natural radioactivity वाक्य
उदाहरण वाक्य
मोबाइल
- In this scenario, T is the age of the sample, i . e . the time during which the sample has been exposed to natural radioactivity since the ESR signal has been last reset.
- The flux of ionizing radiation & mdash; both from cosmic radiation and from natural radioactivity & mdash; excites electrons from atoms in the crystal lattice into the conduction band where they can move freely.
- A standard fiducial volume of approximately 22.5 ktons is defined as the region inside a surface drawn 2.00 m from the ID wall to minimize the anomalous response causing by natural radioactivity in the surrounding rock.
- But he did say that " artificial radioactivity in Polynesia resulting from atmospheric nuclear tests, stopped since 1974, was less than the natural radioactivity contained in the islands'basaltic base and in the coral of the atolls ."
- It suggests that the history of radioactivity during the past century divides into two parts, before 1934, when natural radioactivity was the focus of scientific study, and after 1934, when the first man-made radioactive elements were created.
- Atmospheric electricity involves both thunderstorms, which create lightning bolts to rapidly discharge huge amounts of atmospheric charge stored in storm clouds, with a related phenomenon of continual electrification of the air due to ionisation from cosmic rays and natural radioactivity.
- The natural radioactivity does not come from human sources : it covers up to ?of the total radioactivity in the world and has its origins in the interaction of terrestrial elements with high energy cosmic rays ( primordial radionuclides ).
- I think it is safe to say that " Greens " would object to a mildly radioactive lunar surface, as this would make various measurements based on natural radioactivity much harder . talk ) 16 : 27, 20 February 2012 ( UTC)
- Gamma decay as a separate phenomenon, with its own half-life ( now termed isomeric transition ), was found in natural radioactivity to be a result of the gamma decay of excited metastable nuclear isomers, which were in turn created from other types of decay.
- The nomadic populations of Kel Tohra, the most exposed ( 240 people moving about the northern fringe of the fallout ) would thus have received a similar cumulative dose up to 2.5 mSv ( on the order of magnitude of one year's natural radioactivity ).
- Lyrically, the 1975 version of the song plays upon the meaning of its title, with the line " Discovered by Madame Curie ( In fact, Natural radioactivity was discovered by Henri Becquerel ( and independently by Silvanus Thompson ); induced radioactivity by Ir�ne Joliot-Curie, Marie Curie's daughter.
- The natural radioactivity of thorium and uranium made it hard to determine what was happening when these elements were bombarded with neutrons but, after correctly eliminating the presence of elements lighter than uranium but heavier than lead, Fermi concluded that they had created new elements, which he called hesperium and ausonium.
- He was also the author of the very first textbooks of physics, as " Kurs i fizik�s s?p�rgjithshme " ( General physics course ) in 1974, " Kurs i mekanik�s teorike " ( Theoretical mechanics course ) of 1981, etc . He performed studies in the field of natural radioactivity of the waters systems.
- But Sadoulet added that " there is a lot of skepticism in the community " as to whether the Rome group has really detected the elusive WIMP . He said that unrelated seasonal effects, such as temperature variations around the sensitive detectors or changes in levels of natural radioactivity, could still be mimicking the expected signal.
- Nonetheless, estimates of radioactivity leakage into the Pacific Ocean remain modest with " National Geographic " reporting the leakage of approximately 0.3 Tbq per month of both 137 Cs and 134 Cs . 0.3 TBq is equal to 1 / 40 th of the natural radiation in one km 3 of seawater and 1 / 50000000000 th of the total natural radioactivity in the oceans.
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