Laser-beam interaction for light
There are two topics
The first to generate ultrafast X-ray radiation using
Thomson scattering at very small angle, as can be seen in the following illustration,
due to the small slipage between the laser pulse and the beam, the pulse
duration of the X-ray will be very close to that of the interacting laser
pulse, namely, 50-100 fs.
This is obviously an easy way to generate we collimate, ultrafast X-ray pulses.
The peak brightness is close to APS. Though not funded, I did manage to have
The second project is to generate Gamma rays of upt to
3 GeV with flux of 10^8, thaks to the top-up mode of the APS. The following
is a calculation of the feasible performance of the such a source, in comparison
with existing sources.
For more info, click for a full length
note about the project and a prentation
given at one o fthe nuclear physics workshops.
As a minor, but related project, I did some calculation
on nolinear Thomson scattering, which shows interesting feature such as pulse
shape dependence, here is a short note
on the work presneted at CLEO 2002.