In order to create an ultrahigh sensitivity camera for Hi-Vision, a prototype of a new image pickup tube combining a 25μm thick New Super-HARP (High-gain Avalanche Rushing amorphous Photoconductor) target with linch MM (Magnetic focusing and Magnetic deflecting)-type high definition electron optics was manufactured. The results of evaluation showed that the tube had ultrahigh sensitivity, high resolution and good lag characteristics. By applying this tube to the detecting system for a new method of micro angiography jointly developed with Tokai University and the National Laboratory for High Energy Physics, some interesting observations have been obtained and the possibility of clinical use was proved.
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