Helium Liquefaction System
Helium liquefier system was first installed in 1976. CTi Helium Liquefier (50L/h) was introduced for 17.5T superconducting magnet and liquid helium supply for the magnet operation.
The system was renewed to SULZER : TCF200 liquefier system (250L/h) in 1988, then replaced in sakura site in 1955. This system has supplied liquid helium 120,000L/year for magnet cooling and several measurements.
Now Linde : LC280 liquefier system has operated since 2006. The specifications are below.
| Helium Liquefier System | Capacity | ||
| helium liquefier | Linde LC280 : 170L/h (99 vol%He) | helium liquefier | 3360 Nm3/day |
| liquid helium tank | 5000 L | recovery compressor | 3655 Nm3/day |
| compressor for liquification | KAESER FS440 : 0.99 MPa | ||
| recovery compressor | Burckhardt C5U214.4GEX : 14.7 MPa | Storage | |
| recovery bag | 80m3 | cradle cylinders | 4083.2 m3 |