EDMEDM EDM Collaboration Meeting 3-06 Jan Boissevain, P-25 March 2, 2006 NCSU EDM Experiment Design Status.

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Presentation transcript:

EDMEDM EDM Collaboration Meeting 3-06 Jan Boissevain, P-25 March 2, 2006 NCSU EDM Experiment Design Status

EDMEDM Key Design Parameters 2 ea Measurement Cells 76mm x 100mm x 500mm HV Study (Mischke) Drives Helium Volume Size Magnet Field Uniformity Requirement Drives B0 Size

EDMEDM

EDMEDM

EDMEDM

EDMEDM

EDMEDM 3He Injection Volume (1 Liter) From 3He Source Cesium Port 4He Liquid Level Double Wall Pyrex Volume Outer 4He Volume Connected to DR Mixer

EDMEDM Upper Cryostat Installation

EDMEDM Target Cryostat Insert

EDMEDM Target Cryostat w/ Dressing Coils

EDMEDM Target Cryostat w/ Gradient Coil Added

EDMEDM Target Cryostat w/ B0 Magnet Added

EDMEDM T. Cryostat w/ Ferromagnetic Shield Added

EDMEDM

EDMEDM

EDMEDM Target Cryostat Hor. Section

EDMEDM Ferromagnetic Shield Nesting Inner Dressing Coil Outer Dressing Coil B0 cosθ Magnet Ferromagnetic Shield Superconducting Lead Shield Gradient Magnet Coil

EDMEDM Ferromagnetic Shield Nesting 2 Inner Dressing Coil Outer Dressing Coil 50°K Shield 4°K Shield Superconducting Lead Shield Ferromagnetic Shield B0 cosθ Magnet Gradient Coil

EDMEDM Central LHe Volume Mount Vacuum Can 50°K Shield 4°K Shield Central LHe Volume 4 Layer μMetal Shield Mount (1 of 4)

EDMEDM Central He Volume Mount 2 Vacuum Can 50°K Shield Mount Point 4°K Shield Mount Point Central Volume Mount Point 50°K Shield 4°K Shield

EDMEDM EDM/Beam-line Interface Collimator Be Foil 4°K Shield Be Foil 50°K Shield Be/Teflon Multi- Foil Window at LHe/Vacuum Interface Measurement Cell

EDMEDM What’s Missing Laser Ports Light Guide Solution PMTs

EDMEDM Engineering Concerns Target Cryostat Materials –Flange Material? SS? CuNi? –Fasteners? 3He Injection Volume –Super-fluid Film Stopper –Friendly Environment for Incoming Polarized 3He –Cesium Vaporizer

EDMEDM EDM Cell Lifetime Experiment

EDMEDM EDM Cell Lifetime Section

EDMEDM Upper Cryostat Test in MPF-10

EDMEDM Prototype Upper Cryostat

EDMEDM Upper Cryostat Test Section