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User name R. Lindgren
Log entry time 17:27:52 on April20,2008
Entry number 233395
keyword=Balloon and wire chamber check
16:45 Hall A Control Access to check Balloon pressure
BigBite Gap balloon sagging about 4-6 inches up the pole face. Not good. Fill with helium until restored flush with BigBite pole face and a little extra. Replace helium cylinder(300 psi) with new cylinder(2500 psi). Reset flow so that it is just not flowing through bubbler. Turn current back on in BigBite. Wire chamber gas pressure about 400 psi - okay for now. Exit Hall. Back to Beam permit.