TESLA Technology Collaboration (TTC) Meeting

6 Feb 2018, 08:30 → 9 Feb 2018, 18:30 Europe/Rome

Aula A, C & D (Physics Department)

Carlo Pagani (MI)

The mission of the TESLA Technology Collaboration is to advance SCRF 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.
You are welcome to the yearly TTC meeting hosted in Milano by the Università degli Studi di Milano and INFN Sezione di Milano.

INFN Istituto Nazionale di Fisica Nucleare Sezione di Milano	Università degli Studi di Milano Dipartimento di Fisica

Meeting Poster Locandina.pdf

Tuesday, 6 February ¶

08:30 Registration

Welcome¶

1 INFN-Milan, welcome and logistics¶

Speaker: Carlo Pagani (MI)

Slides Welcome_and_Logistics_CP_DS_RP.pptx

Opening Plenary 1: Welcome and introduction, status and progress reports¶

Convener: W.-D. Moeller

2 Introduction and update from last collaboration meeting¶

Speaker: Hasan Padamsee (Cornell)

Slides Milan_TTC_opening_Padamsee.pptx

3 LCLS-II progress with cavity and CM production and testing¶

Speaker: Marc Ross (SLAC)

Slides Ross_INFN_TTC_2018_0206.pptm

4 Recent progress in SRF cavity components and module tests at FRIB¶

Speaker: Kenji Saito (FRIB)

Slides TTC_Meeting_February_2018_final.pptx

10:30 Coffee Break

WG-1 Session 1: CW SRF cavity operational challanges - high beta cavities¶

Conveners: Dr A. Neumann, Dr G. Wu, Dr J. Zhai

5 CW accelerating module test progress at DESY¶

Speaker: Dr Denis Kostin (DESY)

Slides CW accelerating module test progress at DESY

6 15 years of CW SRF operation at ELBE¶

Speaker: Dr Andre Arnold (HZDR ELBE)

Slides TTC_Andre_Arnold_HZDR.pptx

7 3.9 GHz CW challenges and recent horizontal test results for 3.9 GHz Cavity¶

Speaker: Dr Sebastian Aderhold (FNAL)

Slides TTC18_Aderhold_final.pdf

8 Large Grain Cavities in a CEBAF Cryomodule¶

Speaker: Dr Gianluigi Ciovati (JLAB)

Slides Large_grain_cavities_in_a_CEBAF_cryomodule-1.pptx

WG-3 Session 1¶

Conveners: C. Hovater, G. Huang, M. Omet

9 LLRF commissioning of 25MeV Proton SC Linac and design for 500MeV CW Linac¶

Speaker: Dr Zheng Gao (IMP)

Slides TTC_Talk_Gao.pdf

10 SNS LLRF/Operation Experience¶

Speaker: Dr Mark Crofford (SNS)

Slides 2_TTC_Milan_r1.pptx

11 CEBAF LLRF and C100 Experience¶

Speaker: Dr Curt Hovater (JLAB)

Slides TTC_CH.pptx

12 LLRF of the European XFEL¶

Speaker: Dr M. Omet (Deutsches Elektronen-Synchrotron)

Slides OMET_Presentation_LLRF_of_the_European_XFEL_TTC_20180206_v2.pptx

13 Discussion¶

WG-1 Session 2: Flux Trapping in CW SRF¶

Conveners: A. Neumann, G. Wu, J. Zhai

14 Experiment of Active Coil Cancellation on a LCLS-II cryomodule¶

Speaker: S. Chandrasekaran (FNAL)

Slides 20180206-Saravan-TTC-Field_Cancellation_Test_v3-regular.pdf

15 Flux expulsion experiments at KEK¶

Speaker: Dr Kensei Umemori (KEK)

Slides Flux_expulsion_experiments_at_KEK.pptx

12:30 Lunch

WG-1 Session 2: Flux Trapping in CW SRF¶

Conveners: A. Nuemann, G. Wu, Mr Jiyuan Zhai (IHEP)

16 Fundamental Studies of Flux Trapping¶

Speaker: Dr Sam Posen (FNAL)

Slides Posen-TTC2018-flux.pptx

17 Achieving High Q in LCLS-II Cavity Production¶

Speaker: Dr Dan Gonella (SLAC)

Slides lclsii_cavity_performance_gonnella.pptx

18 Trapped Flux Studies in Horizontal Tests¶

Speaker: Dr Julia-marie Koeszegi (HZB)

Slides TTC2018_koeszegi.pptx

19 Flux Expulsion of LCLS-II Cryomodules¶

Speaker: Dr Genfa Wu (FNAL)

Slides Wu_Cool_Down_Studies_of_LCLS-II_Cryomodules.pptx

20 Trapped Flux Studies on Low Beta Cavities at IPNO¶

Speaker: Dr David Longuevergne (IPN Orsay)

Slides TTC_Milano_WG1_S2_Longuevergne_v3.pptx

21 Discussion¶

WG-3 Session 2¶

Conveners: C. Hovater, G. Huang, M. Omet

22 Microphonics¶

Speaker: Dr A. Neumann (HZB)

Slides TTC2018_Milano_Neumann_WG3_1_Microphonics.pptx

23 Microphonics Experience at cERL¶

Speaker: Dr Hiroshi sakai (KEK)

Slides TTC2017_sakai_final.pdf

24 He Pressure effects in CW cryomodules¶

Speaker: Dr Ed Daly (JLAB)

Slides 0L04_Helium_Bath_Pressure_Study_06FEB18.pptx

25 Impact of Thermo-acoustics oscillations on the LCLS II CM microphonics¶

Speaker: Dr Yuriy Pischalnikov (FNAL)

Slides PreTAO-TT2018_V2.pptx

15:30 Coffee Break

WG-1 Session 3: CW SRF cavity operational challenges - low beta cavities¶

Conveners: A. Neumann, G. Wu, J. Zhai

26 Cavity Performance Limitations in FRIB Cryomodules¶

Speaker: Dr Kenji Saito (FRIB)

Slides TTC_Meeting_201802_WG1_final_Saito.pptx

27 Preparation, processing, assembling and testing of spoke resonators: from SSR1 jacketed cavities to string assembly¶

Speaker: Dr Mattia Parise (FNAL)

Slides MattiaParise_Talk.pptx

28 Fabrication and VT results in RIKEN-QWR Cavity¶

Speaker: Dr Naruhiko Sakamoto (RIKEN)

Slides NaruhikoSakamoto-WG1-3.pptx

29 Analysis of HIE ISOLDE cavity results¶

Speaker: Dr Akira Miyazaki (CERN)

Slides AkiraMiyazaki__TTCMilano_upload.pdf

30 Nb/Cu cavity development at IMP for the stable operation of high current CW beam¶

Speaker: Dr Teng Tan (IMP)

Slides TTC_Milano_Teng_-_NEW.pptx

31 Discussion¶

WG-3 Session 3¶

Conveners: C. Hovater, G. Huang, M. Omet

32 Resonance Control at FNAL¶

Speaker: Dr Yuriy Pischalnikov (FNAL)

Slides ARC_FNAL_YuriyPi_feb_6.pptx

33 Microphonics measurement and compensation in SRF cavities¶

Speaker: Dr Radoslaw Rybaniec (DESY)

Slides RR_SRF_Micro_Milano.pdf

34 Passive Microphonics Control¶

Speaker: Dr Tom Powers (JLAB)

Slides TTC_Microphonics_Talk_powers_1.pdf

CB Meeting¶

Wednesday, 7 February ¶

Plenary 2¶

Convener: Paolo Pierini

35 Thin film research: CERN experience and possible future applications¶

Speaker: Walter Venturini Delsolaro (CERN)

Slides Nb-Cu_CERN_experience_and_possible_future_applications.pptx

36 ESS prototype testing and test-stands progress¶

Speaker: Roger Ruber (Uppsala University)

Slides 20180207-ESS_Testing_and_Test_Stands.pptx

37 SRF technology in China; Infrastructure and industrialization for various projects¶

Speaker: Dong Wang (SINAP)

Slides TTC-Infrastructure-Industry-China20180207.pdf

10:30 Coffee Break

WG-1 Session 4: Field Emission in CW SRF¶

Conveners: A. Neumann, G. Wu, J. Zhai

38 Field Emission Comparison between CW and Pulsed Cryomodules¶

Speaker: Olivier Napoly (CEA)

Slides 20180207_TTC_Meeting.pdf

39 Current Understanding of Field Emission in CEBAF Linac¶

Speaker: Dr Rongli Geng (JLAB)

Slides Geng_TTC2018_Milan_Understanding_FieldEmission_in_CEBAF.pptx

40 Field Emission Results for LCLS-II Production (VT to CM)¶

Speaker: Dr Dan Gonella (SLAC)

Slides lclsii_cm_field_emission_gonnella.pptx

WG-3 Session 4¶

Conveners: C. Hovater, G. Huang, M. Omet

41 Microphonic Noise and Mechanical Resonances at CMTF and the European XFEL¶

Speaker: Mr Andrea Bellandi (DESY)

Slides Presentation_micro_and_mech_TTC_2018.pptx

42 Individual and vector sum CW operation of X-FEL module in high Ql (6e7) conditions¶

Speaker: Dr Wojciech Cichalewski (DMCS)

Slides 2_WCichalewski.pdf

43 CEBAF Gradient Team¶

Speaker: Dr Clyde Mounts (JLAB)

Slides 3_Milan_2018_Gradient_Management_fin_1.pdf

44 The challenge of operating a superconducting cavity at 5 Hz bandwidth¶

Speaker: Dr Daniel Valuch (CERN)

Slides 4_TTC18_Valuch.pptx

45 Early Results of the LCLS-II LLRF System¶

Speaker: Dr Alessandro Ratti

Slides Ratti-LCLS-II-LLRF-Status-TTC-Feb18-R2.pptx

WG-1 Session 5: Planned CW SRF¶

Conveners: Dr A. Neumann, Dr G. Wu, Mr J. Zhai (IHEP)

46 SRF system for a new 6 GeV synchrotron light source in Beijing¶

Speaker: Dr Pei Zhang (IHEP)

Slides 20180207-SRF-System-HEPS-PeiZhang.pptx

47 Higher Harmonic Cavity for Bessy Upgrade¶

Speaker: Dr Andranik Tsakanian (HZB)

Slides TTC2018_Workshop_Tsakanian_Print.pdf

48 Developing 3.9 GHz cavities for CW SCLF¶

Speaker: Dr Jinfang Chen (SINAP)

Slides TTC-Developing_3.9_GHz_cavity_for_SCLF-JFChen.pptx

12:30 Lunch

Special Talks¶

Convener: Eiji Kako (KEK)

49 SRF from INFN/Milano¶

Speaker: Carlo Pagani (INFN-UNIMI)

Slides C.Pagani_SRF_at_INFN_Milano-LASA.pptx

50 New non-accelerator applications of SRF technology¶

Speaker: Alexander Romanenko (FNAL)

Slides TTC2018_Romanenko_NonAcceleratorApps.pptx

51 Summary report on the SRF in a dirty machine workshop¶

Speaker: Emmy Sharples (HZB)

Slides presentation_for_the_TTCv2.pptx

15:30 Coffee Break

Hot-topic: Performance recovery: Cavity, Modules, Linacs¶

Conveners: E. Sharples, H. Sakai, P. Michelato

52 Plasma ignition in LCLS-II cavities¶

Speaker: Dr Martina Martinello (FNAL)

Slides Plasma_ignition_TTC2018-TD-126712.pptx

53 Multipacting and conditioning cases for EU-XFEL¶

Speaker: Dr Denis Kostin (DESY)

Slides HotTopic_EXFEL_DKostin.pptx

54 Performance recovery on CEBAF¶

Speaker: Dr Mike Drury (JLAB)

Slides Performance_Recovery_at_CEBAF.pptx

55 Performance recovery by using horizontal HPR¶

Speakers: Dr Eiji Kako (KEK), Dr Michiru Nishiwaki (KEK)

Slides Nishiwaki_HHPR_short.mp4 Nishiwaki_Rev2_SKB-SCC-HHPR.pptx

56 Strategy for operation and recovery of performance at SNS¶

Speaker: Dr John Mammosser (SNS)

Slides Strategy_for_operation_and_recovery_of_performance_at_SNS.pptx

57 Discussion¶

TB Meeting¶

Thursday, 8 February ¶

Plenary 3¶

Convener: Akira Yamamoto (CERN/KEK)

58 European-XFEL SC accelelator commissioning and operation¶

Speaker: Dr Julien Branlard

Slides 2018_02_08_-_J.Branlard_-_TTC_-_XFEL_commissioning_and_operation.pptx

59 Report from TTC topical workshop on "pushing cavity performance limits"¶

Speaker: SERGEY BELOMESTNYKH (FNAL)

Slides Report_from_the_TTC_Topical_WS.pptx

60 Frequency dependence of surface resistance and non-equilibrium superconductivity¶

Speaker: MARTINA MARTINELLO (FNAL)

Slides FreqDep_TTC2018_MM.pptx

10:30 Coffee Break

WG-2 Session 1 - Couplers¶

Conveners: K. Yamamoto, R. Paparella, Y. Pischalnikov

61 Coupler operation and R&D activities at IMP¶

Speaker: Dr Tiancai Jiang (IMP)

Slides TTC2018_Coupler_talk_JIANG_TC.pptx

62 High Power Main couplers for CW/RF operation¶

Speaker: Dr Sergey Kazakov (FNAL)

Slides TTC_2018_couplers.pdf

63 Main coupler R&D at DESY¶

Speaker: Dr Denis Kostin (DESY)

Slides Main Coupler R&D at DESY

64 LCLS II cavity HOM coupler tuning and measurements during cold test¶

Speaker: Dr Timergali Khabiboulline (FNAL)

Slides TTC2018_HOM_coupler_Khabiboulline.pdf

65 Discussion¶

WG-4 Session 1 - Up to 40 MV/m, N-infusion¶

Conveners: A. Grassellino, K. Umemori, L. Steder

66 Recent results of cavity infusion at DESY¶

Speaker: Dr Christopher Bate (University of Hamburg)

Slides TTC_Mailand_2018_Christopher_Bate__V3.pptx

67 N-infusion at KEK / J-PARC¶

Speaker: Dr Kensei Umemori (KEK)

Slides N-infusion_KEK_umemori.pdf

68 Progress in N-infusion at FNAL¶

Speaker: Dr Mattia Checchin (FNAL)

Slides Checcin_TTC_2018_Milan_v1.pptx

69 Sample study for N-infusion¶

Speaker: Dr Guiherme Semione (DESY)

Slides ttc_Semione_2018.pdf

70 Latest material analysis on state of the art treatments (including doping and infusion cutouts)¶

Speaker: Dr Zuwhan Sung (FNAL)

Slides ZHSung_-_TTC_Meeting_Feb_6-9_2018-WG4-Thus_pdf.pdf

71 Discussion¶

12:30 Lunch

WG-2 Session 2 - Tuners¶

Conveners: K. Yamamoto, R. Paparella, Y. Pischalnikov

72 Lessons learned from ADS spoke cavity tuners and helium vessels¶

Speaker: Dr Mi Zhenghui (IHEP)

Slides Lessons_learned_from_ADS_spoke_cavity_tuners_and_helium_vessels-V3.ppt

73 Development of Tuners for LCLS-II (1.3 GHz, 3.9 GHz) and PIP II (all cavities)¶

Speaker: Dr Yuriy Pischalnikov (FNAL)

Slides Development_of_Tuners_at_FNAL_YuriyPi.pptx

74 MYRRHA SC linac spoke cavity system¶

Speaker: Dr Nicolas Gandolfo (IPNO)

Slides 08-02-2018_-_TTC_Meeting_2018_-_MYRRHA_Spoke_Tuner.pptx

75 C-ADS tuner systems¶

Speaker: Dr Tiancai Jiang (IMP)

Slides TTC2018_talk_tuner_JIANGtc.pptx

76 Discussion¶

WG-4 Session 2 - Higher than 50 MV/m¶

Conveners: A. Grassellino, K. Umemori, L. Steder

77 Nb3Sn from Cornell¶

Speaker: Dr Ryan Porter (Cornell University)

Slides Porter_TTC_Milan_2018.pptx

78 Limiting defects on Nb3Sn coating cavity at FNAL¶

Speaker: Dr Jae-Yel Lee (Northwestern University)

Slides Lee_Limiting_defects_on_Nb3Sn_coating_cavity_in_FNAL_TTC_2018_in_Milan_180208_.pdf

79 RF critical field of Nb3Sn and N-doped niobium¶

Speaker: Dr Sebastian Keckert (HZB)

Slides 20180208_keckert.pdf

80 Higher gradients by utilizing non-equilibrium superconductivity¶

Speaker: Dr Alex Romanenko (FNAL)

Slides TTC2018_Gradient_Romanenko.pptx

81 Discussion¶

15:30 Coffee Break

WG-2 Session 3 - Cryomodules¶

Conveners: K. Yamamoto, R. Paparella, Y. Pischalnikov

82 Spoke cavity cryomodule for C-ADS¶

Speaker: Dr Rui Ge (IHEP)

Slides Spoke_Cavity_Cryomodule_for_C-ADS.ppt

83 Cryomodule for RIKEN QWR¶

Speaker: Dr Kazutaka Ozeki (RIKEN)

Slides TTC2018_WG2-3_ozeki.pdf

84 IFMIF HWR cryomodule and magnetic shield properties¶

Speaker: Dr Juliette Plouin (CEA)

Slides PLOUIN_TTC2018.pptx

85 Troubleshooting and stability analysis of CW RF operation at China ADS front-end demo linac¶

Speaker: Dr Yuan He (IMP)

Slides TTC2018-WG2-Trouble_shorting_of_CADS-hey.pptx

86 JLAB CMTF Fast Cooldown¶

Speaker: Dr Naeem Huque

Slides JLab_CMTF_Fast_Cooldown.pptx

87 Discussion¶

WG-4 Session 3 - Pulsed cryomodules and components¶

Conveners: A. Grassellino, K. Umemori, L. Steder

88 High power coupler¶

Speaker: Dr Yasuchika Yamamoto (KEK)

Slides Power_Coupler_in_Pulsed_Operation_20180208.pptx

89 Challenges with PIP-II cryomodule¶

Speaker: Dr Allan Rowe (FNAL)

Slides TTC_Milan_Rowe.pdf

90 Experience with commissioning of high-Gradient cryomodule for Euro-XFEL¶

Speaker: Dr Mathieu Omet (DESY)

Slides OMET_Presentation_Experience_with_Commissioning_on_High-Gradient_Cryomodules_for_the_European_XFEL_TTC_20180208_v3.pdf

91 LFD compensation for high-gradient cryomodule¶

Speaker: Dr Yuriy Pishalnikov (FNAL)

Slides ResControlPulseCavities_withMovie_V1.pptx

92 FNAL CM2 with beam - new record¶

Speaker: Dr Daniel Broemmelsiek (FNAL)

Slides Broemmelsiek_FNAL_CM2_with_beam.pptx

93 Discussion on optimum condition for larger beam current operation¶

Speaker: Dr John Mammosser (SNS)

Slides Discussion_on_optimum_condition_for_larger_beam_current.pptx

Summary Preparation¶

Summary preparation (only conveners)

Social Dinner¶

Friday, 9 February ¶

Closing Plenary: Science and Energy by TESLA Technology¶

Convener: Carlo Pagani

94 New energy production pontentialities with SRF Accelerator Driven Systems¶

Speaker: Wenlong Zhan (CAS)

Slides perspective_of_fission_energy_driven_by_SRF-accelerator_2018.pptx

Video Video of the presentation

95 New physics potentialities with SRF based XFELs¶

Speaker: Jochen Schneider (DESY)

Slides Schneider_TTC_Mailand_2018.pptx

Video Broadcast by Università degli Studi di Milano

10:30 Break

Plenary 4¶

Convener: Sergei Belomestnykh

96 Summary Talk-1: WG-1 conveners¶

Slides WG1_Summary_combined_v1.pptx

97 Summary Talk-2: WG-2 conveners¶

Slides WG2_-_Summary.pptx

98 Summary Talk-3: WG-3 conveners¶

Slides WG3_Summary_v3.pptx

99 Summary Talk-4: WG-4 conveners¶

Slides WG4_pulse_cryomodule_summary.pptx

100 TB Report¶

Speaker: Eiji Kako (KEK)

Slides Report_of_TTC-TB_meeting_at_INFN-Milano,_2018_Feb._9.pptx

101 CB Report¶

Speaker: Hasan Padamsee (Cornell)

Slides Milan_TTC_Closing_Padamsee.pptx

102 Closing remarks¶

Speaker: Carlo Pagani (MI)

Slides C.Pagani_Memories__Thanks.pptx

12:45 Lunch Break

LASA lab tour¶