The invention provides a near-pasting type micro-channel plate type
photomultiplier with a large opening
area ratio. The near-pasting type micro-channel plate type
photomultiplier comprises an input light window, a photoelectric
cathode, a square tube shell, a micro-channel plate and a position-sensitive
anode. The photoelectric
cathode is located on the inner surface of the input light window, and the micro-channel plate is located between the photoelectric
cathode and the position-sensitive
anode; the square tube shell comprises a first
ceramic ring, an input
electrode, a second
ceramic ring, a
getter electrode, a third
ceramic ring and an
indium sealing layer which are sequentially stacked, and the square tube shell is connected with the input light window in a sealed mode through a sealing layer. The position-sensitive
anode comprises a ceramic framework, an output
electrode and anodes, the anodes are distributed in the ceramic framework in a
matrix array, and the anodes are not communicated with one another and are independent of one another; each anode is of a conical structure, an electronic receiving end is a square surface, an output end is gradually transited from a conical shape to a cylindrical anode rod, and the micro-channel plate adopts a two-
part type vertical superposition structure, so that the apertures of the two micro-channel plates are <-shaped, one end ofthe micro-channel plate is positioned and powered by an input electrode, and the other end of the micro-channel plate is positioned by an output electrode.