1. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/061 Philip Burrows John Adams Institute Oxford University LCABD 2007-10 ATF / ATF2 ESA Miscellaneous FONT Planning Issues

2. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/062 LC-ABD1 Structure PPARC OSC G. Blair (Principal Investigator) P. Burrows (Project Manager) WP2 G. Blair WP1 D. Angal Kalinin Task 1.1 D. Angal Kalinin Task 5.1 J. Clarke Advisory Comm. WP3 A. Reichold WP4 P. Burrows WP5 M. Poole Task 1.2 J.Jones/G.White Task 4.1 P. Burrows Task 2.1 G. Blair Task 2.2 G.Doucas/A.Gillespie Task 2.3 I.Bailey Task 4.2 S. Boogert Task 5.2 A. Dexter Task 5.3 N. Watson Task 3.1 A. Reichold Task 5.4 R.Appleby, C.Densham

3. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/063 LC-ABD2 Structure PPARC OSC Principal Investigator: Blair Project Manager: Burrows Project Coordinator: TBD Industry Liaison: TBD WP1 Clarke Tasks Advisory Comm. WP2 Wolski WP3 Jones WP4 Angal Kalinin WP5 McIntosh WP6 Reichold WP7 Burrows WP8 Blair WP9 Boogert WP10 Densham GDE Tasks

4. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/064 FONT ‘new’ resources 2007-10 7. Beam FB New Staff (inc ind. + est.)1066 Equipment80 Consumables191 Travel236 Total New1573

5. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/065 People Oxford + Daresbury: Philip Burrows Glenn Christian Hamid Dabiri Khah Tony Hartin Alexander Kalinin Javier Resta Lopez Colin Perry Graduate students: Christine Clarke (3) Christina Swinson (2) Ben Constance (1) Robert Apsimon (0)

6. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/066 WP7: Main Goals 1) Prototype ILC intra-train beam feedback system + contribute engineered design to EDR 2) Study of EM backgrounds and optimisation of IP FB system design against them 3) Design + simulation of integrated global alignment, FB + luminosity tuning strategy for EDR

7. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/067 WP7: Main Goals 1) Prototype ILC intra-train beam feedback system + contribute engineered design to EDR VERY HIGH 2) Study of EM backgrounds and optimisation of IP FB system design against themHIGH/MODERATE 3) Design + simulation of integrated global alignment, FB + luminosity tuning strategy for EDR MODERATE – ‘ESSENTIAL’

8. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/068 RDR completed Next phase – EDR – being planned by GDE now - Likely to be a BDS ‘work package’ dominated by SLAC + UK Aim for EDR completion in 2010 + hope for green light from (US) Govt. so project can start Details will be announced at LCWS Hamburg June 07 The GDE R&D board was asked by PPARC to comment on LCABD proposal – GDE aims to exert tighter control on national R&D spending We will not be allowed to work on things that are not directly ILC relevant, and agreed by GDE! ILC status

9. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/069 Until mid 2008 (?): ATF continues as now Late 2008? Reconfigure ATF and connect to ATF2 Early 2009?: ATF2 commissioning ATF2 goals: 1)Achieve 35nm spot at ATF2 FF (2009??) 2)Stabilise spot to nm level (2010??) Comments: This schedule already slipped by 1 year; Yen tight in Japan Took FFTB several years to achieve 70nm spots … ATF/ATF2 schedule + goals

10. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/0610 2 or 3 bunches with 300 or 150ns spacing until late 2008 Fast kicker development work will proceed in parallel with ATF/ATF2 – completely uncorrelated with ATF2 goals -IMHO the fast extraction kicker could take longer to develop By 2009?? or 2010?? might get 20-60 bunches w. 300ns spacing ATF/ATF2 bunch structure

11. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/0611 Goal 1: Micron-level beam stability needed at ATF2 FF entrance Goal 2: Sub-micron stability needed -> won’t get either w/o (intra-train) beam FB + FF (depends on bunch-bunch jitter: this is unlikely to be better with the fast kicker extraction from DR!) Also for goal 2: they imagine IP FB using Honda IPBPM w. nm resolution (nice, but not directly relevant for ILC FB!) FONT at ATF/ATF2

12. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/0612 2007/8: get FONT4 working properly (gain, delay-loop …) - operational improvements design upstream FONT system for ATF2: what resolution to aim for? 1 micron – striplines vs. sub-micron cavities? beamline layout angle also? x also? feed-forward? 2009: Commission ATF2 FONT system for goal 1/2 2010: 20-60 bunches at 300ns? IP FB w nm BPM? add ‘luminosity’ signal input for fast scanning? Default ATF/ATF2 plan

13. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/0613 Schematic ATF2 feedback layout: 1 KickerBPM e- BPM Kicker x’y’xy

14. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/0614 Schematic ATF2 feedback layout: 2 combined x-y kickers KickerBPM e- BPM Kicker x’y’xy

15. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/0615 Schematic ATF2 feedforward layout: 1 KickerBPM e- BPM Kicker Damping Ring x’y’xy yx x’

16. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/0616 Schematic ATF2 feedforward layout: 2 combined x-y kickers KickerBPM e- BPM Kicker x’y’xy Damping Ring yx y’x’

17. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/0617 FONT bench test system Manufacture synchronised ILC bunch-train, clocks, and trigger Develop algorithms and program FPGA Close loop (Include amplifier and dummy kicker also!) Trigger Bunch 2.16 MHzDiagnostic

18. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/0618 Only guaranteed next run is July 2007 Fighting for runs in 2008 – uphill battle - probably get some beamtime - long-term ESA looks dodgy Longer term: default to use SABER and/or LCLS beam -> ESA Need to decide: what to do in July 2007 run? any further requirements for beam for EM studies? End Station A

19. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/0619 Apart from Tony’s EM simulations these have been on the back-burner since Glen left Need to get plugged in to ILC LET studies for EDR - continue/improve intra-train FB simulations - integrate intra-train and 5Hz feedbacks - integrate BDS feedbacks - understand relationship with upstream FBs and FFs - global FB, tuning strategy, alignment … Beam simulations

20. P.N. Burrows ATF2 Project Meeting, KEK, 18/12/0620 FONT www site! needs updating generally meetings pages/archive repository for PAC/EPAC papers Journal publications! Miscellaneous