A step closer to ylem?

[terrafamilia]

The technique involves hitting a cloud of x-rays with a beam of gamma-rays inside a tiny gold hohlraum. Sounds like the method proposed for antimatter creation in an amat farm.

Surely this method would create just as much antimatter as matter- which could be a useful feature.

Question from those of us in the physics for liberal arts majors crowd. What is a "cloud" of photons?

Ciao,

Terrafamilia