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<p>result in around ten to thirty neutrons per event, of which the bulk are known as "evaporation neutrons" (~2 MeV), while a minority are known as "cascade neutrons" with energies reaching up to the GeV range. Although spallation is a very efficient technique of neutron production, the technique generates high-energy particles, therefore requiring shielding for safety.</p>

<p><big>Low-energy nuclear reactions</big></p>
<p>Low-energy nuclear reactions are the basis of neutron production in accelerator-driven sources. The selected target materials are based</p><p>
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