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

Name: ILC ML & SCRF Baseline Technical Review (ML & SCRF BTR)
Start: 2012-01-19T09:00:00+09:00
End: 2012-01-20T18:00:00+09:00
Location: KEK Tsukuba

Jan 19, 2012, 9:00 AM → Jan 20, 2012, 6:00 PM 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).

Participants

44 View full list

Thu, January 19
- Thu, Jan 19
- Fri, Jan 20
- 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
Fri, January 20
- Thu, Jan 19
- Fri, Jan 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)