Science Questions

How is it possible to take pictures at billions of frames every second?

Sun, 24th Jan 2010

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Slack Gigamon7639, SecondLife asked:

How can you possibly take pictures at billions of frames every second?


We put this question to Bill Proud:

Well number one, you need a very intense bright light source.  Some people actually use explosives to do the lighting for the system! The next thing you need is a thing called a CCD, Charge Capture Device, or CMOS camera.  What you're doing is switching on high voltages, in and out very, very quickly.  So itís high voltage pulses on a nanosecond duration with explosive as the lighting.  These can be quite destructive experiments, even if you're doing quite small scale experiments.


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