3 ms·

Great find on that presentation. > In the ICS process photons from a laser pulse bounce off a relativistic electron bunch, turning them into X-ray photons thro

Great find on that presentation. > In the ICS process photons from a laser pulse bounce off a relativistic electron bunch, turning them into X-ray photons through the relativistic Doppler effect. They make it sound so simple. Just bounce off a big thing moving towards you to absorb some of it's energy. Fond memories of the time I discovered this effect for myself using a medicine ball and a friend's hamster I was petsitting at the time.

Arrath 2y ago
> Fond memories of the time I discovered this effect for myself using a medicine ball and a friend's hamster I was petsitting at the time. Uh..
- _carbyau_ 2y ago
  This mental picture is even better given the TFA's effect so described used the word "relativistic". That hamster time travelled - briefly.
  - pfdietz 2y ago
    I'm sure it underwent contraction along one axis.
  - itishappy 2y ago
    Time certainly seemed to slow down for me! Gracie was uninjured, for those concerned. Caught her gently. Learning experience. Future experimentation was done with a lacrosse ball.