Thoughts on amplification of X-rays for propellantless propulsion

Here is an interesting article on X-ray waveguides. Also here for curved waveguides and here for my local copy.

Other links here: 1, 2,

In an earlier blog entry I suggested an amplifier to increase the number of 'photons'. Thinking about it now, could a C shaped waveguide be used. Photons from one end feeds back into the amplifier until saturation.