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roentgen
Book article from: The Oxford Essential Dictionary of the U.S. Military
roentgen ˈrentgən; ˈrənt-; -jən n.a unit of exposure dose of gamma (or X) radiation. One roentgen is essentially equal to one rad.
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Röntgen (Roentgen), Wilhelm Conrad
Dictionary entry from: Complete Dictionary of Scientific Biography
R ö NTGEN (ROENTGEN), WILHELM CONRAD ( b . Lennep im Bergischen [now part of Remscheid], Rhine Province, Germany, 27 March 1845; d . Munich...
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rem
Book article from: The Oxford Essential Dictionary of the U.S. Military
rem n. roentgen equivalent mammal the quantity of ionizing radiation that, when absorbed...physiological effect equivalent to that produced by the absorption of one roentgen of X-ray or gamma radiation; it is used in connection with calculating...
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Becoquerel, [Antoine-] Henri
Dictionary entry from: Complete Dictionary of Scientific Biography
...remembered still undone. In the very opening days of the year, Roentgen had announced his discovery of X rays by a mailing of preprints...who had received a preprint, Becquerel learned that in Roentgen ’ s tubes the X rays arose from the fluorescent spot...
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Training Analysis
Dictionary entry from: International Dictionary of Psychoanalysis
...which are not necessary with patients, since regular analytic work has deleterious effects on one's psyche just as work with Roentgen rays has on one's tissues; it needs to be countered by steady hard work" (Jones, p. 478). A few years later, at a...
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Eichenwald, Aleksandr Aleksandrovich
Dictionary entry from: Complete Dictionary of Scientific Biography
...Eichenwald measured the currents produced by the motion of a dielectric in a nonuniform electric field (they had been discovered by Roentgen in 1888) and organized a new type of experiment (the Eichenwald experiment), by means of which the existence of the magnetic...
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Kossel, Walther (Ludwig Julius Paschen Heinrich)
Dictionary entry from: Complete Dictionary of Scientific Biography
...In the same year, he married Hedwig Kellner. In order to advance his knowledge of physics he then moved to Munich, where Roentgen and Sommer- feld at the University, and Zenneck at the Technische Hochschule, presided over othriving institutes where P...
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Majorana, Ettore
Dictionary entry from: Complete Dictionary of Scientific Biography
...three on nuclear physics or the properties of elementary particles. The first group of papers deals with the splitting of Roentgen terms of heavy elements induced by electron spin, the interpretation of recently observed spectral lines in terms of atomic...
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R
Book article from: The Oxford Pocket Dictionary of Current English
...on a gearshift) reverse. ∎ ( R. ) River (chiefly on maps): R. Cherwell. ∎ roentgen(s). ∎ rook (in recording moves in chess): 21.Rh4. • symb. ∎ Chem...
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X-ray astronomy
Book article from: A Dictionary of Astronomy
...In particular, the large array of proportional counters on Ginga improved spectral studies of X-ray sources. In 1987 the Roentgen Observatory was docked to the Mir space station. It was followed by the Granat satellite in 1989. X-ray astronomy has continued...
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