3 He R&D Plan at Los Alamos Takeyasu Ito Los Alamos National Laboratory EDM Collaboration Meeting May 26, 2006 Oak Ridge, TN R&D tasks Evaporative purification of 4 He Injection of 3 He HV test R&D tasks Evaporative purification of 4 He LANL Injection of 3 He ABS test at 45 degree LANL Prototyping/testing of 3He injection volume Duke HV test Continued in the same test apparatus Schedule Test cryostat Central Detector System Insert Test cryostat Evaporative purifier test schematic SFHe NMR cell Polarizer cell Permanent magnets 3 He input pump RGA Detailed analysis of evaporative purifier done by D.Haase B 0 =1T B 0 =100gauss Magnetic field generated by 3 He B 0 =1T EDM (P=100%) B 0 =100 gauss Proton NMR FID of glycerin sample B 0 = 100 gauss V = Qn BA Q = 30 A = 10 cm 2 B proton ~ gauss If we use B 0 =1T, B 3He ~ gauss may be possible. X 3 =10 -8 Sensitivity B 3He ~10 -8 gauss X 3 =10 -6