Superconducting magnet in a cryostat, persistent mode
G-10 support straps
R
cond
=
50 K/W
q
=
5.2 W
Instrumentation leads
R
cond
=
179 K/W
Winding-to-bath coupling
R
cond
=
6 K/W
Suspension strut (no heat path)
Multi-layer insulation
q
mli
=
30 W
Cryocooler first stage
q
cc
=
35 W
Persistent-joint dissipation
P
j
=
0.05 W
Outer vessel (room)
T
room
=
300 K
Radiation shield
T
sh
=
40 K
Liquid helium bath
T
He
=
4.2 K
Magnet winding
T
w
=
4.5 K
Room-temperature mount
T
mnt
=
300 K