From: "Terry Goldman" To: Cc: "Bill Louis" ; Subject: idea for FNAL-HEP program Steering Committee consideration Date: Wednesday, June 06, 2007 7:04 PM Converting the Tevatron to a high energy muon storage ring for the production of neutrino beams The Steering group, Young-Kee Kim, I understand from speaking with Bill Louis that you are leading a Steering Group to develop a strategic roadmap for the accelerator-based HEP physics program at Fermilab that provides discovery opportunities over a possibly extended period. I have a suggestion that will produce excellent neutrino beams such as have been suggested before and which allows for the possibility of getting to a muon collider in the longer run. The idea is to convert the Tevatron into a muon factory: This requires 4 sharp bends into short arcs that lead to straight sections which bypass two opposing arcs of the Tevatron ring, leaving only two short circular arcs between the pairs of sharp bends. The resulting racetrack shape allows for muon decays to produce neutrino beams if a muon collector/injector system is also created. This should be doable in a cost-effective way that would still leave the Tevatron available for use if needed. The straight sections should be relatively cheap needing only quadrupoles and vacuum, although the cost is a lower maximum energy for the muons than for protons. This only occurred to me today, but I am sending it without delay in view of your meeting schedule. There is, of course, a lot of detail that needs to be worked out, but I wanted to get the idea into the hopper. Terry Goldman, APS Fellow T-16, Nuclear Physics Los Alamos National Laboratory E-mail: t.goldman@post.harvard.edu Phone: 505-667-3244 FAX: 505-667-1931 Messages: 505-667-4835 ___________________________________________ ["They are men like the rest of us" {but} "after [seeing Maxwell, I felt somewhat discouraged, for [here I met a mind whose superiority was almost [oppressive." -- H.A. Rowland (1st President, APS)