ILC ML & SCRF Baseline Technical Review (ML & SCRF BTR)

Japan
The 4th Building Seminar Hall (KEK Tsukuba)

The 4th Building Seminar Hall

KEK Tsukuba

1-1 Oho, Tsukuba, 305-0801, Japan
Description
The meeting is to be organized as a step for the ILC Global Design Effort (ILC-GDE) to reach the Technical Design Report by the end of 2012. The GDE project management and KEK Linear Collider Office will co-chair the meeting to coordinate the ILC ML & SCRF Baseline Technical Review (ML & SCRF BTR).
SCRF-BTR-Summary-final
Webex Info-JAN-19
Webex Info-JAN-20
Participants
  • Akira Yamamoto
  • Atsushi Enomoto
  • Barry Barish
  • Benno List
  • Brian Foster
  • Chris Adolphsen
  • Christopher Nantista
  • Eckhard Elsen
  • Eiji Kako
  • Ewan Paterson
  • Gerald Dugan
  • Hirotaka NAKAI
  • Hitoshi Hayano
  • Jim Kerby
  • John Carwardine
  • Kaoru Yokoya
  • Kazuko NAGAI
  • Kenji Ueno
  • Kiyoshi Kubo
  • Marc Ross
  • Masanobu MIYAHARA
  • Masashi YAMANAKA
  • Masato Satoh
  • masayuki kumada
  • Maxine Hronek
  • mitsuo AKEMOTO
  • Nicholas Walker
  • Nobu Toge
  • Nobuko Kobayashi
  • Paolo Pierini
  • Richard Kriske
  • Rong-Li Geng
  • Seiya Yamaguchi
  • Shigeki Fukuda
  • Shigeki KATO
  • Shin MICHIZONO
  • Takayuki SAEKI
  • Tetsuo Shidara
  • Thomas Lackowski
  • Tomiko SHIRAKATA
  • Toshiaki Tauchi
  • Toshihiro MATSUMOTO
  • Tsuyoshi Tajima
  • Victor Kuchler
  • Thursday, January 19
    • Welcome Address & Guideline for Main Linac and SCRF
      Convener: Dr Marc Ross (FNAL)
      • 1
        Status and Prospect for ILC at KEK, Japan
        Speaker: Atsuto Suzuki (KEK)
        Slides
      • 2
        Summary of design update proposal
        Speaker: Prof. Akira Yamamoto (KEK)
        Slides
    • 10:15 AM
      Meeting Photo/Coffee/Tea
    • ML Integration
      Convener: Chris Adolphsen (SLAC)
      • 3
        Open issues on linac design
        Speaker: Chris Adolphsen (SLAC)
        Slides
      • 4
        Beam dynamics
        Slides
        • a) Lattice configuration, Quadrupole/BPM location/periodicity, alignment, and tune-ability
          Speakers: Kaoru Yokoya (KEK), Dr Kiyoshi Kubo (KEK)
        • b) Bunch spacing limit
          Speaker: Benno List (DESY)
      • 5
        Availability and reserved tunnel-extension
        3 % longer (400 m) tunnel empty or equipped?
        Speaker: Dr Eckhard Elsen (DESY)
        Slides
      • 6
        Progress and status of ML CFS design and requests for ML and SCRF
        Speaker: Mr Victor Kuchler (Fermilab)
        Slides
      • 7
        Comments from Cost Group
        Speaker: Gerald Dugan (Cornell University)
      • 8
        Discussion
    • 12:15 PM
      Lunch
    • HLRF/LLRF
      • 9
        KCS/RDR-unit RF system configuration in Low-Power Baseline and High-Power Upgrade
        Speakers: Dr Christopher Nantista (SLAC), Dr Shigeki Fukuda (KEK)
        HLRF-KCS
        HLRF-RDR-like
      • 10
        LLRF overhead w/gradient spread in Low- and High-Power schemes
        Speaker: Dr Shin Michizono (KEK)
        Slides
      • 11
        Marx generator
        Speaker: Chris Adolphsen (SLAC)
        Slides
      • 12
        Tunable power distribution system
        Speaker: Chris Nantista (SLAC)
      • 13
        AC power and cooling requirements
        Speakers: Chris Nantista (SLAC), Shigeki Fukuda (KEK)
      • 14
        Comments from Cost Group
        Speaker: Gerald Dugan (Cornell University)
      • 15
        Discussion
    • 3:15 PM
      Coffee/Tea
    • Cryomodule Fabrication and Assembly
      Convener: Paolo Pierini (INFN Milano LASA)
      • 16
        Cryomodule envelope/interface
        Speaker: Paolo Pierini (INFN Milano LASA)
        Slides
      • 17
        CM-string configuration matched to TDR RF-unit
      • 18
        Simplification of 5K radiation-shield, accessibility, flow reversal or not
      • 19
        Split-yoke and conduction-cooled SC quadrupoles
        Speakers: Akira Yamamoto, Vladimir Kashikhin (Fermilab)
        Slides
      • 20
        Alignment scheme with EXFEL approach
      • 21
        Comments from Cost group
        Speaker: Gerald Dugan (Cornell University)
      • 22
        Discussion
  • Friday, January 20
    • CAD EDMS ad hoc meeting
      Convener: Dr Benno List (University of Hamburg)
      slides
    • Cryogenics
      Convener: Mr Tom Peterson (FNAL)
      • 23
        Locations, numbers of cryogenics plants, and a limit for tilting ML tunnel
        Speaker: Mr Tom Peterson (FNAL)
        Slides
      • 24
        Capacity optimization and heat balance with crymodule heat-load
      • 25
        Comments from Cost Group
        Speaker: Gerald Dugan (Cornell University)
      • 26
        Discussion
    • 9:40 AM
      Coffee/Tea
    • Cavity Integration, and Cavity/CM performance tests
      Convener: Hitoshi Hayano (KEK)
      • 27
        Cavity envelope/interface
      • 28
        Tuner, coupler, beam-flange, magnetic shield, and LHe tank
        Slides
      • 29
        Cavity delivery condition with LHe-tank
      • 30
        Power coupler conditioning strategy
      • 31
        Cavity and Cryomodule performance test: What and which fraction to be tested?
        Slides
      • 32
        Comments from Cost Group
        Speaker: Gerald Dugan (Cornell University)
      • 33
        Discussion
        Pre-closing Remarks
    • 12:15 PM
      Lunch
    • Cavity gradient
      Convener: Dr Rongli Geng (Jefferson Lab)
      • 34
        Cavity production and process recipe
        Speaker: Dr Rongli Geng (Jefferson Lab)
        Slides
      • 35
        Define production yield including new parameters such as radiation
        Speaker:
        Slides
      • 36
        Data accumulation of gradient degradation after assembly into the cryomodule
        Speaker: Nick Walker (DESY)
        Slides
      • 37
        How to overcome the gradient degradation in operation?
        Speaker: Akira Yamamoto (KEK)
      • 38
        Discussion
    • 3:00 PM
      Coffee/Tea
    • General Discussions and conclusion
      Convener: Nicholas Walker (DESY)
      • 39
        Current status for SCRF costing overview
        Speaker: Gerald Dugan (Cornell University)
      • 40
        Summary of discussions and decisions
        Speaker: Prof. Akira Yamamoto (KEK)
        Slides
      • 41
        TDR SCRF outline and writing task
        Speaker: Mr John Carwardine (Argonne)
        Slides
      • 42
        Closing remarks
        Speakers: Dr Barry Barish (GDE), Dr Marc Ross (FNAL)