In these experimental conditions, the positrons inside the high-Z target are mainly generated via either direct electroproduction (trident process), in which pair production is mediated by a virtual photon in the electron field [25], or via a two-step ‘‘cascade’’ process where the electron first emits a real photon (bremsstrahlung) [26], which then produces an electron-positron pair via the Bethe-Heitler process [27].
It looks like the could get positrons with energies in the range of 90 to 120 MeV.
Now, while I'm sure the size of this whole contraption can be considered as "tabletop", it doesn't include the laser source, which is a petawatt laser, something that is not trivia and not easily available to everyone, much less having it fit onto a tabletop size (at least, for now).
Zz.
No comments:
Post a Comment
The comments posted to this blog are MODERATED. All comments will require MY APPROVAL to be released, so please do NOT post multiple comments just because you do not see it appearing immediately!
All SPAM will never be approved for release in this blog, no matter how much you try to disguise it. CRACKPOTTERY and attempts at advertising your personal theory and website/blog will be treated in the same manner as unwanted SPAM.