Development of Neutron Color Image Intensifier for Pulsed Neutron Source

We have been developing neutron color image intensifiers (hereafter abbreviated as NCIIs) for static neutron sources. With the recent progress of high power pulsed neutron sources, needs for energy selective neutron imaging are increasing. To fulfil suchrequirements, we have newly developed NCIIs having a high-speed blanking (gating) circuit and an output phosphor withshorter decay time. By combining these functions with a selection of input phosphor, measuring neutron energy ranges could beprecisely selectable between cold and epithermal region, which extends the NCII utilization area to pulsed facilities.