roentgen ray


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x-ray

(eks'rā),
1. The ionizing electromagnetic radiation emitted from a highly evacuated tube, resulting from the excitation of the inner orbital electrons by the bombardment of the target anode with a stream of electrons from a heated cathode. Synonym(s): roentgen ray Compare: glass rays, indirect rays.
2. Ionizing electromagnetic radiation produced by the excitation of the inner orbital electrons of an atom by other processes, such as nuclear delay and its sequelae.
3. Synonym(s): radiograph

roentgen ray

n.
See x-ray.

roentgen ray

See x-ray, def. 1.

x-ray

()
1. The ionizing electromagnetic radiation emitted from a highly evacuated tube, resulting from the excitation of the inner orbital electrons by the bombardment of the target anode with a stream of electrons from a heated cathode.
2. Ionizing electromagnetic radiation produced by the excitation of the inner orbital electrons of an atom by other processes, such as nuclear delay and its sequelae.
3. A radiograph.
Synonym(s): roentgen ray.

Roentgen,

Wilhelm K., German physicist and Nobel laureate, 1845-1923.
roentgen - the international unit of exposure dose for x-rays or gamma rays.
roentgen ray - Synonym(s): x-ray
roentgenograph - Synonym(s): radiograph

x-ray

()
1. Ionizing electromagnetic radiation emitted from a highly evacuated tube, resulting from excitation of inner orbital electrons by bombardment of the target anode with a stream of electrons from a heated cathode.
2. Ionizing electromagnetic radiation produced by the excitation of the inner orbital electrons of an atom by other processes, such as nuclear delay and its sequelae.
3. Synonym(s): radiograph.

roentgen

a superseded international unit of x- or γ-radiation; it is the quantity of x- or γ-radiation such that the associated corpuscular emission per 0.001293 g of air produces, in air, ions carrying 1 electrostatic unit of electrical charge of either sign. Abbreviated R. Now replaced by coulomb/kg (C/kg); see coulomb. 1 R = 2.58 × 10−4 C/kg; 1 C/kg = 3876 R.

roentgen equivalent man (rem)
see rem.
roentgen equivalent physical (rep)
see rep.
roentgen ray
x-ray.

Patient discussion about roentgen ray

Q. Is an X- Ray dangerous to my fetus? I fell down while I am pregnant and was sent to the ER. I was given an x- ray there, is the radiation dangerous to my fetus?

A. As far as I know one x-ray cannot harm your fetus since there is not enough radiation there to harm it. If you are worried consult a Doctor.

More discussions about roentgen ray
References in periodicals archive ?
Wanebo said at the annual meeting of the Roentgen Ray Society.
Muttarak said at the annual meeting of the American Roentgen Ray Society.
He also serves on the Board of Trustees of the Massachusetts General Physicians Organization, the Board of Chancellors of the American College of Radiology, the Board of Trustees of the Research and Education Foundation of the Radiological Society of North America, and is the President of the American Roentgen Ray Society.
Gupta is board certified by the American Board of Radiology and a member of the American College of Radiology, American Roentgen Ray Society, Radiological Society of North America and Clark County Medical Society.
O'Reilly urged at the annual meeting of the American Roentgen Ray Society.
He is also on the Board of Chancellors for the American College of Radiology and is the immediate past President of the American Roentgen Ray Society.
Edmister is a member of the Clark County Medical Society, American Board of Radiology, American College of Radiology, American Roentgen Ray Society, and the Radiological Society of North America.
Andrea Arjonilla said at the annual meeting of the American Roentgen Ray Society.
He holds memberships, serves on organizing committees, and is on the board of many professional organizations such as RSNA, SCAR, SPIE, Association of University Radiologists, American Roentgen Ray Society, American College of Radiology, and others.
WASHINGTON -- Ultrasound assessment correctly classifies more than 90% of palpable breast masses in girls as normal tissue, cysts, abscesses, or solid masses, Kyung-Hwa Rhee reported at the annual meeting of the American Roentgen Ray Society.
Morris is the lead author of a study published by the American Roentgen Ray Society (ARRS) that showed MRI is an accurate way to look for any disease remaining in the breast after a lumpectomy.
Maung is a member of the Radiological Society of North America, American College of Radiology, Los Angeles Radiological Society, American Medical Association, American Roentgen Ray Society and Academic Radiology.