Karl Zimmer Explained

Karl Zimmer
Birth Date:12 July 1911
Birth Place:German Empire
Death Place:West Germany (present day, Germany)
Siglum:K. G. Zimmer
Nationality:German
Fields:Nuclear chemistry
Workplaces:Auergesellschaft AG
Kaiser Wilhelm Society
Plant No. 12 in Elektrostal
Karlsruhe Research Center
Thesis Title:On the topics in Photochemistry (varies)
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Thesis Year:1939
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Known For:Radiobiology
Soviet program of nuclear weapons
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Karl Günter Zimmer (12 July 1911  - 29 February 1988) was a German nuclear chemist who is best known for his work in understanding the ionizing radiation on Deoxyribonucleic acid (DNA) and did fundamental work on radiation biology.[1]

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.[2]

From 1945–1955, Zimmer was one of many German nuclear scientists in the former Soviet program of nuclear weapons but left Russia to eventually settle in Germany.[3]

Biography

Education and career

There is little or no information available about his early life but it is known that Zimmer obtained his doctorate in 1934 with a thesis on photochemistry from the sources provided by University of Tennessee.[4] [5]

Early on, Zimmer worked as an advisor in radiotherapeutic physics in a radiological hospital and as an employee of Auergesellschaft AG in Berlin.[4] However, he completed most of his theoretical work at the Kaiser-Wilhelm Gesellschaft's Institut für Hirnforschung (lit. Kaiser Wilhelm Institute for Brain Research (KWIH)) in Berlin-Buch.[6] Zimmer worked in Nikolay Timofeev-Resovskij's genetics department at the KWIH.[7] [8] Timofeev-Resovskij, a Russian national with Soviet citizenship, worked in Germany starting in 1924, and he stayed even after Adolf Hitler's party came to power in 1933.[9] [10] 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.[11] At Auergesellschaft, Zimmer collaborated with Nikolaus Riehl, director of scientific research at the works.[12]

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 program of nuclear weapons. 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 physicists Georgy Flerov and Lev Artsimovich, in NKVD colonel's uniforms, identified Zimmer and compelled him 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 former Soviet Union for 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[13]).[14] [15]

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.[16] [17] [18]

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.[19] [20] (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.[21])

Laboratory B was known under another cover name[22] as Объект 0211 (Ob'ekt 0211, Object 0211), as well as Object B.[23] [24] [25] [26] (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.[27] [28] [29] [30])

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.[19] [20] [30]

Before being rejoined in the Soviet Union, Zimmer, Timofeev-Resovskij, and Riehl had collaborated on the biological effects of ionizing radiation.[12] 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.[31] 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.[32]

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.[33] [34] [35]

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.[36]

He became director of the Instituts für Strahlenbiologie (IStB, Institute for Radiation Biology).[4] [37]

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.[38] [39]

Selected publications

The majority of these literature citations have been garnered by searching on variations of the author's name on Google, Google Scholar, and the Energy Citations Database, and use of a bibliography of N. V. Timofeev-Resovskij provided by the Laboratory of Radiation Biology of the JINR, Dubna.

Publications of the KFK

Books

See also

References

External links

Notes and References

  1. Book: Bibliographies of Interest to the Atomic Energy Program . 1962 . 13 May 2024 . en.
  2. Book: Genetics . 1966 . en.
  3. Book: Ings . Simon . Stalin and the Scientists: A History of Triumph and Tragedy, 1905–1953 . 21 February 2017 . Open Road + Grove/Atlantic . 978-0-8021-8986-8 . 13 May 2024 . en.
  4. http://www.lib.utk.edu/spcoll/manuscripts/ms0839fa.html Zimmer Papers
  5. Herrlich, 1988, 178.
  6. Today, the KWIH is known as the Max-Planck Institut für Hirnforschung, MPIH . All of the Kaiser Wilhelm Institutes were named after Max Planck after World War II.
  7. "Николай Владимирович Тимофеев-Ресовский" transliterated, from a one-to-one American English convention on the Cyrillic alphabet, becomes "Nikolaj Vladimirovich Timofeev-Resovskij".
  8. 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.
  9. 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).
  10. Riehl and Seitz, 1996, 25.
  11. Timofeeff-Ressovky, N. W., K. G. Zimmer, and M. Delbrück "Über die Natur der Genmutation und der Genstruktur" (Weidmannsche Buchhandlung, 1935). Nachrichten Göttingen - "Über die Natur der Genmutation und der Genstruktur" (1935).
  12. 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.
  13. "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".
  14. Riehl and Seitz, 1996, 71-72.
  15. Oleynikov, 2000, 7.
  16. Riehl and Seitz, 1996, 2, 31, 71, 83, 89-104, 121-128, and 202.
  17. Maddrell, 2006, 179-180, 186, 189, and 210-221.
  18. Oleynikov, 2000, 11, and 15-16.
  19. Riehl and Seitz, 1996, 121-128, and 202.
  20. Oleynikov, 2000, 15-17.
  21. Polunin, V. V. and V. A. Staroverov Personnel of Special Services in the Soviet Atomic Project 1945  - 1953 [In Russian] (FSB, 2004) .
  22. 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 Scientists, 20-31 (May 1993). Some facilities were known 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] 11.08.2005, which relates the history changing post office box designations for Arzamas-16.
  23. [N. V. Timofeev-Resovskij|Timofeev-Resovskij, N. V.]
  24. "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 (1990). This commemorative has many photographs of Timofeev-Resovskij.
  25. 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 (2000).
  26. Izvarina, E. Nuclear project in the Urals: History in Photographs [In Russian] Nauka Urala Numbers 12-13, June 2000 .
  27. Sulakshin, S. S. (Scientific Editor) Social and Political Process of Economic Status of Russia [In Russian] 2005.
  28. http://www.ch70.chel.su/creators.phtml RFYaTS-VNIITF Creators
  29. http://www.ch70.chel.su/creators.phtml RFYaTS-VNIITF Creators
  30. 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] (VNIITF). Penzina is cited as head of the VNIITF Archive in Snezhinsk.
  31. Nikolaj V. Timofeev-Ressovskij and Karl Günter Zimmer Biophysik. Bd. 1. Das Trefferprinzip in der Biologie (Hirzel, 1947).
  32. Riehl and Seitz, 1996, 202.
  33. 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':

    Others on the list were:

    See Maddrell, 2006, 179-180.

  34. Riehl and Seitz, 1996, 137-139.
  35. Maddrell, 2006, 179-180.
  36. Book: McCarron . Michael Joseph . BattleSpace of Mind: AI and Cybernetics in Information Warfare . 29 February 2024 . TrineDay . 978-1-63424-425-1 . 13 May 2024 . en.
  37. http://www.fzk.de/fzk/idcplg?IdcService=FZK&node=4230 Forschungszentrum Karlsruhe
  38. Hentschel and Hentschel, 1996, Appendix E; see the entry for Kernphysikalische Forschungsberichte.
  39. Walker, 1993, 268.
  40. Walker, 1993, 274.
  41. Ratner, Vadim A. Nikolay Vladimirovich Timofeeff-Ressovsky (1900-1981): Twin of the Century of Genetics, Genetics Volume 158, 933-939 (July 2001).
  42. Daniel J. McKaughan The Influence of Niels Bohr on Max Delbrück: Revisiting the Hopes Inspired by "Light and Life", ISIS Volume 96, 507-529 (2005) .
  43. 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}}].

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