Table 3 Estimated heat loads on the HTS magnets system and corresponding optimization strategies.
Thermal load (W) | Current leads and cryocooler undetached | Current leads and cryocooler detached | ||
|---|---|---|---|---|
Before opt. | After opt. | Opt. strategy | ||
Radiative heat | 5.24 | 2.62 | Radiation screens | 2.62 |
Residual air | 0.44 | 0.44 | N/A | 0.44 |
Current leads | 39.94 | 7.96 | LN2 thermal anchor | 0 |
Access tubes | 4.50 | 3.40 | Bellows | 3.40 |
Epoxy resin G10 bars | 10.27 | 4.43 | Hollow structure | 4.43 |
Cryocooler (cold head) | 8.00 | 8.00 | N/A | 0 |
HTS magnets | 2.16 | 2.16 | N/A | 0 |
PCS | 17.20 | 17.20 | N/A | 0 |
TOTAL | 87.75 | 46.21 | 10.89 | |