- #1
scupydog
- 101
- 0
"The free electron laser uses a beam of relativistic electrons passing through a periodic, transverse magnetic field to produce coherent radiation."
The above is a quote from an online book, could anyone tell me what is the minimum velocity of an electron that is relativistic, ie its fraction of the speed of light. thx
The above is a quote from an online book, could anyone tell me what is the minimum velocity of an electron that is relativistic, ie its fraction of the speed of light. thx