MCS-CT3 pulse counting instrument

 Johanna Taieb

Key Features:

  • count rates up to 150 MHz
  • trigger input for synchronous counting
  • accepts TTL input
  • two modules can be operated simultaneously
  • easily configured as a laboratory rate-meter
  • channel widths from 200µs to 999hr
  • number of channels from 1 to 65535, or continuous operation
  • software can be customised by user
  • compact


The MCS-CT3 is a cost-effective, high performance pulse counting instrument for use with a PC or Laptop via the USB 2.0 interface. It can be operated as a laboratory rate-meter or, when used with an ET Enterprises AD8 amplifier/discriminator and suitable detector, it becomes a wide dynamic range photon counting system.

The MCS-CT3 is a compact electronics module which records and stores pulses as a function of time. There is a choice of three software configurable counting modes: pre-set number of channels, pre-set total measurement period, or continuous measurements. Operation and data retrieval can be controlled from the supplied application software or from the users’ own customised code. Measurements can also be controlled by an external trigger input, and there are two trigger outputs for control of associated hardware such as optical shutters. At the end of a measurement cycle the results are automatically saved to an MS Excel compatible file for subsequent analysis and/or export to other programs.

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