Working subgroups Lattices IR Mb ms kb ss

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Working sub-groups • Lattices & IR: – Mb, ms, kb, ss, pp, io, Panta

Working sub-groups • Lattices & IR: – Mb, ms, kb, ss, pp, io, Panta • RF& Feedbacks &Collective effects: – SN, AD, OB, MT, KB, CV, TD, MBo • Injection system: – JS, RB, MP, SG • Depolarization: – Uw, cr, ab We should decide which lattice we want to explore first (or last)

Lattices summary • V 12: – CDR 2 version, 1259 m, layout closed –

Lattices summary • V 12: – CDR 2 version, 1259 m, layout closed – Old FF, we also have the New (V 12 A) – No space for undulators – Injection sections OK – IR design complies LER polarization (with some compromise on spin orientation at the IP) – Dynamic aperture not optimized – Collective effects and RF OK

 • V 13 (aka V 12_mod): – Partially new arc layout, 1263 m,

• V 13 (aka V 12_mod): – Partially new arc layout, 1263 m, layout closed – Old FF – No space for undulators – Injection sections OK – IR design complies LER polarization (with some compromise on spin orientation at the IP) – Dynamic aperture not optimized – Collective effects probably same

 • V 14: – Short layout, 1163 m, layout closed – New FF

• V 14: – Short layout, 1163 m, layout closed – New FF – No space for undulators – Injection sections OK – IR design complies LER polarization ? Probably not – Dynamic aperture not optimized – Beam parameters – Collective effects to evaluate (ex. Touschek lifetime)

To do list for V 12 (CDR 2) • • • Dynamic aperture optimization

To do list for V 12 (CDR 2) • • • Dynamic aperture optimization (PP, AC) Synchrotron radiation lines (WW) Undulator arc cell design (PR, YN, SS) Undulator in straights (PR, YN, SS) Cost estimate (JS) PP=Piminov, AC=Chancé, WW=Wittmer, YN=Nosochkov, SS=Syniatkin, PR=Raimondi, JS=Seeman, MB=Biagini, MB 0=Boscolo, TD=Demma, AD=Drago, SN=Novokhatski, UW=Wienands, CR=Rimbault

To do list for V 13 (V 12_mod) • • • LER lattice (PR,

To do list for V 13 (V 12_mod) • • • LER lattice (PR, SS) Dynamic aperture optimization (PP, AC) Parameter list for V 13 (MB) List of magnets (all properties) (SS, MB) Depolarization (CR, UW) Collective effects (TD, MBo, SN, AD, …) Synchrotron radiation lines (WW) Undulator arc cell design (PR, YN, SS) Undulator in straights (PR, YN, SS) Cost estimate (JS)

To do list for V 14 (short) • • • LER lattice (PR, SS)

To do list for V 14 (short) • • • LER lattice (PR, SS) Dynamic aperture optimization (PP, AC) Parameter list for V 14 (MB) RF parameters (SN) List of magnets (all properties) (SS, MB) Power profile along the lattice (UW) Collective effects (TD, MBo, SN, AD, …) Synchrotron radiation lines (WW) Undulator arc cell design (PR, YN, SS) Undulator in straights (PR, YN, SS) Cost estimate (JS)

To do list for Injection System • • Final scheme Length of total system

To do list for Injection System • • Final scheme Length of total system Spin rotator Polarized, low ex, high current, gun ? e- gun Positron converter Diagnostics