Neutron Flux Detector (?)
Détecteur de flux neutronique (?)
Neutronenfluß-Detektor (?)

This device was found in a lot of stuff from a LANL (Los Alamos National Laboratory) surplus auction.

Its construction is very unusual. It has a window similar to the kind used on a scintillation crystal, inside it has a hollow cone of a dark material, and the outside is what appears to be a turned and milled aluminum heat sink.

Apparently, it is filled with xenon or krypton at a relatively high pressure, and the lining has a material (boron or boron carbide) that reacts with neutrons to make the gas inside glow.

 

Hauteur • Height • Höhe : 28 mm • 1" 1/8
Diamètre • Diameter • Durchmesser : 25 mm • 1"

 

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