| 摘要 |
<p>PURPOSE:To provide a photoelectric cathode, a photoelectric tube, and a photo- detecting device having position resolution and high sensitivity. CONSTITUTION:The surface electrode 105 of a photoelectric cathode 1 is divided into a plurality of picture element electrode 1051-105n and photoelectrons generated inside can be emitted to the outside for only the picture elements applied with bias. The one-dimensional position resolution can be attained when picture elements are aligned in a one-dimensional array shape, and the two-dimensional position resolution can be attained when picture elements are aligned in a two-dimensional matrix. A photoelectric tube is provided with the photoelectric cathode in a vacuum container 21 and a bias switching control means of a plurality of picture element electrodes, and it has the one-dimensional or two-dimensional position resolution. A photo-detector is provided with the photoelectric tube, a power source, a timing control means, and a memory means, and the memory means stores the output of an anode in response to the position information of the picture element electrodes in the photoelectron emittable state.</p> |
