as part of the Allied Operation Alsos, taken to Huntington, England and interned at Farm Hall, with nine other scientists thought to be involved in nuclear research and development. The nine others incarcerated were Erich Bagge, Walther Gerlach, Otto Hahn, Paul Harteck, Werner Heisenberg, Horst Korsching, Max von Laue, Carl Friedrich von Weizsäcker, and Karl Wirtz. All were involved with nuclear research except for von Laue. They were repatriated to Germany in early 1946. From 1947/1948, Diebner was director and joint owner of DURAG-Apparatebau GmbH in Hamburg. Postwar career From 1956, Diebner was a member of the supervisory board of the Gesellschaft zur Kernenergieverwertung in Schiffbau und Schiffahrt m.b.H (GKSS, Company for the Commercial Exploitation of Nuclear energy in Ship Building and Shipping); Erich Bagge, was the general director. From 1957, Diebner was also a lecturer at the state School of Naval Engineers in Flensburg. Internal reports The following reports were published in Kernphysikalische Forschungsberichte (Research Reports in Nuclear Physics), an internal publication of the German Uranverein. The reports were classified Top Secret, they had very limited distribution, and the authors were not allowed to keep copies. The reports were confiscated under the Allied Operation Alsos and sent to the United States Atomic Energy Commission for evaluation. In 1971, the reports were declassified and returned to Germany. The reports are available at the Karlsruhe Nuclear Research Center and the American Institute of Physics. F. Berkei, W. Borrmann, W. Czulius, Kurt Diebner, Georg Hartwig, K. H. Höcker, W. Herrmann, H. Pose, and Ernst Rexer Bericht über einen Würfelversuch mit Uranoxyd und Paraffin G-125 (dated before 26 November 1942) Kurt Diebner, Werner Czulius, W. Herrmann, Georg Hartwig, F. Berkei and E. Kamin Über die Neutronenvermehrung einer Anordnung aus Uranwürfeln und schwerem Wasser (G III) G-210 Kurt Diebner, Georg Hartwig, W. Herrmann, H. Westmeyer, Werner Czulius, F. Berkei, and Karl-Heinz Höcker Vorläufige Mitteilung über einen Versuch mit Uranwüfeln und schwerem Eis als Bremssubstanz G-211 (April 1943) Kurt Diebner, Georg Hartwig, W. Herrmann, H. Westmeyer, Werner Czulius, F. Gerkei, and Karl-Heinz Höcker Bericht über einen Versuch mit Würfeln aus Uran-Metall und schwerem Eis G-212 (July 1943) Selected literature Kurt Diebner Der deutsche Forscheranteil, Die Zeit (18 August 1955) as cited in Hentschel and Hentschel, 1996, References, LX. Kurt Diebner (alias Werner Tautorus) Die Deutschen Geheimarbeiten zur Kernenergieverwertung während des zweiten Weldkrieges 1939-1945, Atomkernenergie Volume 1, 368–370 and 423–425 (1956) as cited in Hentschel and