The people here claim they can reduce x-ray lose to acceptable levels because the powerful magnetic field can reduce electron-ion collisions and thus reduce bremsstrahlung losses. Even so they seem to hint that a several megawatt reactor will produce dozens or even hundreds of kilowatts of x-rays.
Yes it is possible to convert x-rays into energy directly (or indirectly by converting them in to heat) direct conversion of x-rays is not a developed technology though. The x-rays could be used to polymerize light hydrocarbons though but that is a idea for another thread.
