Minutes of the Muon Cooling meeting.
                   Friday 5th Feb. 1999

Attended: S Geer, P. Lebrun, P. Spentzouris, N. Holtkamp, A.Tollestrup,
D.Kaplan, D. Neuffer, V.Balbekov, E.Black, Yu. Pischalnikov, J. Norem



1. A0 status.

a). N.Holtkamp described status of hardware:
    klistron was damaged during transportation a long time ago, and needs 
    to be repaired; there are 4 Be window (with 150 mm thickness) for 
    testing, from visual control  Be windows looks Okay;
    N.Holtkamp emphasized that need real support from Beam Division for all
    those effort (need engineer or technician to put together Gun and rest of
    system).

b). John Corlett report status of work at LBNL. 
    John made visual control of Be windows, which received LBNL. They looks
    not so nice as expected. Missisipi Un. Machine Shop finished of body of 
    Low power cavity. J.C. expect that 2 week from now  low power cavity   
    will be finished.  Discussion about how to accelerate completion of low 
    power cavity at Miss. Un. Need to have special meeting between responsible 
    parties from Miss. and LBNL.
  
2. Summary of the Cooling/Optic theory  for ionization cooling meeting.
   P.Lebrun presented summary of Theory meeting from February 1, 1999.
   During last "theory" meeting Panagiotis Spentzouris gave two short
   presentations. The first was on status of two Li-lens system, matched 
   to  accept the beam generated by the 15T Alternate solenoidal channel, 
   the system characterazed by 10 Tesla surface field, 1 m. long, 1cm radius 
   Li lenses. The second presentation focused on confirming the result presented 
   last week by Valery Balbekov. At least some of his results, as the wedge 
   sub-system was still being designed. In any event, Panagiotis showed good  
   agreement with Valery's calculation. The particle loss (5%) and transverse 
   cooling factor were in good agreement  with those presented by Valery last week.
   Some improvements of these simulation were proposed and discussed.
   Next meeting, Feb. 8th, Dave Carey will present  his work on beam optics.

3. Alternate Solenoidal Study.
   Dan Kaplan presented results of his simulation of   Alternate solenoidal
   channel. Discussion concentrated on issues of "big jump" of longitudinal 
   emittance in the region of first four cooling stages.  But this jump can be 
   explain justbecause simulation start from ideal and narrow beam.
   Also there was discussion about how to correct calculate longitudinal
   emittance and 6D. Do we need to remove from distribution muons, which will 
   be lost during next (future) several stages? Dan K. pointed that from his 
   simulation following that increasing of magnetic field along cooling channel 
   give us better cooling factor than using stages with constant magnetic fields.
   Dan used for his simulation magnetic field up to 25T.  But  Do we are
   planing to use solenoid with fields more than 15T?

4. Mucooling channel simulation.
   Steve Kahn presented his last result concerned simulation of MuCooling
   channels including magnetic fields maps. He is continuing to understand 
   tracking in a bent solenoid channel.


5. N.Holtkamp presented latest development in the ideas on bunched beam 
   layout at Booster.   Nortbert showed cartoon with layout of target station
   for muon  beam.  He mentioned that now Nikolai Mokhov has some strawmen for 
   calculation of shielding requirements  for proposed target station.
   Nortbert presented scheme of target with conventional magnet for target. But 
   there  were several suggestion to study feasibility of using superconducting
   magnet for target and also closely  study of MINOS and Boone targetry proposals.