MCP Detector Assembled on a Printed Circuit Board

The detector with a voltage divider on the printed circuit board is designed for the detection of charged particle fluxes as part of a mass spectrometer.

The board on which the MCP detector is mounted consists of a detector voltage divider, components of the power supply circuit and a coaxial connector for the signal readout. The assembly of the detector on the board allows to reduce the influence of spurious inductances, and as a result, the output pulse of the MCP detector acquires a classical waveform without “ripple” with improved timing characteristics. The compact design with 2 pins for the power supply and a coaxial connector for the signal acquisition is more appropriate to the application and provides easy installation and replacement of the detector when needed.

Expected development time: 2023


Basic parameters

Parameter, unit Value
min max
MCP active area diameter, mm 25  
Supply voltage at 1×107 gain, V     2400
Single electron pulse height resolution, %   135
Dark count rate density, count/sec×cm2   3
Average pulse width (FWHM), ns   1.6
Pulse leading edge rise time, ns   0.75
Product consumption current at supply voltage, μA       250

Typical output waveform

The detector electrical connection diagram

R1 = 10 MΩ;
R2 = R3 = 1 MΩ;
С1 = С2 = 470 pF;
Usupply = -2.4 kV, max

1 – control electrode;
2 – MCP unit;
3 – anode

General view, overall, setting and mounting dimensions of MCP detector with 25 mm active area diameter

Lead designation
1Supply voltage –2400 V, max
2. 3Package
SMASignal output