Positron Dynamics gave an overview and update on their Antimatter propulsion work.
They are slowing the positrons that are generated.
Krypton isotopes to generate hot positrons.
Use their system to moderate the positrons so they can be used.
They need to efficiently create more isotope to get more positrons instead of using magnetic storage.
They are working on a bragg laser mirror using aerogels. Their processes for positron moderation overlap with making bragg laser mirrors. Light mirrors for laser sail propulsion.
They are also working to get to 100 watts per kilogram for a nuclear battery using aerogel and graphene layers.
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