The laser driver needs to push many amps to get a fast enough rise time, and the only sensor that’s fast enough to not smear the signal is a photomultiplier tube. But persistence pays off ...

Conventional photomultiplier tubes capture the faintest light and ... “For example, we’re now developing hyper-output laser sources that are emerging as a critical technology for fusion ...

The device includes a voltage reference generator to initiate the chemical reaction and a photomultiplier tube (PMT ... expansion board and the live output can be viewed in ppLOGGER in real ...