3 He R&D Plan at Los Alamos Takeyasu Ito Los Alamos National Laboratory EDM Collaboration Meeting May 26, 2006 Oak Ridge, TN.

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Presentation transcript:

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