A radioactive sample at any instant has its disintegration ratye 5000 disintegrations per minute After 5 minutes , the rate is 1250 disintegration per Then , the decay constant (per minute) A0.4∈2 B0.2∈2 C0.1∈2 D0.8∈2Submit Question 2 - Select One Find the decay constant (per min...
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<p>To solve the problem, we need to determine the half-life of a radioactive sample given that its activity drops to one-third of its initial value in 80 minutes. We can use the relationship between activity, time, and half-life in radioactive decay.</p>
Observationally, kilonovae are astrophysical transients powered by the radioactive decay of nuclei heavier than iron, thought to be synthesized in the merger of two compact objects1–4. Over the first few days, the kilonova evolution is dominated by
Proximity sensors, radioactive sensors, and vision sensors are prime examples of invasive sensors that enable instant and accurate monitoring. Proximity sensors monitor the distance between the tool edge and the product [38,39]. Radioactive sensors have been used to measure tool wear [40,41]. ...
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The invention relates to a method of determining the dose of and instant of exposure to radioactive and/or ionising radiation by means of thermoluminescence. A thermoluminescent material of which the glow curve has at least two thermoluminescence peaks is used. For determining the overall dose, ...
In a therapeutic setting, myeloma-bearing mice received three consecutive intravenous administrations of a high (18.5 MBq) or a low radioactive dose (9.3 MBq) of 177Lu-DTPA-2F8 or an equal volume of vehicle solution. A dose-dependent tumour regression was observed, which translated ...
Chemomechanical modelling Compacted bentonite Reactive transport Radioactive waste repository Swelling pressure Engineered barrier 1. Introduction Effective diffusion coefficients in bentonite, and properties like swelling pressure or hydraulic conductivity are crucial for most engineered barrier systems of radioacti...
The radioactive signal of32P-RNAylated protein rS1 and32P–ADP-ribosylated rS1 did not change after treatment with HgCl2(which cleaves S-glycosides at Cys residues), NH2OH (which hydrolyses O-glycosides at Asp and Glu) (Extended Data Fig.4a) or recombinant enzyme ARH3 (which hydrolyses O...