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Maintenance for Belle

Wednesday, August 13, 2008
Leak Check
Equipment/Beam Line: 

All the following results are achived in the absence of the magnet! At room temp, ther was no leak! Cryostat cooled down to LN2 temperature and leak rate of 2E10-5 torrL/sec appeared almost instantly after inserting He to the main bath. Magnet port was on the main bath was plugged with a .blank flange. Since there is no time at the moment to fix the leak, every thing is going to be put together and get the superconducting magnet operational(pumping continuously with using a vacuum pump).

Rahim Abasalti