rontgen(redirected from Roentgen (R))
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Related to Roentgen (R): roentgen ray, Roentgen equivalent man, Roentgen Rays, roentgen unit, Wilhelm Conrad Röntgen
Wilhelm Conrad (1845–1923). German physicist, born at Lennep (Rheinland). For his discovery of x-rays while experimenting with a cathode-ray tube in 1895, he received the first Nobel prize for physics in 1901.
Wilhelm K., German physicist and Nobel laureate, 1845-1923. Discovered x-rays in November, 1895; awarded Nobel Prize in Physics in 1901 for his discovery. See: roentgen, roentgen ray.
roent·gen (R, r),(rĕnt'gĕn, rent'chen),
The international unit of exposure dose for x-rays or gamma rays; that quantity of radiation that will produce, in 1 cc or 0.001293 g of air at STP, 2.08 × 109 ions of both signs, each totaling 1 electrostatic unit (esu) of charge; in the MKS system this is 2.58 × 10-4 coulombs per kg of air.
[Wilhelm K. Roentgen]
röntgen(rĕnt′gən, -jən, rŭnt′-)
Variant of roentgen.