There are two ways to produce neutron beams with required parameters (fluence, energy), suitable for NCT:

• Nuclear reactor
• Accelerator driven neutron source (cyclotrons or Linac)

Proposed research in the fields of neutron source for NCT is mainly focused on the development of compact system based on Linac:

• proton RFQ with solid lithium target (proton energy 2,5 MeV)
• Proton RFQ + DTL with beryllium target (proton energy up to 10 Mev)

Nuclear reactors can provide high levels of neutron fluence (up to 10^15 neutrons/s), but they are big, expensive and couldn’t be installed in clinic.

Accelerator driven neutron source are compact and relatively unexpansive. By bombardement lithium or beryllium target by protons or deuterium (energy range from several to tens MeV) required fluence of neutron could by produced.