Name: TTC Meeting at DESY, March 24 - 27, 2014
Start: 2014-03-24T08:00:00+01:00
End: 2014-03-27T13:00:00+01:00
Location: DESY Hamburg

TTC Meeting at DESY, March 24 - 27, 2014

from Monday, March 24, 2014 (8:00 AM) to Thursday, March 27, 2014 (1:00 PM)

Monday, March 24, 2014

8:30 AM

8:30 AM - 9:00 AM
Room: Auditorium Bldg. 5
9:00 AM
9:00 AM - 1:00 PM
Room: Auditorium Bldg. 5
Contributions

9:00 AM Introduction and update since last collaboration meeting - Olivier Napoly (CEA-Saclay)

9:20 AM DESY Welcome & logistics - Hans Weise (DESY)

9:30 AM CEBAF Upgrade Experience - Drury Mike (JLAB)

10:00 AM First Beam Recirculation and Energy Recovery in Compact-ERL at KEK - Shogo Sakanaka (KEK)

11:00 AM ESS SRF - Christine Darve (ESS)

11:30 AM European XFEL Accelerator Module Assembly - Stéphane BERRY (CEA-Saclay)

12:00 PM FLASH Operational Experience - Siegfried Schreiber (DESY)
1:00 PM lunch
lunch
1:00 PM - 2:00 PM
2:00 PM
2:00 PM - 5:00 PM
Room: Auditorium Blg. 5
Contributions

2:00 PM Niobium materials (FG/LG), impurities, etc. - Peter Kneisel (Jefferson Lab)

2:20 PM Optical inspection by OBACHT (DESY) and other inspection elsewhere from other laboratories - Aliaksandr Navitski (Deutsches Elektronen Synchrotron)

2:40 PM Cavity and module testing for XFEL at DESY - Jacek Swierblewski (MKS 1)

3:00 PM Observation that fast cooldown maintains high Q0 better than slow cooldown - Anna Grasselino (FNAL)

3:40 PM Difficulties in fabrication, preparation and comissioning of input couplers - Jiyuan Zhai (IHEP)

4:00 PM Split quadrupole magnet design for ILC/KEK-STF - Vladimir Kashikhin (FNAL)

4:20 PM Limits for peak fields and gradient in low-beta cavities for high intensity projects - Yuan He (Institute of Modern Physics, CAS)

4:40 PM Recent development in spoke resonators - Guillaume Olry
Tuesday, March 25, 2014
8:30 AM
8:30 AM - 12:30 PM
Room: Bldg 1b - 4a/b (100 seats)
Contributions

8:30 AM KEK experiences in SCRF cavity fabrication, with focusing on the EBW work parameterization and optimization - Kensei Umemori (KEK)

8:50 AM What he companies considered as “hard to achieve” of our specs and request: provocative discussion - Giorgio Corniani (Ettore Zanon s.p.a.) Michael Pekeler (RI Research Instruments GmbH)

9:20 AM Successful development of new fabrication technique using based on laser welding, for SCRF cavities - Results and path ahead. - Prashant khare (Raja Ramanna Centre for Advanced Technology)

9:40 AM Typical problems with EBW welding observed with OBACHT - Aliaksandr Navitski (Deutsches Elektronen Synchrotron)

9:55 AM PED approach for 3.9 GHz XFEL cavities. - Massimiliano Moretti (INFN Milan - LASA)

10:50 AM Statistics on EP treatment of EXFEL cavities in series production - Michela Rizzi (Ettore Zanon SpA)

11:10 AM XFEL Series Cavity fabrication – Documentation issues - Jens Iversen (DESY - Deutsches Elektronen Synchrotron)

11:30 AM RF Aspects of Quality Control for the European-XFEL Cavities - Alexey Sulimov (DESY)

11:50 AM Studies of frequency variation with EP treatments performed by EZ - Ambra Gresele (E.Zanon)

12:10 PM Current status of Dubna-Minsk common activity on manufacturing of elliptical Nb cavity - Nikolay AZARYAN (JINR)
8:30 AM - 12:30 PM
Room: Bldg 3 - SR BAH1 (48 seats)
Contributions

8:30 AM Copper plating specifications, XFEL, LCLS-II, KEK, ERL Cornell, CERN - Wolf-Dietrich Möller (DESY)

8:45 AM Copper plating methods - Sergio Calatroni (CERN)

8:55 AM Thermal simulations, pulsed CW, XFEL, others - Denis Kostin (DESY)

9:05 AM Investigation methods, destructive and non-destructive - Alexey Ermakov (DESY)

9:15 AM Real defects, examples, classification at XFEL - Walid kaabi (LAL)

9:25 AM Experience with defects in copper plating at HTS (SLAC/CPI/FNAL ILC collaboration) - Kenneth Premo (Fermilab)

9:35 AM Method and experience of copper plating at Toshiba - Osamu Yushiro (Toshiba)

9:45 AM Copper plating issues at Cornell - Vadim Veshcherevich (Cornell Univrsity)

9:55 AM QC during mass production - Discussion - Wolf-Dietrich Möller (DESY)

10:40 AM XFEL coupler - Walid kaabi (LAL)

10:50 AM KEK-cERL, ML coupler - Hiroshi Sakai (KEK)

11:00 AM TTF3-SLAC/FNAL coupler - Kenneth Premo (Fermilab)

11:10 AM SPIRAL2 coupler - Yolanda GOMEZ MARTINEZ (LPSC / IN2P3)

11:20 AM What is the best preparation procedure? Discussion... - Eiji Kako (KEK)

11:30 AM Coupler design: TTF-3 coupler modification for LCLS-II CW - Nikolay Solyak (Fermilab)

12:00 PM CW coupler for BerlinPro/HZB - Vasim Khan (Helmholtz Zentrum Berlin)

12:10 PM CW coupler for Cornell ERL - Vadim Veshcherevich (Cornell Univrsity)

12:20 PM ESS coupler design - Stephen Molloy (ESS)
8:30 AM - 12:30 PM
Room: Bldg. 3 - BAH2 (26 seats)
Contributions

8:30 AM SNS High Intensity Experience - Sang-ho Kim (Oak Ridge National Laboratory)

8:45 AM ESS low beta elliptical - Stephen Molloy

9:00 AM IMP experience - Yuan He (Institute of Modern Physics, CAS)

9:15 AM Cryomodule Design - Yuqin Wan

9:30 AM HIE-Isolde - Alban Sublet (CERN)

9:45 AM Discussion

10:30 AM Discussion . spoke material: IPN - Guillaume Olry (IPN)

10:45 AM Discussion . spoke material: FNAL - Allan Rowe (Fermilab)

11:00 AM Discussion - multipacting simulation/experience: IPN - David Longuevergne (Institut de Physique Nucléaire d'Orsay)

11:15 AM Discussion - multipacting simulation/experience: FNAL - Dmitri Sergatskov (Fermilab) Timergali Khabiboulline (Fermilab)

11:30 AM Discussion - low frequency residual resistance: IPN - David Longuevergne (Institut de Physique Nucléaire d'Orsay)

11:45 AM Discussion - low frequency residual resistance: FNAL - Anna Grassellino (FNAL)
12:30 PM lunch break
lunch break
12:30 PM - 1:30 PM
1:30 PM
1:30 PM - 6:10 PM
Room: Bldg 1b - 4a (41 seats)
Contributions

1:30 PM Set of discussion guiding questions - Waldemar Singer (DESY)

1:35 PM Experiences to large scale production of Nb cavity material for CEBAF Upgrade and SNS - Charles Reece (Jefferson Lab)

1:45 PM Experiences to large scale production of Nb cavity material for European XFEL - Waldemar Singer (DESY)

2:00 PM Comparison LG-FG Nb properties - Peter Kneisel (Jefferson Lab)

2:10 PM LG vs FG (FNAL data, and DESY data analysis from Alex M) - Anna Grassellino (FNAL)

2:20 PM Foreign material inclusions in the Nb cavity material for European XFEL - Xenia Singer (DESY)

2:30 PM Analysis of surface damage layer in cavity Nb - Claire Antoine (CEA)

2:40 PM Discussion of material requirement specifications

3:00 PM Topographic contribution to non-linearly rf losses: FG BCP cf. EP - Charles Reece (Jefferson Lab)

3:05 PM Clean heat treatment studies for high Q0 – JLab - Ciovati (JLAB) Peter Kneisel (Jefferson Lab)

3:15 PM Macro and nanohydrides for different surface processing (data from Alex R and Yulia T) - Anna Grassellino (FNAL)

3:50 PM SIMS and muSR data for mfp nitrogen baked vs standard processing - Anna Grassellino (FNAL)

4:00 PM Material activities towards high Qo @ HZB - Oliver Kugeler (Helmholtz Zentrum Berlin)

4:05 PM Material activities towards high Qo with HT-N @ JLab - Charles Reece (Jefferson Lab)

4:15 PM Material activities towards high Qo @ DESY - Ricarda Laasch (DESY)

4:20 PM Material activities towards high Qo @ DESY - Jacek Sekutowicz (DESY)

4:25 PM Q change with quench in NbCu clad cavities - Waldemar Singer (DESY)

4:30 PM General Discussion of material influence on Q0

4:50 PM Transition to join WG8 17:00-18:00 for joint discussion of test condition influence on high Q0, e.g. ambient magnetic field and cooldown rate.

5:00 PM Joint Session with WG8
1:30 PM - 6:00 PM
Room: Bldg 1b - 4b (52 seats)
Contributions

1:30 PM • Modifications for CW operation for LCLS-II - Tom Peterson (FNAL) Yuriy Orlov (FNAL)

1:50 PM • French light Source Lunex - Massamba DIOP (Synchrotron SOLEIL)

2:10 PM • Experience commissioning CW daresbury CM - Alan Wheelhouse (ASTeC/STFC)

2:30 PM HZB experience with CW operation at the HoBiCaT test facility (A. Neumann - Helmhotz Berlin) - Axel Neumann (Scientist, SRF)

2:50 PM Cornell CW cryomodule, including module design for CW operation, operational experience, tuner experience … - Georg Hoffstaetter (Cornell University)

3:10 PM Discussion

4:00 PM Improvement of cavity Q0 by so called thermal cycling - Julia Vogt (HZB)

4:20 PM XFEL experience with mass production assembly at Saclay - Catherine MADEC (CEA-SAclay) Olivier Napoly (CEA-Saclay) Stéphane BERRY (CEA-Saclay)

4:40 PM FNAL experience assembling CM2 - Tug Arkan (Fermilab)

5:00 PM XFEL cryomodule transportation: an update since the Beijing TTC meeting - Kay Jensch (DESY) Olaf Sawlanski (DESY) Serena Barbanotti (DESY)

5:20 PM The certification of the XFEL cold linac for operation - Serena Barbanotti

5:40 PM Discussion
1:30 PM - 6:00 PM
Room: AMTF (50 seats)
Contributions

1:30 PM Radiation measurement and comparison between VT/CM tests

2:30 PM Components and methods of Cavity/CM tests

3:50 PM Discussion

4:45 PM Modification to test programs for high Q0 (partially joint with WG2)
6:00 PM
6:00 PM - 8:00 PM
Room: Building 1, Seminar Room 1
Contributions

6:00 PM Collaboration Board
Wednesday, March 26, 2014
8:30 AM
8:30 AM - 12:30 PM
Room: Bldg. 1b - 4a/b (100 seats)
Contributions

8:30 AM Introduction Industrialization of infrastructures for CAV preparation

8:35 AM Industrialization of Electro polishing - view and experiences from Institute sides DESY - Nicolai Steinhau-Kuehl (DESY)

8:45 AM Experience with installing an EP system at AES - Allan Rowe (Fermilab)

8:55 AM View and experience from industry (E.Zanon) - Michela Rizzi (Ettore Zanon SpA)

9:05 AM New EP systems and parameters: KEK - SHIGEKI KATO (KEK)

9:15 AM New EP systems and parameters: CEA - Fabien Eozenou (CEA)

9:25 AM New EP systems and parameters: FNAL Bi polar EP - Allan Rowe (Fermilab)

9:35 AM Infrastructure for industrial cavity production - Giorgio Corniani (Ettore Zanon s.p.a.)

9:47 AM JLAB equipment for retreatments and studies on infrastructures - Peter Kneisel (J lab)

9:54 AM CERN’s new 2K infrastructure - Karl-Martin SCHIRM (CERN)

10:01 AM XFEL Cavity Retreatment+ DESY infrastructure - Marco Schalwat (DESY Hamburg)

10:08 AM “ILC-HiGrade program at DESY: Some infrastructure for cavities repair and retreatment” - Aliaksandr Navitski (Deutsches Elektronen Synchrotron)

10:15 AM Vacuum issues usage of slow pumping slow venting - Dario Rizzetto (E.Zanon)

10:25 AM Discussion on application of EP for repair --global once or are local once possible to avoid changing cavity length

11:00 AM Prep steps and Quality control at JLAB - Peter Kneisel (J lab)

11:08 AM Discussion: Are there new/ Improved methods of preparation QC?

11:10 AM Results from XFEL cavity production and retreatments - Detlef Reschke (DESY)

11:20 AM Analysis of XFEL QC data in respect of success rate - Laura Monaco (INFN)

11:46 AM Discussion: Are we checking enough and are they the right parameters?

11:56 AM Discussion: Which additional parameters are under development and which one could be / should be checked in addition?

12:06 PM Discussions on New methods of cavity preparation techniques
8:30 AM - 12:30 PM
Room: Bldg. 55 (25 seats)
Contributions

8:35 AM Experience with the production of SC XFEL magnets - Fernando Toral (CIEMAT)

9:00 AM Results from the cold and warm tests of the XFEL SC Magnet - Michal Duda (IFJ PAN)

9:20 AM Current Leads for the XFEL SC Magnets - Heiner Brueck (DESY, MKS)

9:30 AM Assembly of SC splittable quadrupole with cavitiy string at KEK-STF2 - Akira Yamamoto (KEK)

9:50 AM Design for the splittable SC quadrupole magnets at LCLS-II (proposed) - Vladimir Kashikhin (Fermilab)

10:10 AM Discussion

10:45 AM Visit to the measurement hall and discussions

11:00 AM Introduction: Magnetic shielding session - Mika Masuzawa (KEK)

11:05 AM Fringe Fields near SRF cavities - Juliette Plouin (CEA-Saclay)

11:20 AM Effects of the ambient magnetic field on cavity performance

11:35 AM Effects of the magnetic field on cavity during operation - Dmitri Sergatskov (Fermilab)

11:50 AM Strategies for choosing the shielding material suited for large scale produciton - Kiyosumi Tsuchiya (KEK) Olivier Napoly (CEA-Saclay)

12:20 PM Summary for WG7 - Heiner Brueck (DESY, MKS) Mika Masuzawa (KEK)
8:30 AM - 10:30 AM
Room: AMTF (50 seats)
Contributions

8:30 AM Design, setup and commissioning of the AMTF - Bernd Petersen (DESY)

8:40 AM The 3.9 GHz vertical test stand at INFN Milan and the 3.9 GHz horizontal test stand at the AMTF - Daniele Sertore (INFN Milano - LASA)

8:50 AM Cavity Testing at J-Lab - Ari Palczewski (Jefferson National Laboratory)

9:00 AM Module Testing at J-Lab - Drury Michael (JLAB)

9:10 AM News from vertical and horizontal test infrastructure (HoBiCaT) and test program at HZB - Oliver Kugeler (Helmholtz Zentrum Berlin)

9:20 AM Test infrastructure and test programs for CM2 at FNAL - Camille Ginsburg (Fermilab) Timergali Khabiboulline (Fermilab)

9:30 AM Test infrastructure and test programs at KEK-STF - Yasuchika Yamamoto (KEK)

9:50 AM SRF test infrastructure and test programs at CERN - Mathieu Therasse (CERN)

10:00 AM SRF test infrastructure and test programs at Cornell - Georg Hoffstaetter (Cornell University)

10:10 AM Discussion
10:30 AM

10:30 AM - 11:00 AM
Room: AMTF (50 seats)
11:00 AM
11:00 AM - 12:30 PM
Room: AMTF (50 seats)
Contributions

11:00 AM Expected testing of the ESS SRF cavities - Christine Darve (European Spallation Source)

11:10 AM Experience at CEBAF and recovery by He processing (t.b.c)

11:20 AM Experience at FLASH - Siegfried Schreiber (DESY)

11:30 AM Beam operation experience at STF-Quantum beam project - Yasuchika Yamamoto (KEK)

11:40 AM Beam operation experience at cERL - Hiroshi Sakai (KEK)

11:50 AM Beam operation experience at Cornell ERL 2-cell injector - Georg Hoffstaetter (Cornell University)

12:00 PM KEK long term operation & experience - Kensei Umemori (KEK)

12:10 PM Discussion
12:30 PM lunch break
lunch break
12:30 PM - 1:30 PM
1:30 PM
1:30 PM - 2:30 PM
Room: Blg.1 / SR1
Contributions

1:30 PM Technical Board
2:30 PM
2:30 PM - 5:30 PM
Room: AMTF
Contributions

2:30 PM AMTF & XFEL Tours (please check detailed view)
2:30 PM - 5:30 PM
Room: Bldg 1b / 4a/b
Contributions

2:30 PM Summary & Report Writing
5:30 PM
5:30 PM - 6:30 PM
Room: AMTF
Contributions

5:30 PM XFEL Tour for conveners
7:00 PM Dinner
Dinner
7:00 PM - 10:00 PM
Room: DESY canteen annex
Thursday, March 27, 2014
9:00 AM
9:00 AM - 1:00 PM
Room: Auditorium
Contributions

9:00 AM WG1 Summary - Akira Yamamoto (KEK) Paolo Michelato (INFN - LASA)

9:15 AM WG6 Summary - Sergio Calatroni (CERN) Yuan He (Institute of Modern Physics, CAS)

9:30 AM WG3 Summary - Karl-Martin SCHIRM (CERN) axel matheisen (DESY)

9:45 AM WG4 Summary - Eiji Kako (KEK) Wolf-Dietrich Möller (DESY)

10:00 AM WG5 Summary - Catherine MADEC (CEA-SAclay) Tom Peterson (FNAL)

10:15 AM WG2 Summary - Charles Reece (Jefferson Lab) Waldemar Singer (DESY)

11:00 AM WG7 Summary - Heiner Brueck (DESY, MKS) Mika Masuzawa (KEK)

11:15 AM WG8 Summary - Camille Ginsburg (Fermilab) Detlef Reschke (DESY) Elmar Vogel (DESY) Kensei Umemori (KEK)

11:30 AM TB Report - Eiji Kako (KEK)

11:45 AM LCLS-II Overview - SRF related - Marc Ross (SLAC)

12:10 PM TTC High Q0 Working Group - Report - Charles Reece (Jefferson Lab)

12:30 PM CB Report - Olivier Napoly (CEA-Saclay)