In this study, electrical-nuclear reduplication was modeled by the similarity of decay equations with corresponding circuit equations to find an equivalent circuit for decay chain of radon-222. Each step was implemented along with the corresponding geometric diagram through a reduplication process in ...
The application of a two-dimensional eddy diffusion-decay model to profiles obtained in the center and on the margins of San Nicolas Basin produces a better fit than is found using a one-dimensional vertical eddy diffusivity. The two-dimensional model for San Nicolas Basin predicts a vertical ...
During the decay process, alpha, beta, and gamma radiation are released. Alpha particles can travel only a short distance and cannot travel through your skin. Beta particles can penetrate through your skin, but they cannot go all the way through your body. Gamma radiation can go all the way...
In the absence of any exchange of air accumu- lated inside the cave, equilibrium is established between exhalation of 222Rn formed in limestones to the cave air and the process of natural alpha radioactive transformation of 222Rn resulting in its decay and the formation of the isotope 218Po...
Uranium ore dust appeared to have little influence on the tumorigenic process. The incidence of lesions was related to total exposure time, expressed as cumulative WLM. The different equilibrium levels of radon and radon decay products had no specific effect.These studies confirmed that radon and ...
Radon (222Rn) is a radioactive element with a half-life of 3.82 days, formed in the Earth’s Crust by the radioactive decay of 226Ra in the 238U decay series. Faults and fractures are preferential migration pathways for radon gas and carrier gases (CO2), from the deep layers of the ...
The distribution of lead-210 which enters the oceans subsequent to its production in the atmosphere by radon-222 decay, shows an increase with depth in sea... Rama,M Koide,ED Goldberg - 《Science》 被引量: 140发表: 1961年 Sensitivity of Global Modeling Initiative chemistry and transport model...
Radon (referring to222Rn throughout the text) is a naturally occurring radioactive noble gas with a half-life of 3.8 days. It is the decay product of radium-226 in the uranium-238 radioactive decay chain. Due to its radioactive decay, noble character, and omnipresence in nature, radon ha...
There are three natural isotopes of radon: 219Rn with T1/2 = 3.96 s, 220Rn—T1/2 = 56.6 s and 222Rn—T1/2 = 3823 days. All the natural radon isotopes are alpha-decay radionuclides. With regard to the half-life period, only 222Rn is important in water. 222Rn is the daughter of...
The application of a two-dimensional eddy diffusion-decay model to profiles obtained in the center and on the margins of San Nicolas Basin produces a better fit than is found using a one-dimensional vertical eddy diffusivity. The two-dimensional model for San Nicolas Basin predicts a vertical ...