Fig.4-2 Neutron energy distributions of typical neutron sources (Each distribution is normalized to have a maximum value of 1.0, low energy component of nuclear reactor is omitted)

Fig.4-2

Fig.4-2 Neutron energy distributions of typical neutron sources (Each distribution is normalized to have a maximum value of 1.0, low energy component of nuclear reactor is omitted)

Most neutrons obtained from proton accelerators (e.g., J-PARC), nuclear reactors, and electron accelerators have energies below 10 MeV. On the other hand, a deuteron accelerator can produce high-energy neutrons above 10 MeV (solid line: experimental neutron energy distribution from a lithium target bombarded by a 40-MeV deuteron).

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