Krasilnikov A. V., Nishitani T., Kaneko J., Sasao M. // Fusion Engineering and Design. 1997. <...> The vertical neutron camera is located in the divertor zone of the ITER installation in extreme operation conditions: neutron flux up to 105—1010 s-1cm-2, temperature 100—150 C, technological heating up to 250 C, magnetic field 1.5 T, high vacuum. <...> These conditions do not allow using traditional fast neutron spectrometry techniques. <...> The aim of this work is the analysis of operation conditions and substantiation of diamond detectors application. <...> The conception and sketch scheme of the system of diamond neutron spectrometers and flux monitors for vertical neutron camera are given. <...> It is shown that diamond detector has no restrictions for application in ITER vertical neutron camera conditions on the all critical parameters. <...> PACS: 52.50.-b Keywords: diamond detector, diamond neutron spectrometers, neutron flux monitor, ITER. <...>