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TTC 2020

4–7 Feb 2020
CERN
Europe/Zurich timezone

TTC 2020 Administrative Support

Session

Working Group Session

4 Feb 2020, 11:00
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

Several rooms
400
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Conveners

Working Group Session: WG2_Couplers and Auxiliaries

  • Naruhiko Sakamoto (RIKEN)
  • Sang Hoon Kim (FRIB)
  • Eric Montesinos (CERN)

Working Group Session: WG2_Couplers and Auxiliaries

  • Sang Hoon Kim (FRIB)
  • Eric Montesinos (CERN)
  • Naruhiko Sakamoto (RIKEN)

Working Group Session: WG2_Couplers and Auxiliaries

  • Naruhiko Sakamoto (RIKEN)
  • Sang Hoon Kim (FRIB)
  • Eric Montesinos (CERN)

Working Group Session: WG2_Couplers and Auxiliaries

  • Naruhiko Sakamoto (RIKEN)
  • Eric Montesinos (CERN)
  • Sang Hoon Kim (FRIB)

Working Group Session: WG4_New Fabrication Methods (1 /2)

  • Tug Arkan (FNAL)
  • Hiroshi Sakai (KEK)
  • Stephane Berry (CEA)

Working Group Session: WG4_New Fabrication Methods (2 /2) and Alternative Cooling Techniques

  • Hiroshi Sakai (KEK)
  • Stéphane BERRY (CEA-Saclay)
  • Tug Arkan (FNAL)

Working Group Session: WG4_Non standard concepts

  • Stéphane BERRY (CEA-Saclay)
  • Hiroshi Sakai (KEK)
  • Tug Arkan (FNAL)

Working Group Session: WG4_Robotic Techniques

  • Tug Arkan (FNAL)
  • Stéphane BERRY (CEA-Saclay)
  • Hiroshi Sakai (KEK)

Presentation materials

There are no materials yet.

  1. 61. Fundamental studies for power coupler in KEK (10'+8')
    Yasuchika Yamamoto (KEK)
    04/02/2020, 11:00

    Abstract:
    KEK is concentrating on studies of copper plating and ceramic from 2016. Recently, in study of copper plating, it became clear that copper-sulfate is much better than copper-pyrophosphate by analysis of RRR and grain size for each. On the other hand, KEK constructed measurement system of secondary electron emission for ceramic, and have been measured many samples provided from five...

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  2. 62. R&D Toward a 500 kW CW High Power Coupler with Variable Qext (10'+8')
    Wencan Xu
    04/02/2020, 11:18

    Abstract:
    The SRF cavities for the electron storage ring of an Electron-Ion Collider (EIC) to be built at BNL require CW high power couplers with variable Qext. The approach taken to develop this coupler was to leverage an existing 500 kW CW fixed coupler design, and implement the coupling adjustment by means of a waveguide tuner section adjacent to the coupler. This talk will briefly...

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  3. 63. Qext studies for the 1.5 GHz BESSY VSR couplers (10'+8')
    Emmy Sharples
    04/02/2020, 11:36

    Abstract:
    The 1.5 GHz couplers for the high-current CW variable pulse-length demonstrator in BESSY II, are now out in the process of being manufactured. These couplers are designed to provide variable coupling, with the initial design brief that their Qext range was from 6x106 to 6x107. Through the process of design development it was found that a full order of magnitude range could not be...

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  4. 64. Our experiences and troubles on FPCs for RIKEN QWR (10'+8')
    Kazutaka Ozeki (RIKEN)
    04/02/2020, 11:54

    Abstract:
    In RIKEN, ten QWRs and ten FPCs were produced.
    The rinsings and RF processes for ten FPCs seemed to have finished without any trouble.
    Three CMs were assembled and installed on the beam line.
    After about two months of evacuation of CMs, a leakage from vacuum window broke out at one of the FPCs.
    Because a basal treatment is difficult, we evacuate the FPC from air side of the...

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  5. 65. Special design considerations of high power input couplers for TEM-type superconducting cavities (10'+8')
    Tongming Huang (IHEP)
    04/02/2020, 12:12

    Abstract:
    High power input couplers of TEM-type superconducting cavities (QWR, HWR, Spoke) usually locate at the cavity body instead of beam pipe, which requests special design considerations in addition to the conventional design criteria. Firstly, the ceramic window may be damaged by field emission (FE) induced electrons. Thus it’s important to ensure no FE electrons can arrive at the...

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  6. 66. Update on FPC progress at DESY (10'+8')
    Denis Kostin (DESY)
    04/02/2020, 14:00

    ABSTRACT

    A Fundamental Power Coupler (FPC) is one of the key subsystems of the SRF accelerator and does need to be addressed in same way, as the SRF cavities are. Currently most of the FPCs for the SRF cavities at DESY are installed in the Eu-XFEL linac (~800), but this is not the only application. The FLASH linac will undergo the update soon
    and CW operation of an SRF accelerator is under...

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  7. 67. Experience with FPCs for the LCLS-II project at JLAB (10'+8')
    Mircea Stirbet (Jefferson Laboratory)
    04/02/2020, 14:18

    Abstract:
    The LCLS II project make used of use of state of the art superconducting cryo-modules RF powered in CW mode by dedicated TTF3 style FPCs. The talk will provide details related with LCLS-II cryo-module production experience at JLAB using this type of couplers.

    Provocative topic:
    The modified TTF3 is a complex coupler, I wished it was simpler. Will this coupler demonstrate...

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  8. 68. Test bench conditioning of the ESS couplers for elliptical cavities (10'+8')
    Christian Arcambal (CEA)
    04/02/2020, 14:36

    Abstract:
    After a short presentation of the architecture and features of the ESS couplers used with elliptical cavities, we will present how we perform the conditioning of the couplers at CEA Saclay and the different diagnostic elements used to check the correct working of the couplers. We will discuss on the consequences of a “bad” TiN coating on the coupler performances during the...

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  9. 69. High power testing of ESS FPCs on the elliptical cavities cryomodules (10'+8')
    Guillaume Devanz (CEA)
    04/02/2020, 14:54

    Abstract:
    We discuss the behavior of the 1.2 MW power couplers on the ESS medium beta elliptical cavities cryomodule during high power test in the Saclay test bunker. We go through three test conditions, room temperature, cold with detuned cavity and with the nominal case of tuned cavities at 2 Kelvin.

    Provocative topic:
    Do we condition FPC enough?

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  10. 70. Technical Issues on RF power coupler for QWR and HWR cavity in RISP (10' + 8')
    Sangbeen Lee (Institute for Basic Science)
    04/02/2020, 15:12

    Abstract
    RF power couplers for QWR and HWR cavity are under the mass production in RISP. We will present the technical issues which occurred during the preparation and test of the RF power couplers. The contamination of the coupler is occurred after the ultra-sonic cleaning (USC) with the DI-water. The USC procedure of the coupler is modified as replacing the DI-water to the ethanol. The...

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  11. 71. R&D Toward High Power Warm SiC Beam Line HOM Absorbers (10' + 8')
    Doug Holmes (BNL)
    04/02/2020, 16:00

    Abstract:
    The SRF cavities for the electron storage ring of an Electron-Ion Collider (EIC) to be built at BNL are planned to operate continuous wave (CW) with beam currents ranging from 0.26 to 2.5A and energies from 5 to 18 GeV. Strong High Order Mode (HOM) damping is necessary to maintain beam stability. Our approach is to use Silicone Carbide (SiC) as a lossy dielectric located in the...

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  12. 72. HOM couplers for crab cavities and challenges (10'+8')
    James Alexander Mitchell (CERN)
    04/02/2020, 16:18

    Abstract:
    Two types of crab cavities will be installed into the LHC as part of the HL-LHC project. To mitigate the problems of large beam-induced heat-loads and instabilities, the higher order modes in both cavities are damped by coaxial couplers. This presentation will detail the HOM damping mechanisms chosen, specifically looking into broad-band damping and limitations with dynamic heat...

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  13. 73. Newest Piezo-Actuators for High Dynamic Rate Operation (10'+8')
    Yuriy Pischalnikov (FERMILAB)
    04/02/2020, 16:36

    Abstract:
    To compensate for SRF cavity Lorentz Force Detuning fast/piezo actuator must operate at high amplitude and high dynamic rate. The piezo-actuator when operated inside insulate vacuum environment with pulses of large amplitude could be overheated quickly. Uncontrollable increase of the piezo actuator temperature could lead to the failure of the actuator, as reported in many papers....

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  14. 74. Compact tuner designed to minimize the intervals of QWRs for RIKEN heavy-ion linac (10'+8')
    Kenji Suda (RIKEN)
    04/02/2020, 16:54

    Abstract:
    The superconducting booster linac at RIKEN (SRILAC) has ten 73-MHz quarter-wavelength resonators (QWRs) that are contained in three cryomodules (CMs).
    Focusing element of quadrupole magnets at room temperature were installed between CMs. In order to obtain optimum beam dynamics, an intervals of QWRs was set as small as 110 mm. Frequency tuning during cold operation is...

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  15. 75. Resonance control with pneumatic slow frequency tuners for FRIB > half-wave resonators (10' + 8')
    John Popielarski (FRIB), Sang Hoon Kim (FRIB)
    04/02/2020, 17:12

    Provocative topics:
    Mechanical modes integrated with a pneumatic tuner, magnetic hygiene with a pneumatic tuner, use of 'industrial-class' proportional solenoid valves for large-scale SRF accelerators

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  16. 76. Power Couplers - Technology, manufacturing, and four ways to procure for half the price (15' + 8')
    Steve Einarson (CPII)
    05/02/2020, 11:00

    Abstract:
    Power couplers provide the vacuum and thermal interface between the superconducting cavity and the room temperature waveguide components, and transmit microwave power. The production of Power Couplers require a unique set of manufacturing processes. Procurement costs can vary widely for a number of reasons. This paper will show the critical technologies required and the breakdown of...

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  17. 77. THALES experience for EU-XFEL project – From the (non)pre-industrialization phase to mass production (15'+8')
    Stephane Bethuys (THALES)
    05/02/2020, 11:23

    Abstract:
    In July 2010, THALES Electron Devices (now THALES Avionics France SAS) in consortium with Research Instrument has be awarded by CNRS/IN2P3 for the mass production of 670 RF couplers at 1.3GHz for the EU-XFEL project in Hamburg. This positive outcome has been the result of a long journey started in 2004 by several steps of consultation and discussions between the laboratories acting...

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  18. 78. Development of fundamental power couplers for several years at CETD (15' + 8')
    Masao Irikura (CANON)
    05/02/2020, 11:46

    Abstract:
    CETD (former company name: TETD) has developed and manufactured FPCs since more than 30 years ago in collaboration with KEK or other research institutes.
    Recent years we succeeded in contract with overseas customers and we made efforts to solve various problems in order to satisfy customers requirements.
    In this talk, our products developed in last few years will be introduced and...

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  19. 79. Remarks on the industrial production of FPC (15' + 8')
    Daniel Trompetter (RI Research Instruments GmbH)
    05/02/2020, 12:09

    Abstract:
    The talk will address the positive and negative experiences that RI gained during the production of FPC in large scale series (E-XFEL, LCLS-II) and small scale projects. The most critical processes and head-aches will be reflected from “behind the scenes”.
    The specifications do often cut the edge of achievable copper plating, TIN deposition and mechanical tolerances in a serial...

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  20. 80. Seamless cavities via electrodeposition
    Lucia Lain Amador (CERN)
    05/02/2020, 14:00
  21. 81. Developments of Niobium atomize powder for superconducting
    Takeshi Dohmae (KEK)
    05/02/2020, 14:15
  22. 82. Metal Additive Manufacturing at CERN in general and SRF Niobium
    Romain Gerard
    05/02/2020, 14:30
  23. 83. Electron beam welding for cavity production, collaboration with KEK on internal welding of 1.3GHz type cavities
    Peter Oving (TECHMETA Company)
    05/02/2020, 14:45
  24. 84. Novel Technologies applied to SRF (cavity) fabrication
    Said Atieh (CERN)
    05/02/2020, 15:00
  25. 85. Fabrication Experience with Balloon SSR Cavity at TRIUMF
    Robert Edward Laxdal
    05/02/2020, 15:15
  26. 86. RFD crab cavities manufacturing experience at CERN
    Marco Garlasche (CERN)
    05/02/2020, 16:00
  27. 105. Methods and results of laser welding of niobium
    Kyle Branigan (II-IV)
    05/02/2020, 16:15
  28. 88. Stand-Alone Cryocooler-Based Module for the ATLAS Multi-User Upgrade
    Michael Kelly (ANL)
    05/02/2020, 16:30
  29. 89. An effective thermal link for cooling cryo-magnetic systems : The Pulsating Heat Pipe (PHP)
    Dr Bertrand Baudouy (CEA Paris-Saclay)
    05/02/2020, 16:45
  30. 90. Developing conduction-cooled SRF cavities and first test results
    Dr Ram Dhuley (Fermi National Accelerator Laboratory)
    05/02/2020, 17:00
  31. 91. Results from a multi-metallic conduction-cooled SRF single-cell cavity
    Robert Alan Rimmer
    05/02/2020, 17:15
  32. 92. Measurement results of moving particles during STF cryomodule assembly under slow pumping/venting in KEK (12/20)
    Hiroshi Sakai (KEK)
    06/02/2020, 09:00
  33. 93. IFMIF/QST on dust particle measurements by using "a vacuum particle counter"
    Takashi Ebisawa (QST)
    06/02/2020, 09:15
  34. 94. Cryomodule design, assembly and installation utilizing “KOACH” system
    Nari Yamada (RIKEN)
    06/02/2020, 09:30
  35. 95. plasma processing and particulate's composition
    Bianca Giaccone (Fermilab)
    06/02/2020, 09:45
  36. 96. Development of the position monitor by white light interferometer method in cryomodule at cERL
    Hiroshi Sakai (KEK)
    06/02/2020, 10:00
  37. 97. Computer Vision solutions for Robot-assisted technology in SRF assembly at Fermilab
    Silvia Zorzetti (FNAL)
    06/02/2020, 10:15
  38. 98. Robotics HPR Application for Elliptical FRIB Upgrade Cavity
    Laura Popielarski (FRIB/MSU)
    06/02/2020, 11:00
  39. 99. Robot assisted cavity HPR and assembly at IMP
    Hao GUO (IMP), Teng Tan (IMP)
    06/02/2020, 11:15
  40. 100. Remote handling of UHV beam pipe connections in high-radiation zones
    Lukasz Piotr Krzempek (CERN)
    06/02/2020, 11:30
  41. 101. Robotic disk stacking for the production of RF structures
    Riccardo Zennaro (PSI)
    06/02/2020, 11:45
  42. 102. Chemical & Electropolishing facility for niobium (HL-LHC) and copper (FCC) substrates
    Valentin Gerbet
    06/02/2020, 12:00
  43. 87. Seeking for a novel fabrication technology large-bore SRF-QWR cavity for 1-ampare class linac
    Hiroki Okuno (RIKEN)
    06/02/2020, 12:15
  44. 103. discussion time for the session
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