1. Available thin solenoids with dimensions of about 1 m  X 1 mL with field about 1 tesla in KEK/IPNS KEK/IPNS Y.Makida 2005/March/28

2. Introduction There are 2 available thin solenoid magnets in KEK/IPNS. Both of them consists of a thin coil, LHe reservoir tank, radiation shield and honeycomb outer vacuum vessel. Both of them has developed for balloon borne experiment. There is one available thin coil, which is planning to be install into a cryo-cooler cooled cryostat.

3. Thin solenoid magnets NamePCMAG#3 Super JC PCMAG#4 Central Field1.20.92tesla Current520580A Stored Energy640370kJ Warm Bore Diameter852 mm Outer Diameter1180 mm Effective Warm Bore L1000 mm Weight430423kg Radiation length0.2<0.2 Coil thickness7.25.7mm LHe tank / life250 L / 9 days160 L / 5 days Pre-cooling55days

4. Thin solenoid magnets

5. Thin solenoid magnets automatic operation 1.Precooling 2.LHe refill 3.Magnet charge / discharge

6. Cryo-cooler cooled solenoid (plan)