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Neutron Detectors

BF3 detector works by absorbing a neutron and causing an ionizing reaction.

boron nucleus in the BF3 detector breaks up into a helium nucleus (alpha particle) and a lithium nucleus, with 2310 keV shared between them.

in the case of 3He, the neutron causes the breakup of the nucleus into a tritium nucleus, 3H, and a proton, lH. The triton and the proton share the 765-keV reaction energy that is detected by the instrumentation.

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