Maintenance for Helios
Date:
Tuesday, February 8, 2005
Synopsis:
Modification Top Flange of He Bath
Equipment/Beam Line:
Description:
Top flange of He bath: new groove with 0.047'' Dia was made and Indium with 0.050'' dia used. BG= 2E-9 vacuum: 5E-5(room tep) vacuum: 5E-7(N2 tep) NO LEAK THE TOP FLANGE OF HE BATH!