Ulrich Bonse

Ulrich Bonse (born September 25, 1928 in Münster ) is a German experimental physicist . He is a pioneer of X-ray - interferometry and the X-ray microtomography with synchrotron radiation .

life and work

Bonse attended the Paulinum humanistic grammar school in Münster, interrupted during World War II from service as an air force helper in the flak , and the modern language Hittorf grammar school in Sendenhorst and, for six months in 1948, an English school in Blandford . From 1949 he studied physics at the Westphalian Wilhelms University with a diploma in 1955 and a doctorate in 1958 under Eugen Kappler . In his dissertation he developed an X-ray crystallographic method for measuring the distortion fields of crystal defects in silicon and germanium , a research area that was very topical at the time due to the invention of the transistor. The dissertation was rated summa cum laude and was awarded a doctoral prize from the university and earned him international recognition and an invitation to a conference in the United States (St. Louis 1961). He became an assistant in Münster and completed his habilitation in 1963 on X-ray wave fields in the weakly deformed crystal field .

From 1963 to 1965 he was visiting professor at Cornell University (with John B. Newkirk). During this time he developed the first X-ray interferometer with Michael Hart (visiting scientist from Bristol) . In 1965 he received the Physics Prize of the German Physical Society for this .

In the same year he became a lecturer, soon afterwards (1967) scientific advice and 1969 adjunct professor in Münster. An offer to become an associate professor (with tenure) at the University of Kansas in 1965 after his time at Cornell University , he had to turn down because he had not received a visa.

In 1970 he became professor for experimental physics at the newly founded University of Dortmund , where he helped to build up the physics chair. The focus of his research in Dortmund was high-resolution imaging and microtomography with X-ray and neutron waves in the Angstrom range . In the X-ray area, synchrotron radiation sources at DESY and in Grenoble ( ESRF ) were used, and a neutron interferometer was built in the neutron area at the Laue-Langevin Institute in collaboration with Helmut Rauch (Vienna).

At the University of Dortmund he was institute director and dean as well as senator of the university. In 1990 he became Vice Rector for Research there. In 1993 Ulrich Bonse retired. In 1998 he became honorary senator of the University of Dortmund.

From 1997 to 2006, as chairman of the program committee, he organized a total of five times the SPIE conference series Developments in X-Ray Tomography, which he initiated . Even after his retirement from this activity, the series continues; Bonses successor as Conference Chair is the American physicist Stuart R. Stock.

In Dortmund he supervised 31 doctoral students (and one in Münster). One of his first doctoral students was Gerhard Materlik , who later became the founding director of the British synchrotron radiation source Diamond Light Source .

In 1987 he received an honorary doctorate from the Ludwig Maximilians University in Munich . In 2002 he received the X-ray badge from the city of Remscheid .

He has been married to Irmgard Rose since 1958, with whom he has seven children. Bonse is a member of the Catholic student associations Tuiskonia-Monasteria and K.St.V. Markomannia Münster in KV .

literature

• Prof. Dr. rer. nat. Dr. rer. nat. hc Ulrich Bonse . In: Valentin Wehefritz (Hrsg.): CVs from your own hand . Biographical archive of Dortmund university professors. No. 13 . Dortmund 2008, p. 4–35 ( tu-dortmund.de [PDF; 1.8 MB ; accessed on November 7, 2012]).

Individual evidence

1. ↑ Ulrich Bonse, Eugen Kappler: X-ray imaging of the distortion field of individual dislocations in germanium single crystals . In: Journal of Nature Research A . No. 13 , 1958, ISSN  0932-0784 , p. 348-349 .
2. ↑ Ulrich Bonse: For the radiographic determination of the type of individual dislocations in single crystals . In: Journal of Physics . tape 153 , no. 3 , June 1, 1958, ISSN  0044-3328 , p. 278-296 , doi : 10.1007 / BF01329036 .
3. ↑ Ulrich Bonse, Eugen Kappler, F. Simon: X-ray measurements of the distortion field of a single dislocation . In: Journal of Nature Research A . No. 14 , 1959, ISSN  0932-0784 , p. 1079-1080 (English).
4. ↑ Ulrich Bonse: X-ray picture of the field of lattice distortions around single dislocations . In: John B. Newkirk (Ed.): Direct observation of imperfections in crystals . Proceedings of a technical conference held in St. Louis, Missouri, March 1-2, 1961. Interscience, New York 1962.
5. ↑ Ulrich Bonse: Theory of the propagation of X-ray wave field rays in the weakly deformed crystal lattice . In: Journal of Physics . tape 177 , no. 4 , August 1, 1964, ISSN  0044-3328 , p. 385-423 , doi : 10.1007 / BF01375325 .
6. ↑ Ulrich Bonse: Strong deflection of X-ray wave field rays in elastically bent crystals . In: Journal of Physics . tape 177 , no. 5 , October 1, 1964, ISSN  0044-3328 , p. 529-542 , doi : 10.1007 / BF01375207 .
7. ↑ Ulrich Bonse: On the contrast to dislocations in the X-ray image . In: Journal of Physics . tape 177 , no. 5 , October 1, 1964, ISSN  0044-3328 , p. 543-561 , doi : 10.1007 / BF01375208 .
8. ↑ Ulrich Bonse, Michael Hart: Principles and design of Laue-case X-Ray interferometers . In: Journal of Physics . tape 188 , no. 2 , April 1, 1965, ISSN  0044-3328 , p. 154-164 , doi : 10.1007 / BF01339402 (English).
9. ↑ Ulrich Bonse, Michael Hart: An X-ray interferometer . In: Applied Physics Letters . tape 6 , no. 8 , April 15, 1965, ISSN  0003-6951 , p. 155–156 , doi : 10.1063 / 1.1754212 (English).
10. ↑ Prof. Ulrich Bonse. SPIE , accessed February 25, 2014 .  
11. ↑ TU Dortmund honors X-ray interferometry pioneer Bonse on his 85th birthday. In: lokalkompass.de . October 12, 2013, accessed April 22, 2019 .  
12. ↑ Kv-Jahrbuch 2010 p. 621