A Proposal for a 50 T HTS Solenoid. Steve Kahn Muons Inc. September 26, 2006. Alternating Solenoid Lattice for Cooling. We plan to use high field solenoid magnets in the near final stages of cooling. The need for a high field can be seen by examining the formula for equilibrium emittance:
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A Proposal for a 50 T HTS Solenoid
Steve Kahn
Muons Inc.
September 26, 2006
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
From R. Palmer
From R. Palmer
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
We have chosen to use Bi2223 since it is available as a reinforced tape from AMSC
The conductor can carry significant current at very high fields. NbTi and Nb3Sn can not.
S. Kahn -- 50 T HTS Solenoid
High Strength Tape used for calculations
New and Improved High Strength Plus Tape
S. Kahn -- 50 T HTS Solenoid
High Current Tape
High Compression Tape
High Strength Tape
React and Wind
S. Kahn -- 50 T HTS Solenoid
Strain Degradation at 0.4%
Wind and React
Ultimate Strength~130 MPa
Young’s Modulus
E~51-63 GPa
S. Kahn -- 50 T HTS Solenoid
The parallel field orientation is the most relevant for a solenoid magnet.
Previous calculations had used the perpendicular field. (We can view this not as a mistake, but as a contingency).
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
Field
Quadratic
Linear
30
1.5378
1.5454
40
1.3091
1.3384
50
1.0685
1.1314
60
0.816
0.9244
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
Used only high field part of data to determine Bc20
S. Kahn -- 50 T HTS Solenoid
T1
Ts
T0
Lorentz Number
S. Kahn -- 50 T HTS Solenoid
Power Supply
RSW
RPR
L
REXT
Solenoid Magnet
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid
S. Kahn -- 50 T HTS Solenoid