A multiplier cluster photomultiplier tube

Abstract

The invention provides a multiplier cluster type photomultiplier tube, which solves the problems of large detection dead zone, measurement errors caused by individual performance differences, and difficulty in accurately adjusting the dynamic range in the current scheme for improving the dynamic range of the photomultiplier tube. The multiplier tube includes a vacuum container, an optical input window, a photocathode, an electron multiplier system, an anode system and a supply electrode. The electron multiplier system is coaxial with the center of the photocathode. The electron multiplier system includes a plurality of spliced ​​electron multipliers, each electron multiplier. An electron multiplying area is formed, and all electron multiplying areas have different electron gains; the area covered by all electron multiplying areas is less than or equal to the effective detection area of ​​the photocathode; the anode system includes multiple anodes, and the number of anodes is the same as the number of electron multiplying poles and the positions are in one-to-one correspondence; power supply The electrode supplies power to the photocathode, the electron multiplier and the anode; the supply electrode is connected to the external power supply system of the vacuum container through the electrode lead; the signal lead wire of each anode is connected to the external circuit through the metal wire.

Description

technical field [0001] The invention relates to a photoelectric detection device, in particular to a multiplier cluster type photomultiplier tube which is provided with different electron gain regions in the device to realize detection with a large dynamic range. Background technique [0002] Since its discovery, cosmic rays have been leading the development of elementary particle physics. A large number of elementary and composite particles have been found in cosmic rays, such as positrons, muon leptons, pions, kaons and other exotic particles. It is crucial to develop a basic picture of the microscopic world and its interactions. Since current observations of cosmic rays cover 10 9 eV to 10 20 In the wide range of eV, the response of detectors varies greatly, so two types of detection technologies, direct detection and indirect detection, are also used for cosmic rays of different energy bands. [0003] In the indirect detection technology, photodetectors are generally ...

AI Technical Summary

Problems solved by technology

[0010] In order to solve the technical problems of large detection dead zone, measurement errors caused by individual performance differences, and difficult accurate adjustment of the dynamic range of photomultiplier tubes in current schemes for improving the dynamic range of photomultiplier tubes, the present invention provides a multiplication cluster photomultiplier tube

Images