Results 21 to 30 of about 75,113 (187)
Separations, 2023 Long-lived fissiogenic technetium, 99Tc (half-life, 2.11 × 105 yrs), is a byproduct of the 235U and 239Pu fission in nuclear reactors and is a major component in nuclear waste.
M. Ferdous Alam +4 more
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44Ti radioactivity in young supernova remnants: Cas A and SN 1987A [PDF]
New Astron.Rev. 48 (2004) 69-73, 2003 We investigate radioactivity from the decay sequence of 44Ti in young supernova remnants (SNRs), Cassiopeia A (Cas A) and SN 1987A. It is shown by a linear analysis that ionization of 44Ti, a pure electron capture decay isotope, affects the radioactivity contradistinctively in these two SNRs: Ionization of 44Ti to H-like and He-like states enhances its
arxiv +1 more source
Radiation Protection and Environment, 2022 Equilibrium status among 226Ra and radon daughters was studied in soil samples around Rawatbhata, Rajasthan. It was found that the increase in radioactivity of 214Bi (radon daughter) due to complete radon buildup in the sealed container is within 15 ...
Ajay Kumar Gocher +4 more
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Generation of nanoparticles in the concentrated energy (laser beam) and gas flow
Aviation, 2004 The method of generation and selection of small nanoparticles in the airflow is considered in this paper. To melt the material (stainless steel), a concentrated energy flow – a pulsed solid‐state laser beam – was used.
Arūnas Severas Amulevičius +3 more
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Radioactivities and nucleosynthesis in SN 1987A [PDF]
New Astron.Rev. 46 (2002) 487-492, 2001 The nucleosynthesis and production of radioactive elements in SN 1987A are reviewed. Different methods for estimating the masses of 56Ni, 57Ni, and 44Ti are discussed, and we conclude that broad band photometry in combination with time-dependent models for the light curve gives the most reliable estimates.
arxiv +1 more source
Discovery of Radioactivity [PDF]
Nature, 1948 I AM surprised that Prof. Becquerel should have read into a passing reference to his distinguished father‘s work, in my review of Prof. Gamow‘s book, any suggestion that the discovery of radioactivity was in any way "fortuitous". No such suggestion was intended.
J, BECQUEREL, J A, CROWTHER
openaire +3 more sources
Nuclear Engineering and Technology, 2022 In 1993 the University of Extremadura initiated the design, construction and management of the Radiological Alert Network of Extremadura (RAREx). The goal was to acquire reliable near-real-time information on the environmental radiological status in the ...
María Ángeles Ontalba +6 more
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Time changes of dose equivalent rate above the soil surface as indication of natural attenuation processes [PDF]
Proceedings of the International Association of Hydrological Sciences, 2019 Eight sites in the Fukushima contaminated area were surveyed for long-term changes in D-shuttle dose equivalent rate above the soil surface during 2015–2017. D-shuttle readings in most cases decreased faster than if due to radioactive decay only.
A. V. Konoplev +2 more
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Nuclear Engineering and Technology, 2023 Continuous monitoring of radioactive substances over a prolonged duration can yield crucial insights into the levels of radiation exposure through inhalation, both in the vicinity of nuclear facilities and/or general environments.
Da-Young Gam +4 more
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Journal of Economic Geology, 2021 Introduction The Neyshabour Turquoise Mine is located at 55 km North West of Neyshabour in latitude of E58◦, 23ꞌꞌ and longitude of N36◦, 23ꞌꞌ. This area is situated at the Cenozoic continental magmatic arc in the north of Sabzevar ophiolite sequence and
Alireza Mazloumi Bajestani, Akram Fahim
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