Question: Do they have to gather up the frames one by one, over many runs, and then place them each at their place in the final movie, *or* are all the frames actually able to be recorded sequentially in a single run? I'm thinking it's the first choice, since there are only 1 million pulses per second, even though each pulse is short.
"Could" in this rarefied regime doesn't come cheap. Qualified customers must be moonshot certified. If you have to ask, you're not dreaming big enough.
No. In the context of a "free electron laser," the term "free electron" refers to an electron that is not bound to an atomic nucleus or a specific atom. It is free to move independently within a material or a particle accelerator. "Free electron" is a term in physics to refer to such electrons that will be the vector for electric currents. Essentially electrons that are free. An XFEL is a tool that uses Free Electrons to generate an X-ray laser beam.
