Karl Zimmer

Karl Günter Zimmer (12 July 1911 – 29 February 1988) was a German physicist and radiation biologist, known for his work on the effects of ionizing radiation on DNA. In 1935, he published the major work, "Über die Natur der Genmutation und der Genstruktur", with N. V. Timofeev-Resovskij, and Max Delbrück; it was considered to be a major advance in understanding the nature of gene mutation and gene structure. In 1945, he was sent to the Soviet Union to work on their atomic bomb project. In 1955, he left Russia and eventually went to West Germany.

Education

Zimmer obtained his doctorate in 1934 with a thesis on photochemistry. [ [http://www.lib.utk.edu/spcoll/manuscripts/ms0839fa.html Zimmer Papers] – University of Tennessee.] [ Herrlich, 1988, 178.]

Career

In Germany

Early on, Zimmer worked as an advisor in radiotherapeutic physics in a radiological hospital and as an employee of "Auergesellschaft" in Berlin. [ [http://www.lib.utk.edu/spcoll/manuscripts/ms0839fa.html Zimmer Papers] – University of Tennessee.] However, he completed most of his theoretical work at the " Kaiser-Wilhelm Gesellschaft’s" "Institut für Hirnforschung" (KWIH, Kaiser Wilhelm Institute for Brain Research) [ Today, the KWIH is known as the Max-Planck Institut für Hirnforschung, [http://www.mpih-frankfurt.mpg.de/global/menue/profil.htm MPIH] . All of the Kaiser Wilhelm Institutes were named after Max Planck after World War II. ] in Berlin-Buch. Zimmer worked in N. V. Timofeev-Resovskij’s [”Николай Владимирович Тимофеев-Ресовский” transliterated, from a one-to-one American English convention on the Cyrillic alphabet, becomes “Nikolaj Vladimirovich Timofeev-Resovskij”.] Genetics Department [ H. J. Born, N. W. Timoféeff-Ressovsky and K. G. Zimmer "Biologische Anwendungen des Zählrohres", "Naturwissenschaften" Volume 30, Number 40, 600-603 (1942). The authors were identified as being in the Genetics Department of the Kaiser Wilhelm Institute in Berlin-Buch.] at the KWIH. Timofeev-Resovskij, a citizen of the Soviet Union, worked in Germany starting in 1924, [ Aleksandr I. Solzhenitsyn, translated from the Russian by Thomas P. Whitney "The GULAG Archipelago 1918-1956, An Experiment in Literary Investigation, I-II" 634 (Harper and Row, 1973, 1974).] and he stayed even after Adolf Hitler came to power in 1933. [ Riehl and Seitz, 1996, 25.] Very early in Zimmer’s career, in 1935, he published the major work, "Über die Natur der Genmutation und der Genstruktur", with Timofeev-Resovskij, and Max Delbrück; it was considered to be a major advance in understanding the nature of gene mutation and gene structure. [ Timofeeff-Ressovky, N. W., K. G. Zimmer, and M. Delbrück "Über die Natur der Genmutation und der Genstruktur" (Weidmannsche Buchhandlung, 1935). [http://www.ini.uzh.ch/~tobi/fun/max/timofeeffZimmerDelbruck1935.pdf Nachrichten Göttingen] - "Über die Natur der Genmutation und der Genstruktur" (1935).] At "Auergesellschaft", Zimmer collaborated with Nikolaus Riehl, director of scientific research at the works. [ N. Riehl, N. V. Timofeev-Resovskij, and K. G. Zimmer "Mechanismus der Wirkung ionisierender Strahlen auf biologische Elementareinheiten", "Die Naturwissenschaften" Volume 29, Numbers 42-43, 625-639 (1941). Riehl was identified as being in Berlin, and the other two were identified as being in Berlin-Buch.]

At the close of World War II, Russia had special search teams operating in Austria and Germany, especially in Berlin, to identify and “requisition” equipment, materiel, intellectual property, and personnel useful to the Soviet atomic bomb project. The exploitation teams were under the Russian Alsos and they were headed by Lavrenij Beria’s deputy, Colonel General A. P. Zavenyagin. These teams were composed of scientific staff members, in NKVD officer’s uniforms, from the bomb project’s only laboratory, Laboratory No. 2, in Moscow. In mid-May 1945, the Russian nuclear physicists Georgy Flerov and Lev Artsimovich, in NKVD colonel’s uniforms, compelled Zimmer to take them to the location of Riehl and his staff, who had evacuated their "Auergesellschaft" facilities and were west of Berlin, hoping to be in an area occupied by the American or British military forces. Riehl was detained at the search team’s facility in Berlin-Friedrichshagen for a week. This sojourn in Berlin turned into 10 years in the Soviet Union! Riehl and his staff, including their families, were flown to Moscow on 9 July 1945. Riehl was to head up a uranium production group at Plant No. 12 in Ehlektrostal’ (Электросталь [”Электросталь” is sometimes transliterated as “Elektrostal”. A one-to-one transliteration scheme transliterates the Cyrillic letter “Э” as “Eh”, which distinguishes it from that for the Cyrillic letter “Е” given as “E”. Transliterations often also drop the soft sign “ь”.] ). [ Riehl and Seitz, 1996, 71-72.] [ Oleynikov, 2000, 7.]

In Russia

From 1945 to 1950, Riehl was in charge of uranium production at Plant No. 12 in Ehlektrostal'. When Riehl learned that Hans-Joachim Born and Karl Zimmer were being held in Krasnogorsk, in the main PoW camp for Germans with scientific degrees, Riehl arranged though Zavenyagin to have them sent to Ehlektrostal’. Alexander Catsch was also sent there. At Ehlektrostal’, Riehl had a hard time incorporating Born, Catsch, and Zimmer into his tasking on uranium production, as Born was a radiochemist, Catsch was a physician and radiation biologist, and Zimmer was a physicist and radiation biologist. [ Riehl and Seitz, 1996, 2, 31, 71, 83, 89-104, 121-128, and 202.] [ Maddrell, 2006, 179-180, 186, 189, and 210-221.] [ Oleynikov, 2000, 11, and 15-16.]

After the detonation of the Russian uranium bomb, uranium production was going smoothly and Riehl’s oversight was no longer necessary at Plant No. 12. Riehl then went, in 1950, to head an institute in Sungul', where he stayed until 1952. Essentially the remaining personnel in his group were assigned elsewhere, with the exception of H. E. Ortmann, A. Baroni (PoW), and Herbert Schmitz (PoW), who went with Riehl. However, Riehl had already sent Born, Catsch, and Zimmer to the institute in December 1947. The institute in Sungul’ was responsible for the handling, treatment, and use of radioactive products generated in reactors, as well as radiation biology, dosimetry, and radiochemistry. The institute was known as Laboratory B, and it was overseen by the 9th Chief Directorate of the NKVD (MVD after 1946), the same organization which oversaw the Russian Alsos operation. The scientific staff of Laboratory B – a ShARAShKA – was both Soviet and German, the former being mostly political prisoners or exiles, although some of the service staff were criminals. [ Riehl and Seitz, 1996, 121-128, and 202.] [ Oleynikov, 2000, 15-17.] (Laboratory V, in Obninsk, headed by Heinz Pose, was also a sharashka and working on the Soviet atomic bomb project. Other notable Germans at the facility were Werner Czulius, Hans Jürgen von Oertzen, Ernst Rexer, and Carl Friedrich Weiss. [Polunin, V. V. and V. A. Staroverov "Personnel of Special Services in the Soviet Atomic Project 1945 – 1953" [In Russian] [http://www.fsb.ru/history/autors/polunin.html (FSB, 2004)] .] )

Laboratory B was known under another cover name [ The Russians used various types of cover names for facilities to obfuscate both the location and function of a facility; in fact, the same facility could have multiple and changing designations. The nuclear design bureau and assembly plant Arzamas-16, for example, had more than one designation – see Yuli Khariton and Yuri Smirnov "The Khariton Version", "Bulletin of the Atomic Scientist", 20-31 (May 1993). Some facilities were know by post office box numbers, "почтовом ящике" (pochtovom yashike), abbreviated as "п/я". See Maddrell, 2006, 182-183. Also see Demidov, A. A. "On the tracks of one “Anniversary”" [In Russian] [http://www.sarov.info/index.php?ch=ngn&id=4871&view=article&prevview=arc&year=2005&month=8 11.08.2005] , which relates the history changing post office box designations for Arzamas-16.] as "Объект 0211" (Ob’ekt 0211, Object 0211), as well as Object B. [ Timofeev-Resovskij, N. V. "Kratkaya Avtobiograficheskaya Zapiska" ("Brief Autobiographical Note") [http://www.jinr.ru/drrr/Timofeeff/auto/auto_r.html (14 October 1977)] .] ["“Я ПРОЖИЛ СЧАСТЛИВУЮ ЖИЗНЬ” К 90-летию со дня рождения Н. В. Тимофеева-Ресовского (“I Lived a Happy Life” – In Honor of the 90th Anniversary of the Birth of Timofeev-Resovskij", "ИСТОРИЯ НАУКИ. БИОЛОГИЯ (History of Science – Biology)", 1990, № 9, 68-104 [http://www.ihst.ru/projects/sohist/papers/priroda/1990/9/68-104.pdf (1990)] . This commemorative has many photographs of Timofeev-Resovskij.] [Ratner, V. A. "Session in Memory of N. V. Timofeev-Resovskij in the Institute of Cytology and Genetics of the Siberian Department of the Russian Academy of Sciences" [In Russian] , "Vestnik VOGis" Article 4, No. 15 [http://www.bionet.nsc.ru/vogis/vestnik.php?f=2000&p=15_4 (2000)] .] [ Izvarina, E. "Nuclear project in the Urals: History in Photographs" [In Russian] "Nauka Urala" Numbers 12-13, June [http://www.ch70.chel.su/newsview.phtml?id=20060601_01 2000] .] (In 1955, Laboratory B was closed. Some of its personnel were transferred elsewhere, but most of them were assimilated into a new, second nuclear weapons institute, Scientific Research Institute-1011, NII-1011, today known as the Russian Federal Nuclear Center All-Russian Scientific Research Institute of Technical Physics, RFYaTs–VNIITF. NII-1011 had the designation "предприятие п/я 0215", i.e., enterprise post office box 0215 and "Объект 0215"; the latter designation has also been used in reference to Laboratory B after its closure and assimilation into NII-1011. [ Sulakshin, S. S. (Scientific Editor) "Social and Political Process of Economic Status of Russia" [In Russian] [http://old.rusrand.ru/netcat_files/183_8.pdf 2005] .] [ [http://www.ch70.chel.su/creators.phtml RFYaTS-VNIITF Creators] – See the entry for "УРАЛЕЦ Александр Константинович" (URALETs Aleksandr Konctantinovich) [In Russian] .] [ [http://www.ch70.chel.su/creators.phtml RFYaTS-VNIITF Creators] – See the entry for "ТИМОФЕЕВ-РЕСОВСКИЙ Николай Владимирович " (TIMOFEEV-RESOVSKIJ Nikolaj Vladimorovich) [In Russian] .] [ Penzina, V. V. "Archive of the Russian Federal Nuclear Centre of the All-Russian Scientific Research Institute of Technical Physics, named after E. I. Zababakhin. Resource No. 1 – Laboratory "B"." [In Russian] ( [http://chelarhiv.ru/vestnik/8/ayd.html VNIITF] ). Penzina is cited as head of the VNIITF Archive in Snezhinsk.] )

One of the political prisoners in Laboratory B was Riehls’ colleague from the KWIH, N. V. Timofeev-Resovskij, who, as a Soviet citizen, was arrested by the Soviet forces in Berlin at the conclusion of the war, and he was sentenced to 10 years in the Gulag. In 1947, Timofeev-Resovskij was rescued out of a harsh Gulag prison camp, nursed back to health, and sent to Sungul' to complete his sentence, but still make a contribution to the Soviet atomic bomb project. At Laboratory B, Timofeev-Resovskij headed a biophysics research department, in which Born, Catsch, and Zimmer were able to conduct work similar to that which they had done in Germany, and all three became section heads in Timofeev-Resovskij’s department. [ Riehl and Seitz, 1996, 121-128, and 202.] [ Oleynikov, 2000, 15-17.] [ Penzina, V. V. "Archive of the Russian Federal Nuclear Centre of the All-Russian Scientific Research Institute of Technical Physics, named after E. I. Zababakhin. Resource No. 1 – Laboratory "B"." [In Russian] ( [http://chelarhiv.ru/vestnik/8/ayd.html VNIITF] ). Penzina is cited as head of the VNIITF Archive in Snezhinsk.]

Before being rejoined in the Soviet Union, Zimmer, Timofeev-Resovskij, and Riehl had collaborated on the biological effects of ionizing radiation. [ N. Riehl, N. V. Timofeev-Resovskij, and K. G. Zimmer "Mechanismus der Wirkung ionisierender Strahlen auf biologische Elementareinheiten", "Die Naturwissenschaften" Volume 29, Numbers 42-43, 625-639 (1941). Riehl was identified as being in Berlin, and the other two were identified as being in Berlin-Buch.] Also, Zimmer and Timofeev-Resovskij had put together a manuscript which was a comprehensive summary of their work and that of others on radiation-induced gene mutation and related areas; the book, "Das Trefferprinzip in der Biologie", was published in Germany while they were in the Soviet Union. [ Nikolaj V. Timofeev-Ressovskij and Karl Günter Zimmer "Biophysik. Bd. 1. Das Trefferprinzip in der Biologie" (Hirzel, 1947).] In 1948, due to Lysenkoism, there were grave consequences for the institute in Sungul' in general and for Zimmer and Timofeev-Resovskij in particular. The book was put on a forbidden list and the laboratory was not allowed to conduct research on its topics. Since the book represented many years of Zimmer’s life’s work, he was rather downcast by the circumstances. [ Riehl and Seitz, 1996, 202.]

In preparation for release from the Soviet Union, it was standard practice to put personnel into quarantine for a few years if they worked on projects related to the Soviet atomic bomb project, as was the case for Zimmer. Additionally, in 1954, the Deutsche Demokratische Republik (DDR, German Democratic Republic) and the Soviet Union prepared a list of scientists they wished to keep in the DDR, due to their having worked on projects related to the Soviet atomic bomb project; this list was known as the “A-list”. On this A-list were the names of 18 scientists. Nine, possibly 10, of the names were associated with the Riehl group which worked at Plant No. 12 in Ehlektrostal'. Born, Catsch, Riehl, and Zimmer were on the list. [ The A-list prepared by East Germany and the Soviet Union in 1954 had 18 names on it. These Germans were to be encouraged to stay in East Germany, as they had done work on the Soviet atomic bomb project. At least nine members worked in Riehl’s group at Ehlektrostal’:
*Hans-Joachim Born, Alexander Catsch, Werner Kirst, Przybilla, Nikolaus Riehl, Herbert Thieme, Tobein, Günter Wirths, and Karl Zimmer.
*Schmidt may be may be a tenth Riehl group member Herbert Schmitz, or the name may refer to Fritz Schmidt, another nuclear scientist who was returned to Germany. Others on the list were:
*Heinz Barwich, Justus Mühlenpfordt, and Karl-Franz Zühlke, who all worked at Institute G headed by Gustav Hertz,
*Ingrid Schilling and Alfred Schimohr, who both worked at Institute A headed by Manfred von Ardenne,
*Willi Lange, Gerhard Siewert, and Ludwig Ziehl.See Maddrell, 2006, 179-180.] [ Riehl and Seitz, 1996, 137-139.] [ Maddrell, 2006, 179-180.]

In West Germany

Upon Zimmer’s release from the Soviet Union in 1955, he eventually went to West Germany under legal circumstances, where he worked at the "Kernforschungszentrum Karlsruhe" (Karlsruhe Nuclear Research Center), founded in 1956 and later known as the "Forschungszentrum Karlsruhe". He became director of the "Instituts für Strahlenbiologie" (IStB, Institute for Radiation Biology). [ [http://www.lib.utk.edu/spcoll/manuscripts/ms0839fa.html Zimmer Papers] – University of Tennessee.] [ [http://www.fzk.de/fzk/idcplg?IdcService=FZK&node=4230 Forschungszentrum Karlsruhe] ]

Internal Report

The following was published in "Kernphysikalische Forschungsberichte" ("Research Reports in Nuclear Physics"), an internal publication of the German " Uranverein". Reports in this publication 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. [ Hentschel and Hentschel, 1996, Appendix E; see the entry for "Kernphysikalische Forschungsberichte".] [ Walker, 1993, 268.]

*Karl G. Zimmer "Bericht über die Untersuchungen der relativen Wirksamkeit von Röntgenstrahlen und schnellen Neutronen bezügl. der Erzeugung von Chromosomenmutationen". G-297. [ Walker, 1993, 274.]

elected Literature

The majority of these literature citations have been garnered by searching on variations of the author’s name on [http://www.google.com/ Google] , [http://scholar.google.com/ Google Scholar] , and the [http://www.osti.gov/energycitations/ Energy Citations Database] , and use of a bibliography of [http://www.jinr.ru/~drrr/Timofeeff/auto/biblio_e.html N. V. Timofeev-Resovskij] provided by the Laboratory of Radiation Biology of the JINR, Dubna.

*N. W. Timofeeff-Ressovsky and K. G. Zimmer "Ein Beitrag zur Frage nach der Beziehung zwischen Röntgenstrahlendosis und dadurch ausgelöster Mutationsrate", "Strahlentherapie" Volume 51 (1934)

* Timofeeff-Ressovky, N. W., K. G. Zimmer, and M. Delbrück "Über die Natur der Genmutation und der Genstruktur", "Nachrichten von der Gesellschaft der Wissenschaften zu Göttingen: Mathematische-Physikalische Klasse, Fachgruppe VI, Biologie" Bd. 1, Nr. 13, 189-245 [http://www.ini.uzh.ch/~tobi/fun/max/timofeeffZimmerDelbruck1935.pdf (1935)] . Timofeeff-Ressovsky was identified as being from the "Genetische Abteilung des Kaiser-Wilhelm-Instituts für Hirnforschung" in Berlin-Buch. Zimmer was identified as being from the "Strahlenabteilung des Cecilienhauses" in Berlin-Charlottenburg. Delbrück was identified as being from the "Physikalische-Radioaktive Abteilung des Kaiser-Wilhelm-Instituts für Chemie" in Berlin-Dahlem. This paper, from the color of the journal’s cover, has become known as the “Green Pamphlet” [ Ratner, Vadim A. "Nikolay Vladimirovich Timofeeff-Ressovsky (1900-1981): Twin of the Century of Genetics", "Genetics" Volume 158, 933-939 [http://www.genetics.org/cgi/content/full/158/3/933 (July 2001)] .] and sometimes as the "Dreimännerarbeit" (Three-Man Paper) of genetics, [ Daniel J. McKaughan "The Influence of Niels Bohr on Max Delbrück: Revisiting the Hopes Inspired by “Light and Life”", "ISIS" Volume 96, 507-529 [http://www.nd.edu/~hps/McKaughan.pdf (2005)] .] to distinguish it from the historical "Dreimännerarbeit" by Max Born, Werner Heisenberg, and Pascual Jordan, which launched quantum matrix mechanics in 1925. [ M. Born, W. Heisenberg, and P. Jordan, "Zur Quantenmechanik II", "Zeitschrift für Physik", 35, 557-615, 1925 (received November 16, 1925). [English translation in: B. L. van der Waerden, editor, "Sources of Quantum Mechanics" (Dover Publications, 1968) ISBN 0-486-61881-1] .]

*N. W. Timofeeff-Ressovsky and K. G. Zimmer "Strahlengenetische Zeitfaktorversuche an Drosophila melanogastery", "Strahlentherapie" Volume 53, 134-138 (1935)

*N. W. Timofeeff-Ressovsky and K. G. Zimmer "Wellenlangenunabhangigkeit der mutationsauslösenden Wirkung der Röntgen und Gammastrahlung bei Drosophila melanogaster", "Stranlentherapie" Volume 54, 265-278 (1935)

*K. G. Zimmer and N. W. Timofeeff-Ressovsky "Auslösung von Mutationen bei Drosophila melanogaster durch a Teilchen nach Emanationseinatmung", "Strahlentherapie" Volume. 55, 77-84 (1936)

*A. Pickhan, N. W. Timofeeff-Ressovsky, and K. G. Zimmer "Versuche an Drosophila melanogaster über die Beeinflussung der mutationsauslosenden Wirkung von Röntgen- und Gammastrahlen durch hochfrequenzfeld und Äthernarkoze", "Strahlentherapie" Volume 56, 488-496 (1936)

*E. Wilhelmy, N. W. Timofeeff-Ressovsky, and K. G. Zimmer "Einige Strahlengenetische Versuche mit Sehr weichen Röntgenstrahlen an Drosophila melanogaster", "Strahlentherapie" Volume 57, 521-531 (1936)

*K. G. Zimmer, H. D. Griffith, and N. W. Timofeeff-Ressovsky "Mutationsauslösung durch Betastrahlung des Radiums bei Drosophila melanogaster", "Strahlentherapie" Volume 59, 130-138 (1937)

*K. G. Zimmer and N. W. Timofeeff-Ressovsky "Dosimetrische und strahlenbiologischeversuche mit schnellen Neutronen II", "Strahlentherapie" Volume 63, 528-536 (1938)

*N. W. Timofeeff-Ressovsky and K. G. Zimmer "Neutronenbestrahlungsversuche zur Mutationsauslosung an Drosophila melanogaster", "Naturwissenschaften" Volume 26, # 21-22, 362-365 (1938)

*N. W. Timofeeff-Ressovsky, K. G. Zimmer, F. A. and Heyn "Auslösung von Mutationen an Drosophila melanogaster durch schnelle Li+D-Neutronen", "Naturwissenschaften" Volume 26, # 7, 108-109 (1938)

*N. W. Timofeeff-Ressovsky and K. G. Zimmer "Strahlengenetik", "Strahlentherapie" Volume 66, 684-711 (1939)

*K. G. Zimmer and N. W. Timofeeff-Ressovsky "Note on the biological effects of densely ionizing radiation", "Phys. Rev. " Volume 55, 411 (1939)

*N. Riehl, N. V. Timofeev-Resovskij, and K. G. Zimmer "Mechanismus der Wirkung ionisierender Strahlen auf biologische Elementareinheiten", "Die Naturwissenschaften" Volume 29, Numbers 42-43, 625-639 (1941). Riehl was identified as being in Berlin, and the other two were identified as being in Berlin-Buch.

*N. W. Timofeeff-Ressovsky and K. G. Zimmer "Über Zeitproportionalität und Temperaturabhängigkeit der spontanen Mutationsrate von Drosophila", "Z. Ind. Abst. Verebl." Volume 79, # 4, 530-537 (1941)

*H. J. Born, N. W. Timofeeff-Ressovsky, and K. G. Zimmer "Anwendungen der Neutronen und der künstlich radioaktiven Stoffe in Chemie und Biologe", "Umschau" Volume 45, # 6, 83-87 (1941)

*H. J. Born, N. W. Timoféeff-Ressovsky and K. G. Zimmer "Biologische Anwendungen des Zählrohres", "Naturwissenschaften" Volume 30, Number 40, 600-603 (1942). The authors were identified as being in the Genetics Department of the Kaiser Wilhelm Institute in Berlin-Buch.

*N. W. Timofeeff-Ressovsky and K. G. Zimmer "Über einige physikalische Vorgange bei der Auslösung von Genemutationen durch Strahlung", "Z. Ind. Abst. Verebl." Volume 80, # 3, 353-372 (1942)

*N. Riehl, R. Rompe, N. W. Timoféeff-Ressovsky und K. G. Zimmer "Über Energiewanderungsvorgänge und Ihre Bedeutung Für Einige Biologische Prozesse", "Protoplasma" Volume 38, Number 1, 105-126 (1943). The article was received on 19 April 1943.

*K. G. Zimmer and N. W. Timofeeff-Ressovsky "Nachtrag zu der Arbeit über einige physikalische Vorgange bei der Auslösung von Mutationen", "Z. Ind. Abst. Vererbl." Volume 80, # 4 (1943)

*N. W. Timofeeff-Ressovsky and K. G. Zimmer "Strahlengenetik", "Strahlentherapie" Volume 74, 183-211 (1944)

*N. W. Timofeeff-Resovsky and K. G. Zimmer "Über die Indeterminiertheit und die Verstarkererscheinungen in der Biologie", "Naturwissenschaften" Volume 32 (1945)

* A. Catsch, K. G. Zimmer, and O. Peter "Radio-Biological Research with Fast Neutrons" [In German] , "Zeitschrift für Naturforschung B: Anorg. Chem., Org. Chem., Biochem., Biophys." Volume 2, 1-5 (1947)

*N. W. Timofeeff-Ressovsky, K. G. Zimmer, and P. Jordan "Über einige physikalische Vorgange bei der Auslösung von Genemutationen durch Strahlung. II. Auslösung von Genemutationen durch Strahlung", "Z. Ind. Abst. Vererbl." Volume 82, # 1, 67-73 (1948)

* G. I. Born (H. J. Born), N. Riehl, K. G. Zimmer, Title translated from the Russian: "Efficiency of Luminescence Production by Beta Rays in Zinc Sulfide", "Doklaky Akademii Nauk S.S.S.R. " Volume 59, March, 1269-1272 (1948)

*K. G. Zimmer "On Strongly Absorbing Materials for Radiation Protection" [In German] , "Fortschr. Gebiete Röntgenstrahlen vereinigt mit Röntgenpraxis" Volume 71, 143-144 (1949)

*I. M. Rosman and K. G. Zimmer "The Use of Scintillators in Dosimetry" [In German] , "Zeitschrift für Naturforschung B: Anorg. Chem., Org. Chem., Biochem., Biophys., " Volume 11B, 46-52 (1956)

*I. M. Rosman and K. G. Zimmer "An Isodose Plotter of Simple Design", "Brit. J. Radiol." Volume 29, 688 (1956)

*K. G. Zimmer "Problems of Neutron Dosimetry" [In German] , "Strahlentherapie" Volume 101, 143-151 (1956)

*L. Ehrenberg and K. G. Zimmer "Action of Ionizing Radiation on Insulating Plastics", "Acta Chemica Scandinavica" Volume 10, Number 5, 874-875 (1956). Institutional affiliations: Univ. of Stockholm, Sweden; Max-Planck-Institut für physikalische Chemie, Göttingen, Germany.

*K. G. Zimmer "The Atomic Research Center-Karlsruhe" [In German] , "Atomwirtschaft, Atomtech." Volume 2, 434-435 (1957). Institutional affiliation: Institute for Radiation Protection and Radiation Biology.

*K. G. Zimmer, L. Ehrenberg, and A. Ehrenberg "Determination of Magnetic Centers in Irradiated Biological Media and Their Importance in Radiobiology" [In German] , "Strahlentherapie", Volume 103, 3-15 (1957)

*K. G. Zimmer "Development and Present State of Hypothesis Formation in Quantitative Radiation Bilogy" [In German] , "Naturwissenschaften" Volume 45, 325-327 (1958). Institutional affiliation:Universität Heidelberg; Institut für Strahlenbiologie an der Reaktorstation, Karlsruhe, Germany.

*I. M. Rozman and K. G. Zimmer "The Damage to Plastic Scintillators by Ionizing Radiations", "Int. J. Applied Radiation and Isotopes" Volume 3, 36-42 (1958)

*I. M. Rozman and K. G. Zimmer "On the Use of Plastic Scintillators for Dose Measurements", "Int. J. Appl. Radiation and Isotopes" Volume 3, 43-44 (1958)

*K. G. Zimmer "Evidence for Free-Radical Production in Living Cells Exposed to Ionizing Radiation", "Radiation Research" Supplement 1, 519-529 (1959). Institutional affiliation: Universität Heidelberg, Germany; Reactor-Station Karlsruhe, Heidelberg and Karlsruhe, Germany.

*A. Muller and K. G. Zimmer "Some Application Possibilities of Microwave Spectroscopy in Quantitative Radiation Biology" [In German] , "Strahlentherapie" Volume 109, 192-199 (1959). Institutional affiliation: Reaktorstation, Karlsruhe, Germany.

*A. Muller, G. Hotz, and K. G. Zimmer "Electron Spin Resonance in Bacteriophage: Alive, Dead, and Irradiated", "Biochem. Biophys. Research Communs." Volume 4, 214-217 (1961). Institutional affiliation: Nuclear Research Center, Karlsruhe, Germany.

*A. Müller, G. Hotz, and K. G. Zimmer "Kernforschungszentrum Karlsruhe. Sonderabdrucke. 73. Elektronischer Paramagnetismus in Bakteriophagen", Reprint from "Zeitschrift für Naturforschung" Volume 16b, Number 10, 658-662 [http://bibliothek.fzk.de/zb/kfk-berichte/KFK0073.pdf (1961)] . Institutional affiliation: Institut für Strahlenbiologie, Kernforschungszentrum Karlsruhe, Germany.

*K. G. Zimmer "Electron Spin Resonances in Biological Systems and Influencing by Radiation and Surrounding Gases" [In German] , "Strahlentherapie, Sonderbände" Volume 51, 46-57 (1962). Institutional affiliation: Kernforschungszentrum, Karlsruhe, Germany.

*K. G. Zimmer, W. Köhnlein, G. Hotz, and A. Muller "Electron Spin Resonance in Irradiated Bacteriophages and Their Constituents. Part I" [In German] , "Strahlentherapie" Volume 120, 161-190 (1963). Institutional affiliation: Kernforschungszentrum, Karlsruhe, Germany.

*A. Muller, W. Köhnlein, and K. G. Zimmer "X-Ray-Induced unpaired Spins in Nucleic Acid Bases and in 5-bromouracil", "Journal of Molecular Biology (England)" Volume 7, 92-94 (1963). Institutional affiliation: Kernforschungszentrum, Karlsruhe, Germany.

*G. Hotz and K. G. Zimmer "Experiments in Radiation Chemistry of T1-Phage", "Int. J. Radiation Biology"; Volume 7, 75-86 [http://bibliothek.fzk.de/zb/kfk-berichte/KFK0206.pdf (1963)] . Institutional affiliation: Kernforschungszentrum, Karlsruhe, Germany.

*K. G. Zimmer "Contribution to the Radiobiological Basis of the Maximum Permissible Radiation Dose" [In German] , "Nukleonik (West Germany)" Volume 7, 380-383 (1965). Institutional affiliation: Kernforschungszentrum, Karlsruhe, Germany.

*K. G. Zimmer "Some Unusual Topics in Radiation Biology", "Radiation Research (U.S.)" Volume 28, 830-843 (1966). Institutional affiliation: Kernforschungszentrum, Karlsruhe, Germany.

*F. Dauch, U. Apitzsch, A. Catsch, and K. G. Zimmer "RBE of Fast Neutrons by the Release of Mutations in Drosophila Melanogaster" [In German] , "Mutation Research (Netherlands)" Volume 3, 185-193 (1966). Institutional affiliation: Kernforschungszentrum, Karlsruhe, Germany.

*K. G. Zimmer "From Target-Theory to Molecular Radiobiology", "Journal: Phys. Med. Biol." Volume 14, 545-553 (1969). Organizational affiliation: Kernforschungszentrum, Karlsruhe, Germany.

*Zimmer, K. G. " Alexander Catsch's 60th anniversary" [In German] , "Strahlentherapie" Volume 145, Number 2, 238-239 (1973)

*H. Jung and K. G. Zimmer "Physical and biological parameters of interest for evaluating the possible use of pi-mesons, neutrons and charged particles in radiotherapy" [In German] , "Röntgen Bl.", Volume 27, Number 8, 381-402 (1974). Organizational affiliations: Universität Hamburg, Institut für Biophysik und Strahlenbiologie; Kernforschungszentrum, Karlsruhe, Inst. für Strahlenbiologie.

*K. G. Zimmer "Easy way to calculate the mean length of trajectories through bodies of given shape", "Int. J. Radiation Biology", Volume 25, Number 3, 313 (1974). Institutional affiliation: Kernforschungszentrum, Karlsruhe, Germany.

Publications of the KFK

*K. G. Zimmer "Kernforschungszentrum Karlsruhe. Sonderabdrucke. 27. Studien Zur Quantitativen Strahlenbiologie" (Gesellschaft für Kernforschung m.b.H., [http://bibliothek.fzk.de/zb/kfk-berichte/KFK0027.pdf 1960] ). Institutional affiliation: "Institut für Strahlenbiologie".

*Gerhart Hotz, Adolf Müller and Karl Günter Zimmer "Kernforschungszentrum Karlsruhe. Sonderabdrucke. 145. Elektron-Spin-Resonanzen in Bakteriophagen " (Gesellschaft für Kernforschung m.b.H., [http://bibliothek.fzk.de/zb/kfk-berichte/KFK0145.pdf 1962] ). Institutional affiliation: "Institut für Strahlenbiologie".

Books

*Nikolaj V. Timofeev-Ressovskij and Karl Günter Zimmer "Biophysik. Bd. 1. Das Trefferprinzip in der Biologie" (Hirzel, 1947)

*Karl Günter Zimmer "Studien zur quantitativen Strahlenbiologie" (Steiner 1960)

*Karl Günter Zimmer "Studien zur quantitativen Strahlenbiologie (Abhandlungen der Math-Naturw. Klasse, Jg. 1960, Nr. 3)" (Verlag der Akademie der Wissenschaften und der Literatur, 1960)

*Karl Günter Zimmer "Studies on quantitative radiation biology" (Oliver and Boyd, 1961)

*Karl Günter Zimmer "Studies on quantitative radiation biology" (Hafner)

Bibliography

* A. Catsch "60th anniversary of K.G. Zimmer" [In German] , "Strahlentherapie" Volume 142, Number 1, 124-5 (1971)

*Hentschel, Klaus (editor) and Ann M. Hentschel (editorial assistant and translator) "Physics and National Socialism: An Anthology of Primary Sources" (Birkhäuser, 1996) ISBN 0-8176-5312-0

*Herrlich, Peter "Karl Gunther Zimmer (1911-1988)" "Radiation Research" Volume 116, Number 1, 178-180 (1988)

*Maddrell, Paul "Spying on Science: Western Intelligence in Divided Germany 1945–1961" (Oxford, 2006) ISBN 0-19-926750-2

*Oleynikov, Pavel V. "German Scientists in the Soviet Atomic Project", "The Nonproliferation Review" Volume 7, Number 2, 1 – 30 [http://cns.miis.edu/pubs/npr/vol07/72/72pavel.pdf (2000)] . The author has been a group leader at the Institute of Technical Physics of the Russian Federal Nuclear Center in Snezhinsk (Chelyabinsk-70).

* Riehl, Nikolaus and Frederick Seitz "Stalin’s Captive: Nikolaus Riehl and the Soviet Race for the Bomb" (American Chemical Society and the Chemical Heritage Foundations, 1996) ISBN 0-8412-3310-1.

*Walker, Mark "German National Socialism and the Quest for Nuclear Power 1939–1949" (Cambridge, 1993) ISBN 0-521-43804-7

External links

* [http://www.mdc-berlin.de/ueber_das_mdc/00102c_.htm MDC] – Max-Delbrück-Centrum für Molekulare Medizin, Berlin-Buch (In English: [http://www.mdc-berlin.de/englisch/about_the_mdc/history.htm MDC, English] )
* [http://www.mpih-frankfurt.mpg.de/global/menue/profil.htm MPIH] – Max-Planck Institut für Hirnforschung (Formerly the Kaiser-Wilhelm Institut für Hirnforschung)
* [http://www.ini.uzh.ch/~tobi/fun/max/timofeeffZimmerDelbruck1935.pdf Nachrichten Göttingen] - "Über die Natur der Genmutation und der Genstruktur" (1935)
* [http://www.onmeda.de/lexika/persoenlichkeiten/ressovsky.html Timoféeff-Ressovsky] - Onmedia
* [http://www.lib.utk.edu/spcoll/manuscripts/ms0839fa.html Zimmer Papers] – University of Tennessee

ee also

*Russian Alsos

Notes