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HD-ICE from BNL/LEGS

HD-ICE from BNL/LEGS. Pros Small holding field ( ∫Bdl ~0.005-0.05Tm ) Small dilution Less radiation length Less nuclear background Wider acceptance Cons HD target is highly complex and there is a need for redundancy due to the very long polarizing times (months).

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HD-ICE from BNL/LEGS

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  1. HD-ICE from BNL/LEGS • Pros • Small holding field (∫Bdl ~0.005-0.05Tm) • Small dilution • Less radiation length • Less nuclear background • Wider acceptance • Cons • HD target is highly complex and there is a need for redundancy due to the very long polarizing times (months). • Need to demonstrate that the target can remain polarized for long periods with an electron beam with currents of order of 1-2 nA ~ 5 cm long Expected Polarization 75% H, 40% D (60%, 35% used at LEGS)

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