Lex Muller (right) descending the ladder of the 7.5 m Kootwijk radio telescope (converted German Würzburg radar dish), the Netherlands, around 1951.
Born
(1923-04-18)April 18, 1923
Alkmaar, the Netherlands
Died
August 8, 2004(2004-08-08) (aged 81)
Education
Engineering Physics
Alma mater
Delft Institute of Technology, 1950[1][2]
Known for
Determination of the spiral structure of the Milky Way
Scientific career
Fields
Radio astronomy, Microwave technology
Institutions
Kootwijk radio telescope, Dwingeloo Radio Observatory, Westerbork Synthesis Radio Telescope, Leiden University, University of Twente
Doctoral students
Brouw, Willem "Wim" Nicolaas; van Nieuwkoop, Jacob "Jaap"
Dwingeloo Radio Observatory, inaugurated in 1956 and used for research up to 2000. Photo 2006.Westerbork Synthesis Radio Telescope, 2007.
Christiaan Alexander "Lex" Muller (Alkmaar, the Netherlands, 18 April 1923 - Delden, The Netherlands, August 8, 2004) was a Dutch radio engineer, radio astronomer and professor at Leiden University and the University of Twente.[2][3] As the chief engineer he pioneered Dutch radio astronomy with the radio telescopes of Kootwijk, Dwingeloo (Dwingeloo Radio Observatory), and Westerbork (Westerbork Synthesis Radio Telescope), where he designed the receiver system.[4] Because of his work with Dutch astronomer Jan Oort on the determination of the spiral structure of the Milky Way using the 21 cm hydrogen radio line emission observed with the Kootwijk telescope, he was nominated for the Nobel Prize in Physics in 1956, 1957, 1958, and 1961 by Swedish astronomer Bertil Lindblad and Karl Ingve Öhman.[5][6]
Muller was a professor with the Astronomy department at Leiden University from 1959 to 1972 in the field of Microwave technology and its application in astronomy, physics and chemistry (Dutch: Techniek van de microgolven en hun toepassing in de sterrenkunde, natuurkunde en scheikunde),[3] where he mentored two PhD students, Wim Brouw and Jaap van Nieuwkoop.[1] His inaugural address of June 2, 1961 was entitled Microwave technology in astronomy (original Dutch: De microgolftechniek in de sterrenkunde).[3] He moved to the department of Electrical engineering (Electrotechniek) at the University of Twente, where he taught Microwave technology from 1971 up to 1984.[7]
^ ab"Christiaan Alexander "Lex" Muller (1923-2004)". astrogen.aas.org. American Astronomical Society.
^ abWijers, H. J. Michiel (February 2018). "Christiaan Alexander Muller (1923-2004)". hjmwijers.nl (in Dutch). Retrieved April 13, 2024. Deze kwartierstaat is onderdeel van een reeks kwartierstaten van Twentse hoogleraren. [This Ahnentafel is part of a series of pedigrees of Twente professors.]
^ abc"Christiaan Alexander Muller". hoogleraren.universiteitleiden.nl (in Dutch). Leiden University. Retrieved April 13, 2024.
^Strom, Richard; Gurvits, Leonid. "History of the Westerbork Synthesis Radio Telescope (WSRT)" (PDF). rahist.nrao.edu. National Radio Astronomy Observatory. Retrieved April 13, 2024.
^"Nomination archive. Christiaan Alexander (Lex) Muller". nobelprize.org. Nobel Prize Outreach AB 2024. Retrieved April 13, 2024.
^van der Kruit, Pieter C. (2021). Master of Galactic Astronomy: A Biography of Jan Hendrik Oort. Springer. pp. 198, 202. OCLC 1242443499.
^"prof. C.A.Muller". utoday.nl (in Dutch). University of Twente. 18 August 2004. Retrieved April 13, 2024. Obituary.
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