Results 11 to 20 of about 1,308,491 (270)
Radon emanation coefficient study of a geological sample [PDF]
, 1999 The radon atom can escape from the material it was formed in by direct recoil or by diffusion. It then enters either an inter or intra-granular space. Next, the radon atom can migrate by diffusion or convection in order to reach the atmosphere. The emanation coefficient is defined as the ratio between the number of radon atoms that escape from the ...
Ozgumus, A. +2 more
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A method for emanation coefficient measurements of 222Rn and 220Rn from soils
Physics and Chemistry of the Earth, 1997 Abstract A new method to determine emanation coefficient of 222Rn and 220Rn from soil samples is presented. The aim of the present work is to obtain a useful, rapid and noise free method to make soil sample measurements. The method is based on the measurements of specific activities of 220Rn and 222Rn in a sealed chamber using α-spectrometry and on ...
De Martino S., Sabbarese C.
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ESTIMATION OF RADON EMANATION COEFFICIENT FOR REPRESENTATIVE SOILS IN OKINAWA, JAPAN
ESTIMATION OF RADON EMANATION COEFFICIENT FOR REPRESENTATIVE SOILS IN OKINAWA, JAPANRadon (222Rn) emanation coefficients for the representative soils distributed in Okinawa Island, Japan, have been estimated empirically. Arithmetic means of the emanation coefficients for dry and moist conditions were calculated to be 0.19 and 0.29, respectively.
474183 +13 more
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I+E Illumination and Emanation; Light as Body Adornment and the Implications of Wearable Light [PDF]
, 2011 I+E Illumination and Emanation; Light As Body Adornment and the Implications of Wearable Light is practice-based research that exploits advances in miniature light sources in order to establish new forms of aesthetic expression through wearable light.
Oberlack, Ulrike
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Influence of various factors on the value of thoron emanation coefficient [PDF]
Journal of Radioanalytical and Nuclear Chemistry, 2021 AbstractThe “powder sandwich” method was adapted to the measuring equipment at the Laboratory of Radiometric Expertise, IFJ PAN (Kraków, Poland). The versatility of the method has been confirmed. The values of thoron emanation coefficients (f) for 16 materials have been determined. It has been found that the value of thoron emanation coefficient is not
Karolina Danyłec +4 more
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The influence of building material structure on radon emanation [PDF]
, 2022 In this work, the radon emanation coefficients for selected building materials that are most often used in Serbia for covering floor surfaces (concrete, concrete screed, granite, glazed ceramic tiles, marble, roofing tile, and terrazzo tile) were ...
Todorović, Nataša +6 more
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Preparation of multi-purpose radon emanation sources
, 2021 The aim of this work was to prepare reference radon emanation sources traceable to primary standards to be used for radon-in-air as well as radon-in-water experiments.
STROH Heiko +5 more
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Ion implantation of 226Ra for a primary 222Rn emanation standard [PDF]
, 2022 Laser resonance ionization at the RISIKO 30 kV mass separator has been used to produce isotopically and isobarically pure and well quantified 222Rn emanation standards.
Weber, Felix +9 more
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Determination of radon emanation for phosphogypsum produced in Serbia [PDF]
, 2021 Phosphogypsum is a waste that is generated in the production of fertilizers and is very similar to the natural gypsum, thus its use in the construction industry is possible. It usually contains an increased concentration of 226Ra in its composition.
Jovana Knežević +13 more
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Radiometric properties of sepiolite minerals from quarries in central Anatolia of Turkey [PDF]
Nuclear Technology and Radiation Protection, 2019 Sepiolite is a naturally occurring clay mineral of sedimentary origin and is a magnesium hydrosilicate. Sepiolite has been widely used as an additive raw material in ceramics and cement industry, pharmaceutical, cleaning-detergent, paper, paint, cosmetic
Hancerliogullari Aybaba +3 more
doaj +1 more source