mu CF based 14 MeV intense neutron source

Results of a design study for an advanced scheme of a mu CF based 14 MeV in tense neutron source for test material irradiation including the liquid lit hium primary target and a low temperature liquid deuterium-tritium (D-T) mi xture as a secondary target are presented. According to this scheme negativ e pions are produced inside a 150-cm-long 0.75-cm-radius lithium target. Pi ons and muons resulting from the pion decay in flight are collected in the backward direction and stopped in the D-T mixture. The fusion chamber has t he shape of a 10-cm-radius sphere surrounded by two 0.03-cm-thickness titan ium shells. Assuming 100 fusions per muon in this scheme one can produce 14 -MeV neutrons with a source strength up to 10(17) n/s. A neutron flux of up to 10(14) n/cm(2)/s can be achieved in a test volume of about 2.5 l and on the surface of about 350 cm(2). The results of the thermophysical and ther momechanical analysis show that the technological limits are not exceeded. This source has the advantage of producing the original 14 MeV fusion spect rum without tails, isotropically into a 4 pi solid angle, contrary to the d -Li stripping neutron source.