CFS-ADI Joint Meeting

University of Tokyo (4/8: ITO Center, 4/9-10: Phys. Bldg-1)

University of Tokyo (4/8: ITO Center, 4/9-10: Phys. Bldg-1)

TThis meeting will examine the scope of the pre-project CFS work, the schedule, and necessary resources. The detector hall concept at the proposed site, and the impact of energy phasing will also be addressed. The pre-project CFS timeline will likely drive many aspects of the accelerator design work in the next few years thus it is important to understand these constraints. In order to derive a site dependent ILC design and address long lead-time CFS activities then we need to assess what design information needs to be available to the CFS group and when. The ILC technical design in the TDR relied on a generic site description which is inadequate to proceed much further in the site specific design. There are 4 sessions per day and should last ~90 minutes each. Talks should be ~45 minutes (30 mins if 2 talks in that session) which leaves a similar amount of time for discussions. The Chairs will work with the speakers to ensure the talks address the topics. As we generally only have one named speaker per session it will be important that their presentations “provoke discussion”. One assumes this will be achieved by people presenting some minimum list of open issues and questions that we need to discuss. The session annotations hopefully give some sense of this. Please keep your attention for the meeting places to be changed (see the pdf file attached): April 8: Ito International Research Center April 9-10: ICEPP meeting room, Physics Building-1, 10th Floor
    • Kick-off

      The first session will outline the meeting goals as well as the status of the CFS and ADI work to date.

      Convener: Akira Yamamoto (KEK)
      • 1
        Speaker: Mike Harrison (Brookhaven National Lab)
      • 2
        CFS Status
        Speakers: Mr Victor Kuchler (Fermilab) , Dr atsushi Enomoto (KEK)
      • 3
        ADI Status
        Speaker: Nicholas Walker (DESY)
    • CFS pre-project activities

      The CFS pre-project work scope will determine the readiness for a construction project hence we need to understand the elements of the work scope and their individual schedules. Can any items be delayed with compromising the effort ? Can the 5-year estimate for this work be shortened in any way ? Since non trivial funding will be needed to complete this work then this implies some kind of budget before the anticipated GO-NOGO decision in 2016. How much money is needed and when, if we try and minimise a pre-project request.

      Convener: Victor Kuchler (Fermilab)
      • 4
        Pre-project scope of work (long & medium term plan), Timeline, Required resources, Profile
        Speaker: MASANOBU MIYAHARA (KEK)
      • 5
    • ADI Support of CFS

      There remains” loose ends” in several systems in regard to CFS requirements. Ascertaining these issues will help determine the systems groups work scope and remaining CFS uncertainty.

      Convener: Nikolay Solyak (FNAL)
      • 6
        Issues pertaining to CFS for each system
        Speaker: Nicholas Walker (DESY)
      • 7
    • Technology Support & CFS Impact

      This session will examine issues related to the tunnel and access-tunnel X-sections and input penetration layout. Is the generic tunnel layout including accessibility and safety now stable?

      Convener: Hitoshi Hayano (KEK)
    • MDI (1)

      Do we understand the Detector design well enough to determine the CFS Detector Hall requirements ? Is there risk that significant Detector changes could still remain ? Can we identify the major technical cost drivers arising from the Detectors in terms of the CFS, including comparisons of effects with vertical shaft and horizontal access?

      Convener: Ewan Paterson (SLAC)
      • 10
        Detector Requirements both SiD and ILD minimum needs
        Speaker: Karsten Buesser (DESY)
      • 11
        - Discussion
    • MDI (2)

      Can we conclude the horizontal – vertical access debate ( at least conceptually) ? Hybrid model – positives/negatives. When do we need to resolve this? What needs to be done in the near term to facilitate this decision?

      Convener: Dr Yasuchika Yamamoto (KEK)
      • 12
        Interaction Region Solutions including Hybrid, Detector Hall impact on Overall Construction schedule
        Speaker: Yoshinobu Nishimoto (JPower)
      • 13
        Arup Study Status
        Speaker: John Andrew Osborne (CERN)
      • 14
    • Energy Phasing

      The proposal to implement the project in stages has implications for the CFS approach and scope. What are these features (transfer lines, cryogenics, installation, storage, test facilities ……)? There may be a request for energies in excess of 500 GeV as part of the project baseline. How do we approach this?

      Convener: Nicholas Walker (DESY)
      • 15
        General Scheme, parameters, CFS impact
        Speaker: Benno List (DESY)
      • 16
    • Site Infrastructure

      Further information will be required soon on the outside-the-TDR site needs (power, water, roads etc….). How well do we know these requirements ? Are there any significant energy efficiency opportunities ? Power reduction on demand ?

      Convener: Nobuhiro Terunuma (KEK)
    • CFS near term & Required ADI input

      The CFS pre-project work scope will need to have aspects of the accelerator design to be finalised at certain points in the timeline. We need to define when this ADI input is needed and what aspects needed to be defined. What near-term aspects of the CFS work will need to be addressed and what resources will be available.

      Convener: Atsushi Enomoto (KEK)
      • 20
        6-12 month activities, required ADI information
        Speaker: MASANOBU MIYAHARA (KEK)
      • 21
    • Wrap-Up

      We will use this session to document the conclusions and map out a plan for the next few years: the LCC phase. We will also discuss how we may well prepare for the AWLC14, to be held at Fermilab in May.

      Convener: Brian Foster (University of Oxford)
    • 22
      CFS Face to Face
    • 23
      Technical Board Face to Face