How To Use Becquerel In A Sentence
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The becquerel is a unit of radioactivity and corresponds to one radioactive disintegration per second.
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This box, designed to monitor gamma radiation, in itself contained enough strontium 90 to emit 500,000 becquerels of radioactivity.
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For the discovery and investigation of this radiation, called uranic or Becquerel rays, the Academy of Sciences awarded the
Nobel Prize in Chemistry 1911 - Presentation Speech
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Shortly after Antoine Becquerel and others developed the electrometer, John Mothée Gaugain made the first precise measurements of pyroelectric charges in 1859.
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Pierre and Marie Curie called Becquerel's radiation radioactivity.
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Swabs taken from the tanks now show monthly levels of 70 becquerels of caesium 137.
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In September officials in Yokohama said they had detected 40,200 becquerels of radioactive caesium per kilogramme of sediment collected from a roadside ditch.
Radiation in Tokyo not linked to Fukushima
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I've named it after Henri Becquerel in honour of the plant's peculiar beard.
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Becquerel in Paris wondered whether naturally fluorescent or phosphorescent substances might also emit X-rays.
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Sir Humphry Davy, Humboldt, Wollaston and Becquerel occupied themselves with the theoretical side of the question; but it was not till after 1845 that practical electroculture was undertaken.
Scientific American Supplement, No. 841, February 13, 1892
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The survey of 2,200 locations—conduced by 400 researchers in June and July—found that 33 of those locations had cesium-137 in excess of 1.48 million becquerels per square meter, the level set by the Soviet Union for forced resettlement after the 1986 Chernobyl disaster, Japanese authorities said.
Japan Finds Radiation Spread Over a Wide Area
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Becquerel in Paris wondered whether naturally fluorescent or phosphorescent substances might also emit X-rays.
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The NRPB has set an ‘action level’ of 200 becquerels where remedial measures should take place and the average radon level in British homes is 20 Bq/m3.
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The department began remedial work in early 2000, soon after the first phase of the survey became available, and the work is ongoing in the remaining 690 schools in where radon concentrations exceed 200 becquerels per cubic metre.
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This year is the centennial of the Nobel Prize in Physics shared by Henri Becquerel and the Curies for their pioneering work on radioactivity.
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The rate of decay in a given mass of the radionuclide is measured in units called becquerels, where 1 Bq equals one transformation per second.
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The International System of Units measure of activity is becquerels per cubic meter (Bq/m).
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At 50000 becquerels per cubic metre, this level of Radon gas was 250 times the recommended safe limit of 200 becquerels per cubic metre, he pointed out.
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Thirty of them were found to be above the high radon ‘reference level’, which is 200 becquerels per cubic metre of air.
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Comparitively speaking, a becquerel is very little radiation, while a gray and a sievert are a lot, physicists say.
Radiation Math: How Do We Count the Rays?
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Bromine-sensitized and Mercury-developed daguerreotypes have relatively compared to Becquerel-processed dags fast exposure times; the sitting might be anywhere from 10-60 seconds depending on the lighting conditions.
Antique photograph of the week: Smiling baby « knitnut.net
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The becquerel is a unit of radioactivity and corresponds to one radioactive disintegration per second.
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One becquerel means the disintegration of one nucleus (of the radium atom) per second.
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Tap water in Kawaguchi City in Saitama north of Tokyo contained 210 becquerels of radioactive iodine — well above the 100 becquerels considered safe for babies but below the 300-becquerel level for adults, Health Ministry official Shogo Misawa said.
Anxiety in Japan over radiation in tap water
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One sample taken in Glencree village recorded a reading of almost six times the safety limit of 1,000 becquerels per litre.
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‘This analysis did confirm the existence of the contamination but at very low levels - up to 10 becquerels per kilogram - in an area not normally accessed by members of the public,’ said a spokeswoman for Sepa.
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Schools in the county had the highest average reading in the country of 153 becquerels, and one Kerry school had one of the highest readings in Ireland with more than 3800 becquerels per cubic metre being detected.
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The analyses also found cobalt - 60 values of up to 40 becquerels per kilogram, and pollution from cesium - 137 in concentrations of up to 9,400 becquerels per kilogram.
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According to Messrs Frémy and Becquerel, the term ozone ought to be abandoned; for, after a series of careful experiments, they have come to the conclusion, that there is no real transformation of matter in the production of ozone, but that it is nothing more than 'electrified oxygen,' or oxygen in a particular state of chemical affinity.
Chambers's Edinburgh Journal, No. 456 Volume 18, New Series, September 25, 1852
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The idea that radioactive isotopes can be used for dating purposes is almost as old as Henri Becquerel's discovery of radioactivity itself in 1896.
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This year is the centennial of the Nobel Prize in Physics shared by Henri Becquerel and the Curies for their pioneering work on radioactivity.
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For one thing, the free-moving electrons, with which we are concerned in cathode rays and in some types of Becquerel rays, give rise to many interesting problems.
Hendrik A. Lorentz - Nobel Lecture
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The concentrations of tritium in leachate at the site sampled in March this year reached 14,230 becquerels per litre, compared to the 290 becquerels per litre reported in 1996.
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A disintegration per second is also known as a Becquerel (Bq).
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The Curies resolved to learn as much as they could about the source of radioactivity in pitchblende, the ore with which Becquerel originally worked.
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It had a caesium 137 concentration of only 4 becquerels per kilogram.
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The Sligo house we referred to above had a reading of 5,508 becquerels.
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One house had a concentration of 6,184 becquerels per cubic metre more than 30 times above the national reference level of 200 Bq/m3.
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Information on demographic and lifestyle variables was compiled for each person by using a common format, and radon measurements were expressed in becquerels (radon disintegrations per second) per cubic metre of household air.
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Thus, thought Becquerel, he had extended his discovery of long-lived phosphorescence to metals.
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Of that number, 121 had radon concentrations above the national reference level and nine had very high radon concentrations of more than 1000 becquerels per cubic metre.
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The modern international system of units includes the Gray, the Sievert, and the Becquerel (Bq); these replace the rad, rem, and Curie, respectively.
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Radon abundance is measured in terms of its radioactivity in becquerels per cubic metre of radon in air, written Bq m 3. 222 Rn, commonly referred to simply as radon, is the most discussed isotope.
