Agenda for MuCoolng meeting
at April 23.
1. HECA D.Kaplan
2. 15T Lattice D. Kaplan
3. Alter. Solenoid Design. Ed Black
4. Low Pressure TPC. K. McDonald
5. Low Energy Cooling Jim Norem

1. Dan Kaplan report about his effort to organize consortium of
Universities from State
of Illinois to work for Muon Collider R@D program.  There are
 HECA (High Education Cooperation Act) which can allow 
Universities to have money for their research from State
of Illinois.  First request o the office of governor of IL had positive
Replay. Legislation of IL are ready to consider MuColing project
 as a High Level Illinois priority science project.
IIT will put soon proposal (which will include consortium of 
several IL Universities (UC, NU, NIU, IIT).If this idea will succeed, 
it will give soon reasonably large amount 
of money to MuCooling project and new people on board.
Our today goal is to help faculty from Universities, interesting in 
HECA project, to identify appropriate task inside our project.

2. D.Kaplan got code from Bob Palmer. D.Kaplan started used this
 Palmer's code for to simulate version of 15 Tesla alt. Solenoid 
lattice with 1,5 meters long (instead of 2 meter in base version). 
One of the main problems, which face D.K., is  that density of 
current in coils reached value 150A/mm2 (instead of 50A/mm2 for 
2 meter section). 
Is a 150A/mm2 practically achievable?
D.Kaplan's goal to design coils configuration for to have b-function flat
at the center of solenoid and keep current not more 
than 75A/mm2.
During discussion came some suggestion try to put steel 
somewhere around coils to improve situation.

But still there are conflict between position of coil in space and 
real-estate for other equipment (RF feedthrou, etc).

Future test at LBNL with new prototypes maybe can answer on 
question: how is practical to rely on coil swith 100A/mm2 current 
density.
 D.Kaplan goal is to find configuration of coils which will satisfy 
Ed Black and still be practical. D.K. is planing to do those before
St.Croix meeting.

3. Ed Black explained  about status of mechanical design of 15T solenoid
cooling section.
Today length of section is 1.547m. Ed is trying accumulate  of new 
ideas coming form Dan Kaplan. 
E.B. also make update of development of Liq.H absorber. Main 
goal is to design manifold which can provide best exchange of heat 
between gas and liquid at Liq.H absorber.

E.B. told that there are cost estimation for  2 manifold for whole 
assembly for Liq. H absorber ($38K).

4. K.McDonald and Erik (?) made short update of TPC R&D 
program update.
Princeton team made some cost estimation of 
electronics(Amplif.+build ADC) for TPC readout. Cost of 1 
channel is $14-$24.
They put HV on their TPC prototype. After playing around with 1 
channel of TPC, they are planing to put TPC prototype inside 
magnetic field.
Princeton team expected to have some result to St.Croix meeting.
Princeton also building test chamber for Fast Timing Cerenkov 
Detector project.

5. Jim Norem briefly described his ideas about optimization of 
muon energy for Muon Cooling. He showed 2 pages table, where 
he estimate cost of cooling channel for muons with momentum 
120MeV/c and  120MeV/c. We will need low magnetic filed for to 
cool muon with low momentum. And as a result Jim estimate that 
cooling channel for  120MeV/c muon cost 2 times less than for 
200MeV/c muons.