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Manhattan Project National Historical Park, Part I: B Reactor » 6_3_DSCF2015_v1

A neutron-sensitive ion chamber at the top of B Reactor, moderated by beeswax.

This neutron-sensitive ion chamber at the top of B Reactor is among the earliest reactor instrumentation still surviving. Its converter material is probably natural boron. It is moderated with several inches of beeswax!

A neutron-sensitive ion chamber at the top of B Reactor, moderated by beeswax.


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