Note: No formal presentations are planned. The committee members should go through the document(s) provided and send questions/comments to the Chair and other members (cc:pushpa@fnal.gov) as soon as possible. The committee can ask supporting material to be presented at the meeting for clarification of specific issues.
Scope and Technical review of the 2.5 MHz acceleration project in the MI
Decide whether to pursue the project, and assess the scope of the project
Ralph Pasquinelli (Chair)
Mike Church
Don Edwards
Dave McGinnis
Claudio Rivetta
The 2.5 MHz acceleration through transition in the Main Injector (MI) followed by a bunch rotation at a front porch at 27 GeV was proposed in the Recycler Technical Design Report as an alternative scheme for pbar coalescing. This new scheme is expected to reduce the longitudinal emittance blow-up to the order of 20% compared with the 70-100% blow-up with the current pbar coalescing.
Recently, with the implementation of a 2.5 MHz rpos feedback loop, beam was accelerated through transition without beam loss allowing the study and tuning of the whole procedure with both one and four 2.5 MHz bunches and different longitudinal emittances and intensities.
The committee is asked to review and comment on
Finally, the committee is asked to assess the scope of the work required.
The committee should provide a preliminary assessment at the closeout meeting following the review meeting. A final written report should be produced within a week of the review.
Ioanis Kourbanis - MI Dept. Head
Chandrashekhara Bhat - Project Manager
Vincent Wu -
Brian Chase, Keith Meisner - LLRF
Joe Dey - HLRF