Results 21 to 30 of about 7,713 (173)

Activity concentrations and radiological hazard assessments of 226Ra, 232Th, 40K, and 137Cs in soil samples obtained from the Dongnam Institute of Radiological & Medical Science, Korea

open access: yesNuclear Engineering and Technology, 2023
The radioactivity concentration of environmental radionuclides was analyzed for soil and sand at eight locations within a radius of 255 m centered on the Dongnam Institute of Radiological & Medical Science (DIRAMS), Korea.
Jieun Lee   +8 more
doaj   +1 more source

Using of Organic or Inorganic Fertilizers to Grow Thai Jasmine Rice 105 in Soil with Natural Radioactivity (226Ra, 232Th and 40K); Transfer of Radioactivity to Roots [PDF]

open access: yesScience Technology and Engineering Journal (STEJ), 2020
This research study the radioactivity concentration of 226 Ra, 232Th and 40K using organic and inorganic fertilizers were successfully measured as gamma ray spectrometry technique with HPGe detector on Thai Jasmine rice 105 plant (root) and on ...
Chonlada Raikham, Papaporn Jantawongrit
doaj   +1 more source

Analysis of the 40K levels in soil using gamma spectrometry

open access: yesBrazilian Archives of Biology and Technology, 2005
Potassium-40 was determined in soil in an area with 40,000 m² situated in the western State of Pernambuco, Brazil. For radiometric measurements, the gamma spectrometry method with a high purity germanium (HPGe) detector was used.
José Araújo dos Santos Júnior   +4 more
doaj   +1 more source

Specific Activities of Natural Radionuclides and Annual Effective Dose Due to the Intake of Some Types of Children Powdered Milk Available in Baghdad Markets

open access: yesمجلة بغداد للعلوم, 2017
In this research the specific activity of natural radionuclides 226Ra, 232Th and 40K were determined by sodium iodide enhanced by thallium NaI(TI) detector and assessed the annual effective dose in Dielac 1 and 2 and Nactalia 1 and 2 for children of ...
Baghdad Science Journal
doaj   +3 more sources

METHODS OF THE GEOMORPHOMETRY, REMOTE SENSING AND GIS IN STUDY OF THE 40K RADIONUCLIDE DISTRIBUTION IN SOIL OF ARABLE SLOPES, COMPLICATED WITH EROSION NETWORK

open access: yesInterCarto. InterGIS, 2016
The 40K radioisotope is involved into the erosion processes on the arable slopes. Application of the very high resolution satellite images, GISs, geomorphometry methods and traditional agrochemical research techniques helped to identify the location of ...
L. N. Trofimetz, E. A. Panidi
doaj   +1 more source

Naturally occurring radionuclide transfer from soil to vegetables in some farmlands in Ghana and statistical analysis

open access: yesRadiation Protection and Environment, 2017
Distribution studies of natural radionuclides in soil, statistical analysis of activity concentrations, and transfer factors (TFs) from soil to the vegetables grown in some selected farming communities within the Greater Accra Region in Ghana were ...
Theophilus Adjirackor   +2 more
doaj   +1 more source

Positive parity states in 40K

open access: yesPhysics Letters B, 1969
Abstract Neutron and γay angular distributions, and γ-ray polarisation correlations have been measured with the reaction 40 Ar (p, nγ) 40 K . Positive parity states have been established at 1.644 MeV (0+), 1.959 MeV (2+), 2.261 MeV (3+) and 2.290 MeV (1+).
P.J. Twin, W.C. Olsen, E. Wong
openaire   +1 more source

Sigara tütününün doğal ve yapay radyoaktivitesinin belirlenmesi

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2016
Sigara tütünündeki doğal ve yapay radyoaktivite konsantrasyonları %20 rölatif verimli n-tipi HPGe gama spektrometre kullanılarak belirlenmiştir.226Ra, 232Th, 40K, 210Pb ve 137Csradyoaktivite konsantrasyonları ölçülmüştür.
Yusuf Ağuş
doaj   +1 more source

Detecting 40K geoneutrinos with LiquidO

open access: yes, 2019
From 25% to 70% of Earth’s internal heat budget is deemed to be generated by the radioactive decay of the so-called heat-producing elements (i.e. U, Th and K). Potassium, the only semi-volatile element among them, seems to show from 10% to 30% of its expected chondritic abundance, making thus uncertain any heat balance estimation. Two theories stand on
Andrea, Serafini   +7 more
openaire   +1 more source

Estatísticas de 40k+ sites do Ecossistema HTTPS no Brasil

open access: yesAnais da XIX Escola Regional de Redes de Computadores (ERRC 2021), 2021
Estudos recentes demonstram que apenas utilizar HTTPS não garante, necessariamente, que os usuários irão navegar de forma segura no site. Neste trabalho apresentamos estatísticas de 40.406 sites HTTPS dos blocos de IPs do Brasil. Os resultados apontam que apenas 11,01% dos sites analisados suportam a versão TLS 1.3, a mais atual e a única sem ...
Ströher, Débora Patrı́cia   +2 more
openaire   +2 more sources

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