Our Tutorials

coincidence

When two or more events strike at the same time, a coincidence occurs.

Find some examples of what is and what is not a coincidence, the effect of pulse width in coincidences, and our auto-reset and auto-extend features.


dead time

After a single detection arrives, a detector automatically becomes disabled by a lapse known as dead time. This disable time helps to avoid residual avalanches and therefore improves accuracy of the detector.


delay

A perfect coincidence occurs when two pulses of different sources arrive at the same time. However there are several factors that might delay one pulse from the other systematically, and therefore hiding the real correlation of such sources.


edge detection

Detections in a Tausand Abacus occur by reading the instant where a rising edge of an input pulse arrives, since this is the signature of a valid detection. A major advantage of this method of detection is that avoids double counting a coincidence due to different pulse widths between detectors.


sampling time

In a simple counting experiment, the sampling time indicates the time frame where the counting is enabled. For example, if you count how many people pass through your lab in one day, your sampling time is one day.