Detector Type MCPs
Detector type MCPs are used to amplify weak signals and determine position parameters of particles in a variety of image detectors, as part of photoelectronic and X-ray vacuum devices, field-ion microscopes, mass-spectrometers of various types.
Photomultiplier tubes (PMT) with detector type MCPs have the advantage of fast response and gain, increased surface area, low power consumption, and stable operation under the exposure to magnetic fields.
Applications of detector type MCPs
- astronomy
- aerospase structures biology
- machine building
- medical diagnosis
- experimental physics
- ecology and biosecurity
Specification
Decryption of the name
1) Rimmed MCP — rimmed microchannel plate
2) 18 — active area diameter, mm
3) 10 — channel diameter, mm
4) А — with increased bias angle
Schematic diagram
Microchannel plates with 46 mm, 50 mm, 56 mm, 87 mm diameters
| Parameter, unit | Microchannel plate type | |||||||
|---|---|---|---|---|---|---|---|---|
| MCP 46-12 | MCP 50-10 | Rimmed MCP 50-10 | MCP 50-15 | MCP 56-15 | Rimmed MCP 56-15 | MCP 70-15 | MCP 87-12 | |
| Nominal value | ||||||||
Geometrics |
||||||||
| Outer diameter D, mm | 45.7–46.0 | 49.5 | 49.8–50.0 | 56 | 69.5–70.0 | 86.3–86.8 | ||
| Active area diameter, DA, mm, min | 44 | 48.5 | 41.5 | 47.5 | 54 | 48 | 68.0 | 77.5 |
| Thickness L, mm | 0.46–0.50 | 0.5 | 0.75–0.80 | 0.7–0.8 | 0.69–0.75 | |||
| Channel bias angle θ, degree | 5°–9° | 6°–9° 11°–13° |
7°–10° | 9°–12° | 8° | |||
Structural parameters |
||||||||
| Channel diameter, μm | 11.1–12.5 | 10.0–10.6 | 14.5–15.5 | 11.5–12.5 | ||||
| Channel pitch, µm | 15 max | от 12.2 до 12.5 | 19 max | 15 | ||||
| Contact electrode material | Chromium | |||||||
Electrical ratings |
||||||||
| Rated voltage at gain of 104, V, max | 1100 | 1200 | ||||||
| MCP resistance, ×108 Ohm | 0,5–10 | 0.25–2.5 | 0.5–10 | 0.5–2.5 | 0.05–0.5 | |||