Stripline Microchannel Plates
Mar 2011PHOTONIS TechnologiesRequest Info
STURBRIDGE, Mass., March 21, 2011 — Photonis USA’s Stripline microchannel plates (MCPs) enable the capture of sequential images of charged particle events at very high speeds, making them a useful diagnostic component for documenting nuclear events during energy research and process development.
Microchannel plates are components used in the detection and amplification of charged particles and electromagnetic radiation, and are commonly used in analytical instrumentation. The Stripline models employ electrode strips to create dielectric polarization, allowing for the movement of ions toward or away from a positive or negative charge. The result is that individual microchannels within the microchannel plate can be turned on sequentially as fast as the electrical charge can permeate the circuit, so a high-speed sequence of events can be recorded and analyzed.
A key component of the line is an image-grade patented Mounting Pad Rimless microchannel plate to which several fine layers of specialized metallization materials have been precisely applied to both the front and back surfaces.
Microchannel plates with metal stripline coatings are key components in applications such as x-ray framing cameras, where the image from each soft x-ray channel is produced along a single MCP stripline. The front of the MCP is coated with conducting strips, and the back is continuously coated, forming microstrip transmission lines.
Strips of low-resistance materials allow the high-voltage pulse to propagate down the strip and sequentially turn on individual channels. A high-speed sequence of events can be captured at high resolution, then recorded and analyzed.
Typical coating layers include gold, copper, nichrome and magnesium oxide. The strip line application requires the ability to deposit multiple thin, highly uniform coatings without breaking vacuum.