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High-temperature-uniformity air exhausting device for manufacturing micro-channel plate type photomultipliers

A technology of photomultiplier tube and micro-channel plate, which is applied in electron multiplier cathode device, light-emitting cathode manufacturing, detailed information of electron multiplier, etc., can solve the problem that the process conditions of photomultiplier tube cathode fabrication cannot be satisfied, and the temperature uniformity of the shell surface is poor. , Poor thermal conductivity of glass tube shell, etc.

Pending Publication Date: 2020-06-09
NORTH NIGHT VISION TECH
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  • Claims
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Problems solved by technology

[0003] When the exhaust device is heated, the interior is in a high vacuum state, and the heating device maintains the internal temperature of the bell jar by heat radiation. When the exhaust device simultaneously manufactures three or more photomultiplier tubes, due to the Mutual shading, different positions of the tube shell and different distances from the heating device, poor thermal conductivity of the glass tube shell and other factors, if the ordinary heating method is used, the temperature uniformity of the tube shell surface will be extremely poor, which cannot meet the process conditions for the cathode of the photomultiplier tube

Method used

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  • High-temperature-uniformity air exhausting device for manufacturing micro-channel plate type photomultipliers
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  • High-temperature-uniformity air exhausting device for manufacturing micro-channel plate type photomultipliers

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Embodiment Construction

[0020] 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.

[0021] 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.

[0022] combine Figure 1-3 As shown, according to an exemplary embodiment of the present invention, the exhaust device with...

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Abstract

The invention belongs to the technical field of photomultipliers, and provides a high-temperature-uniformity air exhausting device for manufacturing micro-channel plate type photomultipliers. The device comprises a main machine table, a bottom plate, a bell jar removably mounted on the base plate, a lifting mechanism arranged on the bottom plate, a heating device which is arranged in a closed cavity formed by the bell jar and is used for heating photomultiplier glass spherical shells clamped on a three-station rotary worktable from the side part, the top part and middle gap position of the photomultiplier glass spherical shells, a control unit used for controlling the power of the heating device. With the high-temperature-uniformity air exhausting device for manufacturing the micro-channelplate type photomultiplier of the invention and a heating method adopted, three or more photomultipliers can be manufactured at the same time; the problem of poor temperature uniformity caused by non-uniform position distribution of the photomultiplier shells in the air exhausting device is solved; and heating and working efficiency is improved.

Description

technical field [0001] The present invention relates to the technical field of photomultiplier tubes, in particular to microchannel plate photomultiplier tubes (PMT-MCP), in particular to a high temperature uniformity exhaust device for the manufacture of microchannel plate photomultiplier tubes, A uniform heating device and heating method suitable for multi-station manufacturing of photomultiplier tubes. Background technique [0002] Microchannel plate photomultiplier tube is a vacuum photodetection device, which is often used for the detection of single photon signals. The micro-channel plate photomultiplier tube needs to be manufactured with an exhaust device. The manufacturing process includes vacuum pumping, high-temperature baking, photocathode manufacturing, and sealing. Among them, the production of photocathode is the core process of photomultiplier tube. It needs to be produced on the inner surface of the upper part of the tube shell under high vacuum and specific...

Claims

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Application Information

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IPC IPC(8): H01J9/12H01J43/08
CPCH01J9/12H01J43/08H01J2209/02
Inventor 孙建宁王兴超司曙光苏德坦侯巍任玲黄国瑞徐海洋张昊达曹宜起
Owner NORTH NIGHT VISION TECH
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