Very highly sensitive HDTV camera tube is newly developed which adopts amorphous Se photoconductive target utilizing avalanche multiplication effect. By combining this target with high performance 1-inch all electrostatic electron optics successfully, very high sensitivity(20times as sensitive as standard Saticon tube) and, at the same time, high resolution(amplitude response at 800 TV lines is 35%) are achieved in new tube. In 20 times sensitive mode. S/N ratio is about 40 dB and the quality of picture satisfies the demands in HDTV use.
