MUCOOL Minutes
	Friday, 1st October 1999

 Scribe: Dan Kaplan

1. Jim Norem reported on the status of his x-ray measurements for a 1.3
GHz RF cavity at Argonne.  The cavity has been operated at gradients as
high as 109 MV/m on axis and 142 MV/m on the "nosecone."  They can measure
the photon energy spectrum (using TLDs) at 10, 60, 200, and 1000 keV as
well as time spectra with a PMT.  Data-taking is in progress and no
definitive results are available yet.

2. Yasuo Fukui reported on his ICOOL 1.96 simulations of the "precooling"
stages for a neutrino factory.  The total length is 352.5 m.  He started
from the configuration proposed by Bob and then adjusted the parameters to
improve performance.  In the phase rotation he uses 60, 30, and 45 MHz RF
at gradients of 8, 5, and 7 MV/m respectively.  Following that is a first
stage of minicooling using 1.5m of LH2, then 60m of drift, then 90m of
induction LINAC, then a 2nd minicooling with 2m of LH2.  Following that is
a buncher with 70m of RF at 175 MHz, which produces a train of
"minibunches" having about 100% energy spread.  With a cut at KE < 100 MeV
he gets 0.18 muons/proton emerging out the end.  He will provide a beam
file for input to Kim's cooling-channel simulation.  He does not expect
Kim's acceptance to be good since Kim's channel is designed for a 5%
energy spread.  Yasuo has a draft MuCool note which will shortly be posted
to the web.

3. Al Moretti gave a status report on Lab G.  He is waiting for
cooling-water and electrical installations, which could be completed in a
few weeks, at which point modulator tests could begin with a dummy tube.
The LBNL solenoid tests have been held up due to a year-end cash-flow
problem.  We now hope to receive the solenoid around January 1.  Machining
is in progress on an Al model of the 800MHz cavity.  Unless our priority
at Fermilab is substantially upgraded it is likely to be June before we
get to test a Cu cavity in Lab G.

4. Lucien Cremaldi gave a status report on the Cherenkov particle ID.  
They are building a prototype and hope to be able to beam test it at
Fermilab if there is a run extension.  Otherwise it will be tested with
cosmic rays.  They expect to get 40, 20, and 0 photoelectrons for
electrons, muons, pions respectively.  Since the C6F14 radiator liquid
leaks through plastic they need to design an appropriate container - maybe
an aluminum can with a quartz exit window.