出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：A new imaging method that combines high-efficiency fast-neutron detection
with sub-ns time resolution is presented. This is achieved by exploiting the high
neutron detection efficiency of a thick scintillator and the fast timing capability and
flexibility of light-pulse detection with a dedicated image intensifier. The neutron
converter is a plastic scintillator slab or, alternatively, a scintillating fibre screen. The
scintillator is optically coupled to a pulse counting image intensifier which measures
the 2-dimensional position coordinates and the Time-Of-Flight (TOF) of each
detected neutron with an intrinsic time resolution of less than 1 ns. Large-area
imaging devices with high count rate capability can be obtained by lateral
segmentation of the optical readout channels.
