The necessity for a unit of measurement of roentgen dosage was realized soon after roentgen rays were used therapeutically. The many methods and instruments that have been used for measuring the intensity and quality of radiation ...
The first known use of roentgen was in 1896 roentgen儿童词典英英释义 roenoun the eggs of a fish especially while still bound together in a membrane roentgennoun the international unit of measurement for X-rays and gamma rays that is based on their ability to produce charged particles in the ...
Why is '-ed' sometimes pronounced at the end of a word? Popular in Wordplay See All Terroir, Oenophile, & Magnum: Ten Words About Wine 8 Words for Lesser-Known Musical Instruments 10 Words from Taylor Swift Songs (Merriam's Version) ...
Why is '-ed' sometimes pronounced at the end of a word? Popular in Wordplay See All Terroir, Oenophile, & Magnum: Ten Words About Wine 8 Words for Lesser-Known Musical Instruments 10 Words from Taylor Swift Songs (Merriam's Version) ...
obsolete unit of measurement; that quantity of ionizing radiation of any kind that, upon absorption by living tissue, produces an energy gain per gram of tissue equivalent to that produced by 1 rad of x-rays or gamma-rays. See: rad. Farlex Partner Medical Dictionary © Farlex 2012Want...
a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air 同义词:R German physicist who discovered x-rays and developed roentgenography (1845-1923) 同义词:Wilhelm Konrad RoentgenRontgenWilhelm Konrad Rontgen ...
语法 Alternative form of [i]röntgen[/i][..] +添加翻译 英文-亚美尼亚文字典 Ռենտգեն legacy unit of measurement for the kerma of X-rays and gamma rays up to 3 MeV wikidata Glosbe Research 显示算法生成的翻译 将“roentgen"自动翻译成 亚美尼亚文 ...
pneumoencephalogram,encephalogram- an X ray of the brain made by replacing spinal fluid with a gas (usually oxygen) to improve contrast hysterosalpingogram- X ray of the uterus and Fallopian tubes; usually done in diagnosing infertility (to see if there any blockages) ...
Grays and rads measure energy absorption but do not measure biological effects. A common way to quantify biological radiation damage and to estimate a resulting risk profile is an SI unit, the Sievert (SV), or a US unit, theRoentgen Equivalent Man(rem). These units of measurement are referre...
in physics, 1896, inRoentgen rays"X-rays," in recognition of German physicist Wilhem ConradRöntgen(1845-1923), who discovered X-rays in 1895. As a unit of exposure to radiation, it is attested from 1922, proposed in French in 1921. ...