Could someone please fill in the gaps in my knowledge about Linear Accelerators.
The drift tubes are spaced equally apart. BUT the electrons speed up in between the tubes so surely the distance between the tubes should increase as does the length of the drift tubes
What ensures no force is felt inside the tubes? and what causes the force on the electrons between the tubes?
If I get this I will hoepfully understand Linac's but may come across a few more questions later.
Thanks for any help
The Attempt at a Solution