I was looking at various superweapons in Gundam, and recently came across a Gamma-Ray Weapon in Gundam SEED known as the GENESIS.
Here is a description of how it works:
"GENESIS is a huge gamma ray cannon that uses nuclear explosions to produce a massive burst of gamma radiation, which is reflected back by an external alignment mirror and focused by a second mirror on the cannon to create a laser beam. The nuclear explosions are possible due to the use of the Neutron Jammer Canceller technology. The laser fired by GENESIS is sufficiently powerful that if it were to hit Earth, it would wipe out half the life on the planet. It causes human bodies closest to the shot to inflate and explode. The external mirror is severely damaged in the blast and must be replaced for another shot to be fired."
Before I ask about its feasibility, I should place my own assumptions:
- The nuclear weapons used can be of any necessary yield, even above the TSAR Bomba. Antimatter, necessary Catalysts to boost fusion, all is fine.
- The surrounding materials (such as the mirrors) can withstand the high energies and temperatures (some nuke-proof Unobtainium, it is fine here).
With that, I ask if the mechanics of how the Gamma Ray Laser works here is feasible, the radiation reflected and focused between two mirrors to produce the laser. I need not have the big world-ending effects for the weapon work, just the mechanics of creating this Gamma Ray Beam, with the aforementioned assumptions.
If it does not work, then feel free to bring forth corrections, or what will be needed to make it work.