Automatic expansion focusing electrode for photomultiplier and photomultiplier

A photomultiplier tube, automatic expansion technology, applied in the direction of electron multiplier dynode, dynode, electron multiplier detailed information, etc. Various uniformity, improved detection efficiency, ultra-high gain effect

Active Publication Date: 2017-02-22
NORTH NIGHT VISION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Currently, photomultiplier tubes, especially large-sized photomultiplier tubes, are mostly dynode-type technical solutions, the structure of the whole tube is complex, and the time characteristic is relatively weak, while the micro-channel plate type photomultiplier tube has better time characteristics The focusing pole structure can further improve parameters such as TTS, but it is difficult to obtain greater collection efficiency due to various technical conditions, especially the size limit of the focusing set.

Method used

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  • Automatic expansion focusing electrode for photomultiplier and photomultiplier
  • Automatic expansion focusing electrode for photomultiplier and photomultiplier
  • Automatic expansion focusing electrode for photomultiplier and photomultiplier

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Embodiment Construction

[0050] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0051] Aspects of the invention are described in this disclosure with reference to the accompanying drawings, which show a number of illustrated embodiments. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of numerous ways, since the concepts and embodiments disclosed herein are not limited to any implementation. In addition, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

[0052] combine figure 1 , a photomultiplier tube with self-expanding focusing set, including a high-vacuum sealed casing 10...

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Abstract

The invention discloses an automatic expansion focusing electrode and an automatic expansion focusing electrode-based photomultiplier. The photomultiplier comprises a high-vacuum seal shell, the automatic expansion focusing electrode, a high-quantum efficiency photocathode, an electronic multiplier system and a connection and lead system, wherein the high-vacuum seal shell has main functions of sealing and being used as a substrate for other films as a photomultiplier housing part; and the automatic expansion focusing electrode comprises a bottom plate, expansion blades and an automatic trigger mechanism as an electronic collector of the photomultiplier. The high-quantum efficiency photocathode is located in an upper area of the high-vacuum seal shell and converts incident photons into electrons. The electronic multiplier system is located at the lower part of the automatic expansion focusing electrode, amplifies the electrons collected by the focusing electrode and then leads out the electrons through the lead system. The automatic expansion focusing electrode touches the trigger mechanism in a photomultiplier packaging process, so that an expansion action of the automatic expansion focusing electrode is achieved and expansion of the radial size of the focusing electrode is achieved.

Description

technical field [0001] The invention relates to the technical field of microchannel plate photomultiplier tubes, in particular to an auto-expandable focusing set and photomultiplier tube for photomultiplier tubes. Background technique [0002] A photomultiplier tube is a light detector that converts a weak light signal into an electrical signal for output. From the category of multipliers, it can be divided into Dynapolar photomultiplier tubes and micro-channel plate photomultiplier tubes. Various types of photomultiplier tubes are widely used in basic physics research, high-energy gamma ray detection, ground cosmic ray telescope observation, double beta decay experiment, proton decay experiment, dark matter detection, neutrino detection experiment and other fields. [0003] Currently, photomultiplier tubes, especially large-sized photomultiplier tubes, are mostly dynode-type technical solutions. The structure of the whole tube is complex, and the time characteristic is rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J43/06H01J43/10
CPCH01J43/06H01J43/10
Inventor 孙建宁司曙光王志宏张勤东任玲陈辉李冬王兴超徐海洋张正君
Owner NORTH NIGHT VISION TECH
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