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Reference.org
Microchannel plate detector
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<p>A microchannel plate (MCP) is used to detect single particles (<a href="/facts/Electron/L0KBo5cW">electrons</a>, <a href="/facts/Ion/3bePpDna">ions</a> and <a href="/facts/Neutron/oRCM1geb">neutrons</a>) and <a href="/facts/Photon/mFNhAEzA">photons</a> (<a href="/facts/Ultraviolet/kncBUqn5">ultraviolet</a> radiation and <a href="/facts/X-rays/wseP79cN">X-rays</a>). It is closely related to an <a href="/facts/Electron_multiplier/IefVA784">electron multiplier</a>, as both intensify single particles or photons by the multiplication of <a href="/facts/Electron/L0KBo5cW">electrons</a> via <a href="/facts/Secondary_emission/ssI9RAtE">secondary emission</a>. Because a microchannel plate detector has many separate channels, it can provide spatial resolution. </p>