Roentgen

[n] - a unit of radiation exposure 2. [n] - German physicist who discovered x-rays and developed roentgenography (1845-1923)
Found on http://www.webdictionary.co.uk/definition.php?query=Roentgen

Roentgen

<radiobiology, unit> The special unit of exposure, based on a quantity of ionisation (charge) produced by the absorption of X or gamma radiation energy in a specified mass of air under standard conditions. ... 1R = 2.58 x 10-4 C kg-1 or air. ... For radiation protection purposes, an exposure to 1 roentgen of x or gamma rays (air kerma of ~10-...
Found on http://www.encyclo.co.uk/local/20973

Roentgen

Wilhelm Konrad Roentgen noun German physicist who discovered x-rays and developed roentgenography (1845-1923)
Found on https://www.encyclo.co.uk/local/20974

roentgen

(R, r) Type: Term Pronunciation: rĕnt′gĕn, rent′chen Definitions: 1. 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 sys...
Found on http://www.medilexicon.com/medicaldictionary.php?t=78848

Roentgen

It is a unit for measuring the dose of radiation.
Found on http://www.vidyagyaan.com/general-knowledge/basic-chemistry-element-terms-a

Roentgen

Measurement of radiation dosage caused by X-rays and gamma radiation. It is the amount of radiation required to deposit 97 ergs of energy per gram of air.
Found on http://www-bdnew.fnal.gov/operations/accgloss/gloss.html

roentgen

roentgen A unit for describing the exposure dose of x-rays or gamma rays. One unit can liberate enough electrons and positrons to produce emissions of either charge of one electrostatic unit of electricity per 0.001293 g of air (the weight of 1 cm3 of dry air at 0 degrees Centigrade and at 760 mm Hg).
Found on http://www.wordinfo.info/words/index/info/view_unit/1864/

Roentgen

Roentgen: An international unit of X-radiation or gamma-radiation. Abbreviated R. Named for Wilhelm Roentgen.
Found on http://www.medterms.com/script/main/art.asp?articlekey=5390

roentgen

the earlier special unit of exposure 1 R = 2.58 x 10- 4 C kg- 1
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=881-12-31

Roentgen

The roentgen is a unit used to measure radiation exposure. This canonly be used to describe an amount of gamma and X-rays, and only in air. Oneroentgen is equal to depositing in dry air enough energy to cause 2.58x10-4 coulombs kg-1.It is a measure of the ionizations of the molecules in a mass of air.The main advantage of this...
Found on http://www.diracdelta.co.uk/science/source/r/o/roentgen/source.html

Roentgen

Type: Term Pronunciation: rĕnt′gĕn Definitions: 1. 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
Found on http://www.medilexicon.com/medicaldictionary.php?t=78847

roentgen

unit of exposure such as: 1 R = 2,58 x 10-4 C?? kg-1
Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=393-14-59

roentgen

unit of x-radiation or gamma radiation
Found on http://phrontistery.info/r.html

roentgen

unit of X-radiation or gamma radiation, the amount that will produce, under normal conditions of pressure, temperature, and humidity, in 1 kg (2.2 ... [3 related articles]
Found on http://www.britannica.com/eb/a-z/r/60
No exact match found