Self-expanding focusing electrode and photomultiplier tube for photomultiplier tube

A photomultiplier tube and automatic expansion technology, which is applied in the direction of electron multiplier dynode, dynode, electron multiplier detailed information, etc., can solve the problems of difficult to obtain collection efficiency, complex structure of the whole tube, weak time characteristic, etc., and achieve good Various uniformity, improved detection efficiency, and ultra-high gain effects

Active Publication Date: 2017-12-26
NORTH NIGHT VISION TECH
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  • Abstract
  • Description
  • Claims
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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. 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 pole.

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  • Self-expanding focusing electrode and photomultiplier tube for photomultiplier tube
  • Self-expanding focusing electrode and photomultiplier tube for photomultiplier tube
  • Self-expanding focusing electrode and photomultiplier tube for photomultiplier tube

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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] to combine figure 1 , a photomultiplier tube with self-expanding focusing electrode, comprising a high-vacuum sealed...

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Abstract

The invention discloses an automatic expansion focusing electrode and a photomultiplier tube based on the automatic expansion focusing electrode. The photomultiplier tube includes a high-vacuum sealed shell, an auto-expandable focusing electrode, a photocathode with high quantum efficiency, an electron multiplication system, a connection and a lead system. The high-vacuum sealed casing as the outer shell of the photomultiplier tube is mainly used for sealing and as the base of other film layers. The self-expanding focusing electrode is used as the electron collector of the photomultiplier tube, including the bottom plate, expansion blades and automatic triggering mechanism. A high quantum efficiency photocathode is located in the upper region of the high vacuum sealed enclosure and converts incident photons into electrons. The electron multiplication system is located under the self-expanding focusing pole, which amplifies the electrons collected by the focusing pole and leads them out through the lead system. During the packaging process of the photomultiplier tube, the auto-expanding focusing pole will trigger the trigger mechanism, so as to realize the expansion action of the auto-expanding focusing pole and realize the enlargement of the radial dimension of the focusing pole.

Description

technical field [0001] The invention relates to the technical field of microchannel plate photomultiplier tubes, in particular to an auto-expandable focusing electrode and a 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 characteristi...

Claims

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Application Information

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Patent Type & Authority Patents(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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