
Room: Aula D
Contributions

16:00 Spoke cavity cryomodule for C-ADS - Rui Ge (IHEP)

16:15 Cryomodule for RIKEN QWR - Kazutaka Ozeki (RIKEN)

16:30 IFMIF HWR cryomodule and magnetic shield properties - Juliette Plouin (CEA)

16:45 Troubleshooting and stability analysis of CW RF operation at China ADS front-end demo linac - Yuan He (IMP)

17:00 JLAB CMTF Fast Cooldown - Naeem Huque

17:10 Discussion
16:00 - 17:30
Room: Aula C
Contributions

16:00 High power coupler - Yasuchika Yamamoto (KEK)

16:15 Challenges with PIP-II cryomodule - Allan Rowe (FNAL)

16:30 Experience with commissioning of high-Gradient cryomodule for Euro-XFEL - Mathieu Omet (DESY)

16:45 LFD compensation for high-gradient cryomodule - Yuriy Pishalnikov (FNAL)

17:00 FNAL CM2 with beam - new record - Daniel Broemmelsiek (FNAL)

17:15 Discussion on optimum condition for larger beam current operation - John Mammosser (SNS)
18:00

18:00 - 19:30
Room: Aula C & D

20:00

20:00 - 23:00
Friday 9 February 2018
09:00
09:00 - 10:30
Room: Aula A
Contributions

09:00 New energy production pontentialities with SRF Accelerator Driven Systems - Wenlong Zhan (CAS)

09:45 New physics potentialities with SRF based XFELs - Jochen Schneider (DESY)
10:30 Break
Break
10:30 - 10:45
Room: Foyer
10:45
10:45 - 12:45
Room: Aula A
Contributions

10:45 Summary Talk-1: WG-1 conveners

11:00 Summary Talk-2: WG-2 conveners

11:15 Summary Talk-3: WG-3 conveners

11:30 Summary Talk-4: WG-4 conveners

11:45 TB Report - Eiji Kako (KEK)

11:55 CB Report - Hasan Padamsee (Cornell)

12:15 Closing remarks - Carlo Pagani (MI)
12:45 Lunch Break
Lunch Break
12:45 - 14:00
Room: Foyer

14:00

14:00 - 18:00

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