S4 expanded meeting -- Interaction Region

Monday 5 Mar 2007, 06:00 → 08:00 GMT

Phone meeting of S4 task force focused on EDR planning. This meeting is focused on interaction region work, magnets, stability and integration, and several BNL colleagues were invited to participate in the meeting.
Connection: Call: 510-665-5437 When: March 05, 2007, 06:00 AM localtime (SLAC) Meeting ID: 8285

1 Meeting description & invitation

-----Original Message----- From: Seryi, Andrei Sent: Tuesday, February 27, 2007 11:59 AM To: Seryi, Andrei; '?? ?'; 'Damerell, CJS (Chris)'; Ross, Marc; 'Bill Willis'; 'Angal-Kalinin, D (Deepa)'; 'Hitoshi Hayano'; 'Parker, Brett'; 'Jain, Animesh'; 'Anerella, Michael D' Subject: expanded S4 mtg, Monday March 5th, 6:00am PST Dear Colleagues, The GDE S4 task force is planning a series of expanded meetings, to plan for EDR and beyond. You are invited to participate in the meeting on March 5, which will be focused on the interaction region work, magnets, stability and integration. Connection info is below. Tentative materials for discussion, and to set the framework, are attached. Please suggest if any other colleagues should be also invited. At the meeting, please prepare to address the questions raised in the attached file. Also please evaluate what is the impact, in terms of EDR planning, of the recent change to single push-pull IR and whether there is a need for adjustment of plans or of distribution of resources. As this planning is a new territory, we would appreciate your feedback on any of the relevant issues. A MeetingPlace conference has been scheduled. Call: 510-665-5437 When: March 05, 2007, 06:00 AM localtime (SLAC) Meeting ID: 8285 Best regards Andrei for S4 task force

2 Materials from S4 for discussion

Slides series_of_S4_meetings.pdf series_of_S4_meetings.ppt

3 IR work and stability studies, Animesh Jain et al.

Slides 20070305_TeleConf_Jain_V2.pdf 20070305_TeleConf_Jain_V2.ppt

4 IR & FD work -- present 2007-2010 plan, Brett Parker, Mike Anerella, et al.

Slides linearcollider_BP_RnD_Goals_030107.pdf linearcollider_BP_RnD_Goals_030107.ppt

5 Notes and Summary of the meeting

March 5, 2007 S4 expanded meeting. Focused on EDR IR work. Presence: Chris Damerell + Mark Ross + Hitoshi Hayano - (in DESY) Deepa Angal-Kalinin + Andrei Seryi + Hitoshi Yamamoto + BNL colleagues: Mike Anerella Animesh Jain Brett Parker Brief summary (DRAFT): Requirements for FD stability is about 50-100nm (with intra-train feedback). This was not demonstrated so far, and thus cannot be guaranteed now even though that there is a belief that it will not be eventually a show stopper. The soonest information may be coming in 2008, from a mechanical mock-up. With present budget, demonstration of stability of engineering prototype is pushed out to the end of 2010. Scope of the design work has increased, due to single IR decision. A more clearly defined plan is needed, for ourselves as well as for review committees and funding authorities. Although it may be difficult to quantify, would need to estimate where we are right now, in terms of performance & stability, and what improvements are needed (can we do this assessment now, before 2008?). How one can benefit from studies happening elsewhere, e.g. at ATF2? Could sources of problems be more cleanly defined and studied in most cost effected way? ... to be continued ...