Spectrometer Design Questions

• What is maximum field that 29D36 can be run at? This impacts on final horizontal size of detectors (need +/-80 cm wide for 1.5 Tm, but only +/-60 cm for 2.0 Tm). Higher filed makes small resolution improvement.
• What should drift between 29D36 and LASS dipole be? Proposal has 0 cm which seems impractical. A drift of 50 cm results in slight acceptance loss and slight resolution improvement.
• Studies show that alumina should start as close to target as possible for best resolution. But some small gap is needed: how big should this be? How long does alumina need to be? Shorter length improves resolution, but increases singles rates.
• How much integral Bdl can we achieve in LASS dipole? Who will do the detailed design of the shim pieces (gap in front can be smaller than gap at back)?
• Is detailed field mapping needed?
• Should the original LASS power supply be re-furbished? This allows more flexibility in commisioning and scheduling.