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The best way to differnciate is to look at the count-rate vs time graph. Random nature of radioactivity is indicated by the fluctuation of the count-rate. Whereas, spontaneous means that the process of radioactivity is not dependent upon any external environmental conditions like temperature, pressure, magnetic/electric field. For example: Plot a count rate ...


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THe U238 nucleus is unstable and does undergo "ordinary" radioactive decay. For a U238 nucleus to undergo fission you need to provide the nucleus with something akin to an activation energy of about 7 MeV. One model is that the nucleus is like a liquid drop and adding a neutron can make the drop oscillate so much that it breaks up into two smaller pieces ...


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Disclaimer: I've never done the particular class of measurements you ask about, but I have done other low raw-rate, precision measurements (neutrino mixing and weak form-factors). The focus of experimental work for low count rates is multi-pronged: Maximize the quantity of data. For counting experiments the raw fractional statistical uncertainty goes by ...


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Neutrons and protons are hadrons and are identified as an isotopic spin 1/2 hadron called baryon. There are many hadrons, pions, kaons, detas, etc , and one of the quantum numbers that separates them is the baryon number. Protons and neutrons each have baryon number 1. Thus a neutron turning into a proton does not change the baryon number. Isobaric means ...


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Standard way to evaluate the risk associated with eating the contaminated food is to start with the ingested activity (Bq) and then estimate the effective dose using the conversion coefficients. Many parameters must be considered in this calculation- for instance the age of the guy who eat such food, chemical form of the radionuclide... Talking about the ...


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Radioactive materials are studied in bulk matter. The electron that left with beta decay will become part of the conduction band electrons for the lattice the atom is in, and another electron will be drawn in very fast from the conduction band.. To remain an ion the atom should be isolated from bulk matter, and usually experiments are done on enough bulk ...


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Radioactivity occurs (with the exception of k-capture in which the nucleus captures an orbiting electron) inside the nucleus of atoms, not in the electron shells. Yes, the product has one extra proton, and thus is now a different element, jumping up one in the Periodic Table. No nucleus is electrically neutral. Whether or not an atom is an ion has nothing to ...



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