A Faraday cage is ineffective against radiation from the Japanese reactor, as it primarily blocks radio and microwave frequencies, while X-rays and gamma rays can penetrate matter. To effectively stop high-energy electromagnetic radiation, materials with significant thickness and density, such as concrete and lead, are recommended. Lead is dense but can produce high-energy Compton recoil electrons, which may generate additional radiation. Pulsed DC current at the same frequency as the radiation does not provide a solution for stopping it. Therefore, conventional shielding materials are necessary for radiation protection in this context.
