Hitlers Bombe (Hitler's Bomb) is a nonfiction book by the German historian Rainer Karlsch published in March 2005, which claims to have evidence concerning the development and testing of a possible "nuclear weapon" by Nazi Germany in 1945. The "weapon" in question is not alleged to be a standard nuclear weapon powered by nuclear fission, but something closer to either a radiological weapon (a so-called "dirty bomb") or a hybrid-nuclear fusion weapon. Its new evidence is concerned primarily with the parts of the German nuclear energy project underKurt Diebner.
Under supervision of the SS, from 1944–45, German scientists in Thuringia tested some form of "nuclear weapon", possibly a dirty bomb (for the differences between this and a standard fission weapon, see nuclear weapon design). Several hundred prisoners of war are alleged to have died as a result. Karlsch's primary evidence are alleged vouchers for the atomic weapon attempts, a preliminary plutonium bomb patent from the year 1941 (which had been known about, but not yet found), and conducted industrial archaeology on the remains of the first experimental German nuclear reactor.