helmets are clearly just amplifiers for the mind control rays
They are not really amplifiers, although the plasma generated from the foam in the radiation channel does probably provide a counter-pressure to the ablated material from the tamper, which slows the rate at which the radiation channel becomes swamped with heavy (radiation absorbing) nuclei.
They are not really amplifiers, although the plasma generated from the foam in the radiation channel does probably provide a counter-pressure to the ablated material from the tamper, which slows the rate at which the radiation channel becomes swamped with heavy (radiation absorbing) nuclei.