TTC Meeting at KEK, December 2 - 5, 2014

2 Dec 2014, 07:30 → 5 Dec 2014, 12:30 Japan

No.4 Building 1F Seminar Hall (KEK Tsukuba)

Hitoshi Hayano (KEK)

The mission of the TESLA Technology Collaboration is to advance SRF technology R&D and related accelerator studies across the broad diversity of scientific applications, and to keep open and provide a bridge for communication and sharing of ideas, developments, and testing across associated projects. To this end the Collaboration supports and encourages free and open exchange of scientific and technical knowledge, expertise, engineering designs, and equipment. The TTC organizes regular collaboration meetings where new developments are reported, recent findings are discussed and technical issues are concluded. This time, TTC meeting is hosted by KEK on 2-5 December 2014. HAYANO, Hitoshi Chair of the Local Organizing Committee

Tuesday, 2 December

08:30 → 08:45 Registration

08:45 → 09:05 Introduction and update from the last Collaboration Meeting

Speaker: Dr Olivier Napoly (CEA-Saclay)

Slides Intro_Napoly.pptx

09:05 → 09:15 Welcome and Logistics

Speaker: Hitoshi Hayano (KEK)

Slides TTC14-at-KEK-info-v3.pdf

09:15 → 09:45 ILC Technical Key issues for realization

Speaker: Hitoshi Hayano (KEK)

Slides ILC-Key-Issue-Hayano-01.pptx

09:45 → 10:15 Challenge for mass-production of E-XFEL input couplers

Speaker: Dr Walid kaabi (LAL)

Slides Kaabi_TTC_Meeting_Dec_2014_KEK.pptx

10:15 → 10:25 Workshop Picture

slides TTC2014grp_6503L.jpg

10:25 → 10:45 Coffee break

10:45 → 11:15 Modified TTF3 coupler design and related R&D for LCLS-II

Speaker: Marc Ross (Fermilab)

Slides Adolphsen_Couplers_KEK_TTC_11_30_14.pptx

11:15 → 11:45 Technical Progress in ARIEL Electron Linac Comissioning

Speaker: Robert Laxdal (TRIUMF)

Slides ARIEL_talk-Laxdal.pptx

11:45 → 12:15 XFEL cavity production tests and comparison before/after module assembly

Speaker: Dr Detlef Reschke (DESY)

Slides CavityModuleResults_TTC_KEK_Dec2014_updated.pdf

12:15 → 12:30 Report from High-Q Working Group

Speaker: Charles Reece (Jefferson Lab)

Slides TTC_High_Q0_Working_Group_Dec2014.pptx

12:30 → 14:00 Lunch

14:00 → 17:00 WG 1 Module Tests and Procedures

14:00 Spiral2 cryomodule testing

Speaker: Dr Guillaume Devanz (CEA-Irfu)

Slides WG1_SPIRAL_GDZ_001.pdf

14:05 CM2 recent results

Speaker: Elvin Harms (Fermilab)

Slides Harms_CM2_Recent_Results.pptx

14:10 Argonne/ATLAS experience

Speaker: Elvin Harms (Fermilab)

14:15 Progress in a conduction-cooled superconducting quadrupole magnet

Speaker: Prof. Akira Yamamoto (KEK)

Slides TTC14-CM-SCQ-ay-141202.pptx

14:20 discussion/questions

Slides WG1_Discussion.pptx

14:30 XFEL module test infrastructure and procedure at DESY

Speaker: Mr Mateusz Wiencek (IFJ PAN)

Slides XFEL_module_test_infrastructure_and_procedures_at_DESY.pptx

14:35 JLAB cryomodule testing

Speaker: Mr Edward Daly (Jefferson Lab)

Slides TTC_KEK_Drury_R1.pptx

14:40 ARIEL commissioning

Speaker: Robert Laxdal (TRIUMF)

Slides CM_session-Laxdal2.pptx

14:45 discussion

Slides WG1_Discussion.pptx

15:30 E-XFEL module test results

Speaker: Mr Mateusz Wiencek (IFJ PAN)

Slides E-XFEL_module_test_results.pptx

15:35 E-XFEL Cavity Vertical vs. Module Test Statistics

Speaker: Dr Nicholas Walker (DESY)

Slides ttc-cm-vt-cmp.pptx

15:40 E-XFEL module HOM couplers experience

Speaker: Dr Alexey Sulimov (DESY)

Slides TTC_KEK_Sulimov.pdf

15:45 RF performance in STF2 cryomodule tests

Speaker: Eiji Kako (KEK)

Slides Kako,_RF_Performance_of_STF2_CM.pptx

15:50 Cryogenic performance in STF2 cryomodule tests

Speaker: Prof. Hirotaka NAKAI (KEK)

Slides TTC2014(Nakai).pdf

15:55 First attempt to correlate field emission in vertical cavity testing and cryomodule cavity testing by at-cavity-Xray-detection

Speaker: Dr Rong-Li Geng (Jefferson Lab)

Slides TTC2014KEK_at_cavity_X-Ray_detection_final.pptx

16:00 ESS Spoke Cryomodule testing preparation in Uppsala

Speaker: Dr Sebastien Bousson (IPN Orsay)

Slides Bousson-WG1-ESS_Spoke_cryomodule-testing.pptx

16:05 discussion

Slides WG1_Discussion.pptx

14:01 → 17:00 WG 3 High Qo

14:01 HTS results on thermoelectric contribution to surface resistance at HZB

Speaker: Julia Vogt (HZB)

14:20 Impact of cool-down procedure and residual field on high-Q0 at Cornell

Speaker: Mr Daniel Gonnella (Cornell University)

Slides wg3_cornell_cool_down_gonnella.pptx

14:40 Fermilab studies of quality factor changes of a N doped cavity from vertical to dressed horizontal test

Speaker: Julia Vogt (HZB)

Slides TTC_KEK_Fermilab_CoolingStudy.pdf

14:55 Efficient cooling with large thermogradients needed for full flux expulsion

Speaker: Dr Dmitri Sergatskov (Fermilab)

Slides das_ttc_tsukuba_2014.pdf

15:15 Results from cool-down experiments at DESY

Speaker: Dr Aliaksandr Navitski (Deutsches Elektronen Synchrotron)

Slides Navitski_TTC2014_Cryo-cycling_DESY_final.pptx

15:35 Open discussion on cool-down procedure

16:15 Update on N2-doping at FNAL

Speaker: Oleksandr Melnychuk (Fermilab)

Slides ttc2014_melnychuk.pdf

16:25 Update on N2-doping at JLAB

Speaker: Charles Reece (Jefferson Lab)

Slides JLab_N-doping_update.pptx

16:35 Update on N2-doping at Cornell

Speaker: Mr Daniel Gonnella (Cornell University)

Slides wg3_cornell_n_doping_update_gonnella.pptx

16:45 Open discussion on surface processing

18:00 → 19:30 Collaboration Board meeting 4B1F-R127 (Room 127)

Wednesday, 3 December

09:00 → 10:30 WG 1 Module Tests and Procedures

09:00 Cornell cryomodule testing experience

Speaker: Mr Daniel Gonnella (Cornell University)

Slides wg1_cornell_cavity_testing_expierience_gonnella.pptx

09:05 CW vs. pulsed module test at DESY

Speaker: Dr Jacek Sekutowicz (DESY)

Slides 2_-CW_vs_Pulse_mode-DESY.pptx

09:10 LCLS-II coupler test results

Speaker: Dr Andy Hocker (Fermilab)

Slides results_for_TTC2014.pptx

09:15 LCLS-II cryomodule testing plans

Speakers: Elvin Harms (Fermilab), Dr Nikolay Solyak (Fermilab)

Slides Harms_LCLS-II_Cryomodule_testing.pptx

09:20 discussion

Slides WG1_Discussion.pptx

10:00 Summary of WG1

09:01 → 10:30 WG 3 High Qo

09:01 N2 and Ti doping of ingot Nb cavities

Speaker: Dr Gianluigi Ciovati (Jefferson Lab)

Slides N2_and_Ti_doping_of_ingot_Nb_cavities.pptx

09:10 Field limit and nano-defects covering material surface

Speaker: Dr Takayuki Kubo (KEK)

Slides 141203_WG3_kubo.pdf

09:20 Open discussion on all WG3 topics (included cooldown influence on Nb/Cu Rs)

Included HIE-ISOLDE data on cooldown conditions influence on Rs of Nb/Cu structures

Slides HIE-ISOLDE_findings_on_Rs-deltaT.pptx

10:30 → 11:00 Coffee break

11:00 → 12:30 WG 2 Module Assembly (-post clean room)

11:00 Introduction

Speaker: Mr Kay Jensch (DESY)

Slides TTC_Meeting_KEK_–_WG2__program.pptx

11:10 Summary of ESS workshop in October "Requirements Conformance for SRF Cryomodule"

Speaker: Mr Wolfgang Hees (ESS)

Slides TTC_RQWorkshop_Molloy.pptx

11:30 Report on XFEL plans and experience on module→tunnel

Speaker: Mr Kay Jensch (DESY)

Slides 2014_12_03_XFEL_Module_interconnection_03.pptx

11:50 Introduction of open clean bench of class 1 for (beam line) assembly work

Speaker: Mr Shinya Maeda (Koken ltd.)

12:10 Report on CEBAF experience with magnetic materials in modules

Speaker: Dr Rong-Li Geng (Jefferson Lab)

Slides TTC2014KEK_C50_Q0.pptx

11:00 → 12:30 WG 4 Cavity Fabrication and Preparation

11:00 New data on pressure tested niobium materials

Speaker: Dr Gianluigi Ciovati (Jefferson Lab)

Slides New_data_on_pressure_tested_Nb_cavities.pptx

11:10 Niobium production

Speaker: Mr Rogerio Ribas (CBMM)

Slides CBMM_Presentation_TTC_2014.pdf

11:20 SRF ingot niobium technology past present and future prospects

Speaker: Dr Ganapati Myneni (ISOHIM)

Slides Myneni_TTC14.pptx

11:30 Characterization of control of foreign materials on post-machined niobium surface

Speaker: Dr Rong-Li Geng (Jefferson Lab)

Slides TTC2014KEK_weld_prep.pptx TTC2014KEK_weld_prep.pptx

11:40 Surface analysis of Nb cavity after CBP

Speaker: Dr Alena Prudnikava (Uni Hamburg, DESY)

Slides Surface_analysis_of_Nb_cavity_after_CBP_TTC2014.pptx

11:50 Lab EP study on inhomogeneous removal in vertical EP of Niobium cavity

Speaker: Dr SHIGEKI KATO (KEK)

Slides WG4_KATO_TTCM@KEK_2014_F.pdf

12:00 Study on vertical EP with Nb coupon cavity

Speaker: Dr Vijay Chouhan (Marui Galvanizing Co Ltd, Japan)

Slides TTC_meeting-2014.pdf

12:10 Discussion and Summary

12:30 → 14:00 Lunch

14:00 → 17:30 WG 2 Module Assembly (-post clean room)

14:00 Actively cooled magnetic shielding in the Spiral2 high beta cryomodules

Speaker: Dr Sebastien Bousson (IPN Orsay)

Slides Bousson_SP2_high_beta_magnetic_shielding.pptx

14:20 material properties measurement at cold

Speaker: Ms Juliette Plouin (CEA-Saclay)

Slides PLOUIN-TTC-2014.pptx

14:40 IHEP ILC test cryomodule assembly

Speaker: Dr Jiyuan Zhai (IHEP)

Slides IHEP_ILC_test_cryomodule_assembly.pptx

15:00 Plans for the assembly of the ESS prototype cryomodule: assembly steps, controls and tools

Speaker: Mr Nicolas BAZIN (CEA)

Slides TTC-NBazin_ESS.pptx

15:20 SFT2 cryomodule assembly at KEK

Speaker: Mr Takeshi Yanagisawa (Mitsubishi Heavy Industries, LTD.)

Slides TTC2014_STF2cryo.pptx

15:40 Updates from SNS concerning plans for Second Target Station project

Speaker: Dr Sang-ho Kim (Oak Ridge National Laboratory)

Slides sns_kim.pptx

16:00 LCLSII plans on "fast-cooling" and controlled thermal gradients to prevent magnetic field trapping (from cryomodule perspective!)

Speaker: Elvin Harms (Fermilab)

Slides Peterson-LCLS-II-CMcooldownBriefConcept-1Dec2014-1.pptx

16:20 ESS cryomodule test stands

Speaker: Mr Wolfgang Hees (ESS)

14:00 → 17:30 WG 4 Cavity Fabrication and Preparation

14:00 Open discussion with cavity fabricators based on questions presented

15:00 Lab and Fabricator discussion

16:00 XFEL 3.9GHz cavity fabrication experience

Speaker: Carlo Pagani (INFN Milano - LASA)

Slides 3H_XFEL_Fabrication_TTC.pptx

16:10 SRF activities at MHI

Speaker: Mr Hiroshi HARA (Mitsubishi Heavy Industries, Ltd.)

Slides TTC2014_presentation_from_MHI（Development_for_mass-production_of_cavity_at_MHI）.pdf

16:20 Current status of JINR activity on Linear Colliders

Speaker: Prof. Grigori Shirkov (Joint Institute for Nuclear Research)

Slides Shirkov-TTC_2014.pptx

16:30 Hydroforming SRF cavities from seamless Nb tubes

Speaker: Masashi Yamanaka (KEK)

Slides TTC2014_yamanaka.pdf TTC2014_yamanaka.pptx

16:40 R&D of advanced fabrication method for HOM coupler

Speaker: Dr Kiyohiko Nohara (Shinohara Press Service Co. Ltd. (SPS))

Slides 2014.12.3_TTC_meeting_presentation_slides.pdf 2014.12.3_TTC_meeting_presentation_slides.pptx

16:50 New insights into 2nd sound quench evaluation

Speaker: Mr Yegor Tamashevich (Uni Hamburg / DESY)

Slides New_insights_into_Second_sound_quench_evaluation.pptx

17:00 Statistical model for field emitter activation on Niobium to estimate the electron loading in high-gradient accelerating structures

Speaker: Mr Stefan Lagotzky (Bergische Universität Wuppertal)

Slides TTC2014_Scaling-SL.pdf TTC2014_Scaling-SL.pptx

17:10 discussion

Thursday, 4 December

09:00 → 12:30 WG 5 Low beta and Crab Cavities

09:00 Integrated test at FRIB

Speaker: Mr Chris Compton (Facility for Rare Isotope Beams (FRIB))

Slides 1-Integration_Testing-compton.pptx

09:08 Dressed spoke cavity test results at FNAL

Speaker: Dr Andy Hocker (Fermilab)

Slides STCforTTC2014_DEC.pptx

09:16 Development of spoke012 cavities for China ADS Injector I test cryomodule

Speaker: Dr Jiyuan Zhai (IHEP)

Slides Development_of_Spoke012_cavities_for_China_ADS_Injector_I_test_cryomodule.ppt

09:24 Plans for integrated testing at RISP

Speaker: Dr Hyung Jin Kim (Institute for Basic Science)

Slides RAON_PLAN_HJKIM.pptx

09:32 discussion

09:42 Magnetic shielding studies at FRIB

Speaker: Mr Chris Compton (Facility for Rare Isotope Beams (FRIB))

Slides 1-Magnetic_research-compton.pptx

09:50 Magnetic shielding for China ADS Spoke012 cavity

Speaker: Dr Jiyuan Zhai (IHEP)

Slides Magnetic_shielding_for_Spoke012_cavities_at_IHEP.ppt

09:58 Magnetic shielding for IFMIF CMs

Speaker: Mr Nicolas BAZIN (CEA)

Slides TTC-NBazin_IFMIF_magnetic_shielding.pptx

10:06 discussion

10:16 coffee break

10:31 Custom welding for post fabrication frequency tuning

Speaker: Mr Chris Compton (Facility for Rare Isotope Beams (FRIB))

Slides 1-Freq_Research-compton.pptx

10:39 Fabrication and post-fabrication steps for reaching target freq in spoke cavities

Speakers: Leonardo Ristori (Fermilab), Timergali Khabiboulline (Fermilab)

Slides WG5_Khabiboulline_SSR1_freq.pdf

10:47 Frequency control of spoke012 cavities

Speaker: Dr Jiyuan Zhai (IHEP)

Slides Frequency_control_of_spoke012_cavities.ppt

10:55 Resonance control/microphonics in spoke cavities

Speaker: Dr Yuriy Pischalnikov (Fermilab)

Slides Recent_Microphonics_Measurements_Using_the_SSR1_Prototype_TTC2014_V2.pptx

11:03 Reaching goal freq in IFMIF HWRs

Speaker: Mr Nicolas BAZIN (CEA)

Slides TTC-NBazin_IFMIF_frequency_HWR.pptx

11:11 Reaching goal freq in Spiral2 QWR: results

Speaker: Dr Sebastien Bousson (IPN Orsay)

Slides Bousson_SP2_QWR_reaching_frequency_goal.pptx

11:19 discussion

11:29 Prototype cavities and cyromodule development for HL-LHC crab cavities

Speaker: Rama Calaga (CERN)

Slides TTC_Crabs_Calaga.pdf

11:44 Compact quarter wave crab cavity: design, fabrication and testing challenges

Speaker: Dr Sergey Belomestnykh (Brookhaven National Laboratory)

Slides TTC_2014_KEK_Comapct_QWCC_challenges_Belomestnykh.pptx

11:59 Development of multi-cell SC deflection cavity with no HOM-couplers for LCLS-II and PIP-III projects

Speaker: Dr Andrei Lunin (FNAL)

Slides TTC_2014_Lunin.pptx

12:09 Development of SC spoke cavity for electron accelerator in Japan - Multipactor simulation of 325MHz SC spoke cavity

Speakers: Masaru Sawamura (JAEA), Dr Takayuki Kubo (KEK)

Slides TTC_WG5_sawamura.pptx WG5_kubo.pdf

09:00 → 12:30 WG 6 Peripheral Key Components

09:00 Review of world-wide tuner designs and developments

Speaker: Eiji Kako (KEK)

Slides 01_Kako,_Review_of_Tuner_Design.pptx

09:20 Tuner development at CEA-Saclay

Speaker: Dr Guillaume Devanz (CEA-Irfu)

Slides WG6_SACLAY_TUNER_GDZ_000.pdf

09:35 Tuner development at CERN

Speaker: Mr Kurt Artoos (CERN)

Slides PresentationTTC.pptx

09:50 Development of LCLS-II tuner

Speaker: Dr Yuriy Pischalnikov (Fermilab)

Slides LCLS_II_Tuner_Dec_4_V1.pdf

10:05 Piezo radiation resistance

Speaker: Mr Nicolas Gandolfo (IPN Orsay)

Slides TTC_meeting_Gandolfo_Piezo.pptx

10:20 discussion

10:30 Challenge for mass production of E-XFEL input couplers

Speaker: Dr Walid kaabi (LAL)

Transparents TTC_Meeting_Dec_2014_KEK_2.pptx

10:35 Modified TTF3 coupler design and related R&D for LCLS-II

Speaker: Marc Ross (Fermilab)

10:40 IFMIF power coupler conditioning test results

Speaker: Dr Hassen JENHANI (IRFU/CEA)

Slides IFMIF_POWER_COUPLER_TTC_12_2014_v0_1.pptx

10:52 Study of low SEE coefficient Alumina for SRF Power-Coupler Window

Speaker: Mr Koichi Iwamoto (KYOCERA Corporation)

Slides TTC-WG6KYOCERA141201-2.ppt

11:04 Fabrication of STF-type couplers plug-compatible with TTF3-type couplers

Speaker: Mr OSAMU YUSHIRO (Toshiba -TETD)

Slides TETD_presentation_TTC_201412.pdf

11:16 HOM power challenge for CEPC

Speaker: Dr Jiyuan Zhai (IHEP)

Slides HOM_power_challenge_for_CEPC.pptx

11:28 discussion

12:30 → 13:30 Lunch

13:30 → 14:30 Technical Board meeting

14:30 → 17:00 KEK Tours (STF, cERL, CFF)

14:30 → 16:30 Preparation for Summary Talk

16:30 → 18:00 KEK Tours for Conveners (STF and cERL)

18:15 → 18:16 Transportation to Dinner place

19:00 → 21:00 Dinner

Friday, 5 December

09:00 → 09:20 Summary of HOMSC14 Workshop

Speaker: Dr Jacek Sekutowicz (DESY)

Slides TTC-KEK_Summary_HOMSC14-v4.pptx

09:20 → 09:40 Summary of Clean Room Assembly Workshop

Speaker: Dr Catherine MADEC (CEA-SAclay)

Slides CR_assy_TTC_topical_summary-V2.pptx

09:40 → 10:00 Summary of Thin Film Workshop

Speaker: Prof. Enzo Palmieri (INFN - LNL)

Slides 121_-_KEK_Workshop_Summary.pdf 121_-_KEK_Workshop_Summary.pptx

10:00 → 10:15 Summary Talk, WG1 (Module Tests and Procedures)

Speakers: Dr Denis Kostin (DESY), Elvin Harms (Fermilab)

Slides WG1_highlights.pptx

10:15 → 10:30 Summary Talk, WG2 (Module Assembly -post clean room)

Speakers: Mr Kay Jensch (DESY), Paolo Pierini (INFN Sezione di Milano - LASA), Dr Sang-ho Kim (Oak Ridge National Laboratory), Mrs Serena Barbanotti (DESY)

Slides TTC_Meeting_KEK_–_WG2__summary.pptx

10:30 → 11:00 Coffee break

11:00 → 11:15 Summary Talk, WG3 (High Qo)

Speakers: Charles Reece (Jefferson Lab), Dr Detlef Reschke (DESY), Dr Gianluigi Ciovati (Jefferson Lab)

Slides TTC_WG3_Summary.pptx

11:15 → 11:30 Summary Talk, WG4 (Cavity Fabrication and Preparation)

Speakers: Mr John Mammosser (ORNL/SNS), Mr Kensei Umemori (KEK)

Slides WG4_Closout_3.pptx

11:30 → 11:45 Summary Talk, WG5 (Low beta and Crab Cavities)

Speakers: Dr Jiyuan Zhai (IHEP), Robert Laxdal (TRIUMF), Dr Sebastien Bousson (IPN Orsay)

Slides Report_from_WG5.pptx

11:45 → 12:00 Summary Talk, WG6 (Peripheral Key Components)

Speakers: Prof. Akira Yamamoto (KEK), Dr Guillaume Devanz (CEA-Irfu)

Slides WG6_summary-ay-final.pptx

12:00 → 12:10 TB report

Speaker: Eiji Kako (KEK)

Slides Summary_of_TTC-TB_meeting_at_KEK,_2014_Decmber_04.pptx

12:10 → 12:25 CB report

Speaker: Dr Olivier Napoly (CEA-Saclay)

Slides CB_report.pptx

12:25 → 12:30 Closing

Speaker: Dr Olivier Napoly (CEA-Saclay)