5 Channel Photon Counting Board, PC – 5c-a

Lidar Application Dedicated Board

100 MHz photon counter

• 5 Channels (3 channels at 16 bits resolution, 2 channels at 8 bits).
• 100 MHz count rate.
• USB 2.0 _ WinXP compatible.
• Scale 4096 bins per channels, adaptable width from 30 ns to 2 µs.
• 16 bit accumulation counter.
• Live output reading for channel 4 & 5.
• Software for Windows and Labview Drivers.

Specifications:

Photon Counter Channel:

Number of channels	5
Input Voltage Range	200 mV to 2.4 V ( recommended TTL: 1.6V )
Max count per division	16 bits (65536) for channel 1,2,3 / 8 bits (256) for channel 4 & 5.
Channel 4 & 5 data are retrievable at each iteration.

Trigger:

Trigger number	2
Triggering Mode	Interleaved or single
Min Trigger Voltage
Min Trigger Width	50 ns
2 Synchronous Channel output ( FIRE and SYNCH )	Programmable Delay Signal from the Trigger : Adjustable from 0 to 200 µs (10 ns step)

Time Digital Conversion:

Number of time division per channel	4096
Time Division Adjustable width	30 ns to 2 µs
Time per acquisition	123 µs to 8.2 ms
Min Pulse Width	5 ns
Timing Resolution	10 ns (5ns up and 5ns down)

Operating Environment:

Computer system	200 MHz min. CPU clock, 64 MB memory, Windows XP
Bus connector	USB 2.0
Current consumption	350 mA

Applications

Lidar Measurements: Photon Counting & simultaneous event counting:

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