The structure immediately surrounding the fusion reaction chamber needs to serve several functions, among which are the following: (i) to sustain a sufficiently clean plasma domain, (ii) to recover energy from the emitted radiation and reaction products, (iii) to shield the surrounding structures and personnel, and (iv) to breed tritium required in the d-t reactor core. This fusion reactor blanket thus serves a most essential role and deserves close examination. While the fusion chamber is generally maintained at plasma conditions such that — at best-an energy self-sufficient reaction chain is established, note that it is indeed the adherent blanket where the neutron and radiation energy released from the plasma is deposited, and which will finally provide the energy transformable for external utilization, i. e. for driving electric generators in a power plant.