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In hydrodynamics shocks are caused by steep changes in pressure over short periods of time. In ICF in general, pressure is applied during ablation (the reaction force you mention). This ablation pressure is related to the driver (e.g., laser intensity). For example, in direct-drive ICF, the ablation pressure scales as $I^{2/3}$, where $I$ is the laser ...


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Could anyone explain why the D+T inside the pellet is in two distinct regions? I assume you mean why is it in both vapor form (in the center) and solid (ice) form (layered in the shell). This is coupled to your second question regarding the lower density in the center. The general idea underlying ICF is to set up a hot-spot in the center of the ...


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This is a nice idea that has been studied thoroughly, and continues to being studied. You are talking about a type of sub-critical reactors referred to as Accelerator Driven Systems (ADS). Here is a nice review Review:Basics of accelerator driven subcritical reactors, where references to previous studies are given. For modern advances you might like to check ...


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For a fission chain reaction to spontaneously happen in uranium there are some requirements to be fulfilled. A) there should be at least 4% U-235 in the mix of uranium isotopes. B) there should be a moderator to decrease the energy of the neutrons which result from the fission of a uranium core. 2 billion years ago the percentage of U-235 was large ...


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There isn't really a difference between "natural" or "artificial" reactions. All reactions are just "things that can happen". Some things only happen in certain circumstances, and those circumstances may be very unlikely to occur without being specifically engineered, but there is no reason in principle why they could not happen naturally. There is evidence ...


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If you're in the pool the pressure wave could crush you depending on strength of blast. Water can't compress. So there's a two fold issue to entertain your idea, heat and pressure. Radiation will be your next concern if you survive the initial blast.



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