Results 21 to 30 of about 54,522 (197)

The Search for Supernova-produced Radionuclides in Terrestrial Deep-sea Archives [PDF]

, 2012
An enhanced concentration of 60Fe was found in a deep ocean's crust in 2004 in a layer corresponding to an age of ~2 Myr. The confirmation of this signal in terrestrial archives as supernova-induced and detection of other supernova-produced radionuclides
A. Wallner, Aggarwal, Allison, Auer, Avillez, Berghöfer, Bourlès, Chmeleff, Cook, D. Breitschwerdt, Diehl, Fitoussi, Fitoussi, Fuchs, G. Korschinek, G. Rugel, Hofmann, Holden, Honda, Imamura, J. Feige, Knie, Knie, Korschinek, Korschinek, L. K. Fifield, Lachner, Merchel, Middleton, Nishiizumi, Paul, Paul, Rugel, S. Merchel, S. R. Winkler, Samworth, Thomas, Wallner   +37 more
core   +1 more source

Assessment of radioactivity concentrations and effective of radionuclides in selected fruits from major markets at Ijebu – Ode in Ogun State, southwest of Nigeria

Journal of Applied Sciences and Environmental Management, 2018
Natural Radionuclides are elements that are found in the air, water and soil. They find their ways in to the plants through the leaves and absorption of nutrients and water from the soil through the roots.
O Sowole, O.E. Olaniyi
doaj   +1 more source

Natural radionuclides (NORM) in a Moroccan river affected by former conventional metal mining activities

Journal of Sustainable Mining, 2019
The main aim of this work was to determine the levels of multiple natural radionuclides in an aquatic system (Moulouya river, Morocco) impacted by multiple abandoned Zinc and Lead mines.
Guillermo Manjón, Juan Mantero, Ignacio Vioque, Inmaculada Díaz-Francés, José Antonio Galván, Said Chakiri, Abdelmajid Choukri, Rafael García-Tenorio   +7 more
doaj   +1 more source

Radiocarbon releases from the 2011 Fukushima nuclear accident [PDF]

, 2016
Radiocarbon activities were measured in annual tree rings for the years 2009 to 2015 from Japanese cedar trees (Cryptomeria japonica) collected at six sites ranging from 2.5–38 km northwest and north of the Fukushima Dai-ichi nuclear power plant. The 14C
Cook, Gordon T., Cresswell, Alan, Dunbar, Elaine, Freeman, Stewart P.H.T., Hou, Xiaolin, Jacobsson, Piotr, Kinch, Helen R., Naysmith, Philip, Sanderson, David C.W., Tripney, Brian G., Xu, Sheng   +10 more
core   +2 more sources

Natural Radionuclides Determination and Radiological Hazard Assessments in Soil from Tual and Kei Islands, Indonesia

Atom Indonesia, 2020
Natural radionuclides 226Ra, 232Th and 40K in soil are the primary component of the background exposure sources of the population. Study of the external exposure due to gamma-ray radiation of natural radionuclides is important because this may contribute
S Syarbaini, K Kusdiana, M. Wiyono, D. Iskandar   +3 more
doaj   +1 more source

Natural Occurring Radionuclide Materials

, 2011
The stellar material, from which the earth was formed, about 4.5 billion years ago, contained many unstable nuclides (Scholten and Timmermans, 1996). Some of the original primordial nuclides, whose half-lives are about as long as the earth's age, are still present.
Hussain, Raad Obid, Hussain, Hayder Hamza   +1 more
openaire   +3 more sources

Cosmic radioactivities [PDF]

, 1999
Radionuclides with half-lives ranging from some years to billions of years presumably synthesized outside of the solar system are now recorded in ``live'' or ``fossil'' form in various types of materials, like meteorites or the galactic cosmic rays. They
Arnould, Marcel, Prantzos, Nikos
core   +3 more sources

Content of radionuclides (226Ra, 232Th, 40K, 137Cs) in soils of the North-West region of Russia formed on three types of soil forming rocks [PDF]

E3S Web of Conferences, 2020
The results of a study of the content of natural radionuclides (NR) (226Ra, 232Th, 40K) and technogenic 137Cs in soil samples formed on the most common types of soil-forming rocks of the North-West: lakeglacial (non-boulder and tape clay), glacial and ...
Mingareeva Elena, Aparin Boris, Sukhacheva Elena, Sanzharova Natalia, Shevchuk Evgeny, Terleev Vitaly, Nikonorov Aleksandr, Akimov Luka   +7 more
doaj   +1 more source

Radionuclide activities in sediments on the northern coast of Spitsbergen

Polish Polar Research, 2017
The specific activity of natural gamma emitters like actinium (228Ac), bismuth (212Bi, 214Bi), lead (212Pb, 214Pb), potassium (40K), radium (224Ra), thallium (208Tl) and artificial radioisotope caesium (137Cs) was measured in 2005 in the surface layer of
Wojtasik Barbara, Świrydowicz Sławomir, Burska Dorota, Nowiński Kamil   +3 more
doaj   +1 more source

Tracer Applications of Noble Gas Radionuclides in the Geosciences

, 2013
The noble gas radionuclides, including 81Kr (half-life = 229,000 yr), 85Kr (11 yr), and 39Ar (269 yr), possess nearly ideal chemical and physical properties for studies of earth and environmental processes.
Fischer, T. P., Kennedy, B. M., Lu, Z. -T., Purtschert, R., Schlosser, P., Severinghaus, J. P., Smethie Jr., W. M., Solomon, D. K., Sturchio, N. C., Tanhua, T., Yokochi, R.   +10 more
core   +3 more sources