4 edition of Geophysical Problems of Krypton 85 in the Atmosphere found in the catalog.
Geophysical Problems of Krypton 85 in the Atmosphere
March 1, 1991
by Taylor & Francis
Written in English
|The Physical Object|
|Number of Pages||160|
A vertical profile of Krypton‐85 from 12 to 40 km height was obtained from a balloon‐borne experiment. The results display a clear concentration gradient between the troposphere and 22 km. Above this altitude, the concentration varies very little, in agreement with theoretical predictions. Styra, B. and Butkus, D. / GEOPHYSICAL PROBLEMS OF KRYPTON IN THE ATMOSPHERE, Vilnius, , cl, pages, - 1 -, $ 30 Taylor, H. P. Jr., O’Neil, J. R., and Kaplan, I. R. / STABLE ISOTOPE GEOCHEMISTRY: A TRIBUTE TO SAMUEL EPSTEIN, San Antonio, , cl, pages, Geochemical Society Special Publication # 3, - 3 -, $
Kriptono geofizinės problemos atmosferoje, su Boleslovu Styra, rusų kalba, m., anglų kalba (Geophysical problems of Krypton in the atmosphere. New York, Washington, Philadelphia, London: Hemisphere Publishing Corporation), m. Joseph Sanak, Alain Jegou and Gérard Lambert, Vertical profile of krypton‐85 in the stratosphere, Geophysical Research Letters, 14, 6, (), (). Wei‐Chyung Wang, Donald J. Wuebbles, Warren M. Washington, Ronald G. Isaacs and Gyula Molnar, Trace gases and other potential perturbations to global climate, Reviews of Geophysics,
Krypton History/Discovery William Ramsay and his assistant chemist Morris Travers discovered krypton in in London. Ramsay had previously discovered helium and argon Intresting Facts Atomic Info Characteristics Krypton in the atmosphere can be used to detect the presence. Chemistry General Chemistry - Standalone book (MindTap Course List) A nuclear power plant emits into the atmosphere a very small amount of krypton, a radioactive isotope with a half-life of y. What fraction of this krypton remains after y?
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A consideration of the properties of Krypton as a radionuclide and the interaction of 85Kr with other nuclides that influence geophysical processes occurring in the atmosphere. The book also looks at the effects of external forces (eg the nuclear power industry) on concentrations of 85 Kr.
Geophysical problems of krypton in the atmosphere Book Styra, B I ; Butkus, D ; AN LSSR, Institut Fiziki, Vilnius, Lithuanian SSR) The properties of krypton as a radionuclide are examined with emphasis on its interaction with surrounding objects that influence geophysical processes occurring in the atmosphere.
Krypton actively causes a number of geophysical phenomena which can have a negative impact on the environment. The authors examine the impact of 85Kr on the atmosphere, the biosphere and man. In addition, they consider the effects of external forces, such as the nuclear power industry, on concentrations of 85Kr over : Gebundenes Buch.
The total radioactivity of the atmosphere consists of the radioactivity of its components in both gaseous and liquid state. Since seperate radionuclides interact differently within the atmosphere and differ in properties, a careful study of specific nuclides is necessary.
This book considers the properties of Krypton as a radionuclide and the interaction of 85Kr with other nuclides that. Increase in the85Kr activity in the atmosphere can changeelectrical conductivity of the air through the ionization and cause geophysical effects which are difficult to predict.
The content of this radionuclide in the atmosphere is regularly determined by a number of observatories located in Western Europe, Japan and Australia [2,3]. The spatio-temporal distribution of 85Kr atmospheric activity is discussed.
Some forecasts of future 85Kr concentration in the atmosphere and its possible ecological consequences are also presented. Introduction The radioactive krypton isotope, 85Kr (/3 decay, Emax = MeV, half-life T1/2 = y) has existed in the atmosphere in considerable amounts for over 20 years.
85Kr is. Krypton activity concentrations in surface air have been measured at Darwin, which is located in northern Australia and is influenced by seasonal monsoonal activity.
Measurements between August. They have calculated that the cosmic-ray production of krypton by neutrons in the atmosphere is × 10 13 Bq per year. This would lead to an activity of about 10 dpm per liter of krypton. This would lead to an activity of about 10 dpm per liter of krypton.
In this problem we use observations of the radioactive gas 85Kr to determine the characteristic time for exchange of air between the northern and southern hemispheres. We consider a 2-box model where each hemisphere is represented by a well-mixed box, with a rate constant k (yr-1) for mass exchange between the two hemispheres.
Sincewhen large-scale reprocessing began, an anthropogenic background of krypton in the atmosphere has built up. The locations and krypton emissions of known reprocessing plants have been previously compiled for the years – (Ahlswede et al., ). KRYPTON produced by fission in nuclear reactors is at present the most abundant man-made radioisotope in the troposphere.
Its activity in air was 33 d.p.m. m−3 air by the end of and it. Generally it's said that gravity on Krypton was much heavier. I think the first time I ever saw it addressed was by Maggin, but I have no idea if Im remembering that right or if he was the first to tackle the subject. But typically, higher gravity, lower light, thinner atmosphere, higher ambient radiation.
Because the atmosphere is a thin layer when compared to the size of the earth, it faces more severe problems from human activity than other components of the planet. It is a mixture of many gases but its composition is changing.
If the changes continue, the problems of the earth's atmosphere may have negative. It appears that Krypton is the most important airborne isotope for the global atmosphere. and Grant, K.:‘Comparisons of Observed Ozone and Temperature Trends in the Lower Stratosphere’, Geophysical Research Letters 19 (9), – CrossRef Google Scholar.
NRCP:‘Krypton in the Atmosphere’, NCRP, Report Title: Krypton in the atmosphere Authors: A. Korsakov, E. Tertyshnik Measurement results are presented on85Kr content in the atmosphere over the European part of Russia in – based on the analysis of samples of the commercial krypton, which is separated from air by industrial plants.
Our results are by 15 % lower than85Kr. 85 Kr concentrations observed in ground level air of Prague between and are presented and their time-related changes analyzed. The constant long-term trend in the activity level of 85 Kr with the mean value of /±/ Bq.m −3 /STP/ has been found during the investigated period.
The recorded short-term fluctuations of 85 Kr data ranging from to Bq.m −3 /STP. Other articles where Krypton is discussed: krypton: Properties of the element: contains only one radioactive isotope, krypton, which has a half-life of years, because all the other radioactive isotopes have half-lives of 3 hours or less.
Krypton is emitted to the atmosphere during the reprocessing of nuclear fuel. It is removed from the atmosphere solely by radioactive decay with a rate constant k c = x10 -2 yr The sources of 85 Kr are solely in the northern hemisphere and their magnitudes are.
Electronic books Electronic book: Additional Physical Format: Print version: National Council on Radiation Protection and Measurements. Krypton in the atmosphere. Washington: The Council, (DLC) (OCoLC) Material Type: Document, Internet resource: Document Type: Internet Resource, Computer File: All Authors / Contributors.
Krypton in the atmosphere. By A. Korsakov and E. Tertyshnik. Abstract. Measurement results are presented on 85Kr content in the atmosphere over the European part of Russia in based on the analysis of the commercial krypton, which is separated from air by industrial plants.
Our results are by 15 per cent lower then 85Kr. The measured 81 Kr and 85 Kr abundances for the eight glacier ice samples as well as two air samples of Lhasa are listed in Table 1.
As described above, the 85 Kr in the atmosphere has almost exclusively been produced anthropogenically in the past 60 years. Therefore, any sample older than that should have a vanishing 85 Kr abundance.krypton (half-life 5 years, fission yield 5 %).
The present largest emitter of krypton is the French reprocess-ing plant at Cap-de-la-Hague. It is generally known that the chemical element krypton, isolated from the atmosphere inis radioactive.
For .Krypton is emitted to the atmosphere during the reprocessing of nuclear fuel. It is removed from the atmosphere solely by radioactive decay with a rate. constant kc = x yr The sources of 85Kr are solely in the northern hemisphere and their magnitudes are .