TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The radiation transmitting region employs calcium fluoride, barium fluoride, zinc selenide, magnesium fluoride, thallium bromoiodide (KRS-5), thallium bromide/chloride (KRS-6), lithium fluoride, silicon oxide, cesium iodide, potassium bromide, aluminum trifluoride, sodium chloride, potassium fluoride, potassium chloride, cesium chloride, cesium bromide, cesium fluoride, sodium bromide, calcium carbonate, potassium iodide, sodium iodide, sodium nitrate, silver chloride, silver bromide, thallium bromide, aluminum oxide, bismuth fluoride, cadmium selenide, cadmium sulfide, cadmium telluride, cerium fluoride, cerium oxide, chromium oxide, dysprosium fluoride, iron oxide, gallium arsenide, gallium selenide, gadolinium oxide, germanium, hafnium oxide, holmium fluoride, holmium oxide, lanthanum oxide, magnesium oxide, sodium fluoride, niobium pentoxide, lead fluoride, silicon, silicon nitride, strontium fluoride, thallium chloride, yttrium oxide, yttrium fluoride, zinc oxide, zinc sulfide, and/or zirconium oxide, preferably KRS-5, KRS-6, cesium iodide, potassium bromide, sodium chloride, potassium chloride, cesium chloride, cesium bromide, sodium bromide, potassium iodide, sodium iodide, silver chloride, thallium bromide, cadmium selenide, cadmium telluride and/or germanium. The inner wall employs gold, aluminum, silver, copper and/or rhenium. The reaction section includes a reformer to produce reformed gas from the vaporized fuel and water; and zinc selenide, KRS-5, KRS-6, cesium iodide, potassium bromide, sodium chloride, potassium chloride, cesium chloride, cesium bromide, cesium fluoride, sodium bromide, potassium iodide, sodium iodide, silver chloride, silver bromide, thallium bromide, bismuth fluoride, cadmium selenide, cadmium sulfide, cadmium telluride, gallium arsenide, germanium, sodium fluoride, lead fluoride, thallium chloride, yttrium fluoride and/or zinc oxide. The fuel cell is a molten carbonate fuel cell or a solid oxide fuel cell.