NODE OF MOUNTING THE MICROCANAL PLATE INSIDE THE VACUUM CASE OF A VACUUM PHOTOELECTRONIC APPARATUS

摘要

The technical solution relates to vacuum photoelectronic devices in which microchannel plates are used to amplify the photocurrent, and more particularly to the microchannel plate mounting part inside the vacuum housing of the vacuum photoelectric device and can be used in the manufacture of such vacuum photoelectronic devices as photoelectronic multipliers, detectors photons, television transmitting tubes, electron-optical converters. The microchannel plate mounting portion inside the vacuum housing of the vacuum photoelectric device comprises a microchannel plate retained within the vacuum housing with an electrically conductive input surface and an electrically conductive outlet surface, as well as a first ring and a second ring. The first ring is a metallized stop ring, which has a metallized surface in contact with the electrically conductive entrance surface of the microchannel plate to provide electrical contact and axial fixation of the microchannel plate within the vacuum housing. The second ring is a metallised ring that is in electrical linear contact with the metalized thrust ring and has a metallized surface providing electrical contact to the outside of the vacuum housing. The metallized surface of the metallized stop ring contacting the electrically conductive entrance surface of the microchannel plate is made in the form of an outer cone with a vertex lying on the vertical axis of said metallized stop ring and an incline angle of 89 ° 59'59 "to 85 °.