Microchannel Electron Multipliers

Microchannel Electron Multipliers (MEMs) are a sort of microchannel plates (MCPs) — electronic products designed for detection and amplification of charged particles and radiation.

MCPs consist of millions of ultra-thin conductive glass capillaries, each acting as an independent secondary electron multiplier.

As part of application devices, MEMs solve the task of:



Parameter, unitMEM 50-8MEM 43×63MEM 54×54MEM 20×90MEM 70×90MEM 100×100
MEM longitudinal dimension, mmᴓ 50-0.262.8–63.054.4–54.689.8–90.089.65–90.0099.5–100,0
MEM cross sectional dimension, mm42.8–43.054.4–54.619.8–20.069.80–70.0099.5–100.0
Active area dimensions, mm min41.539.0×59.052.5×52.515.0×85.066.0×86.096.0×96.0
Solid rim width*, mm min2.02.0
Thickness, mm0.47–0.530.6–0.850.370 – 0.4100.6–0.8250.6–1.10.6–1.0
Channel diameter, μm7.5–119–125.5–6.59–129–129–12
Channel pitch, μm max1315.08,
Channel bias angle, degrees4–96–106–106–136-106–10
Supply voltage corresponding to gain of 104, V max120012001200120012001200
Gain non-uniformity over the active area, % max101010101010
Electrical resistance at 800 V supply voltage, ×108 Ohm0.05–100.2–100.03–0,10.1–10.2–100.2–10
Dark current density, A/cm2 max1×10-131×10-131×10-131×10-131×10-131×10-13
Testing voltage, V max135013201350135013501350

* possible manufacturing without solid rim border