Abstract
Today, mass nuclear weapons and reactor plants are becoming more prominent. However, current methods of radiation shielding are not viable due to heavy cost and ineffective means of weakening photon momentum. Therefore, it becomes necessary to design structures resistant to the behavior of radiation from exposing to human life. Specifically, 280 computational experiments were conducted in a SPENVIS environment utilizing Multi-Layered Shielding Simulation (MULASSIS) and Geant4 Radiation Analysis for Space (GRAS) on multiple shielding models. These thirteen models tested against nuclear, artificially-generated incident particles under single and multi-ray analyses with four angular photon distributions in comparison to SHEILDOSE, a current standard for cosmic radiation shielding developed by the European Space Agency. These designs using stainless steel, lead, slightly-radioactive bismuth, and lithium-hydride prevented over 99% of particle detection compared to SHIELDOSE, which conversely increased the neutron-energy dose by over 700%, and insufficiently reduced high-energy gamma ray penetration. Per kilogram, my model is 144 times cheaper and only a small fraction of the thickness of either SHIELDOSE or metal foams. Thus, the potential of enhanced nuclear plants, further space exploration, and an overall safer approach to utilizing or preventing exposure to atomic particles such as with multi-disaster protection buildings can become more readily available, thus saving millions of lives that are in impending danger.
Highlights
There was over a 99% dosage reduction throughout D1, consisting of lead, bismuth, and lithium-hydride, and D2, consisting of lead, bismuth, lithium-hydride, and stainless steel (SS) in order to correlate this data in use toward previous data on the strength and durability of SS in case of external damage
Because of the vast difference in the ionization of atoms along with particle behavior at various photon transmission levels, an increased dosage can be seen in certain layers for all of the combined experiments placed onto one graph
To start, continuing from last year, my unique two-part base isolator, consisting of a laminated rubber bearing and high damping rubber bearing part connected via plastic compression spring shock absorbers, was able to resist over 50% of the inputted gravitational acceleration and decrease at a rapid pace as shown in Graph 1
Summary
The overarching goal in these computational simulations would be to model a novel layered structure that is effective against radioactive photon transmissions, but is inexpensive and will take up a smaller volume than current methods in radiation shielding. Other objectives include: Observing the angular distribution of a photon as a constituent of the particle’s behavior within the layered system as this idea has been rarely observed in modern-day shielding simulations. Testing both high and low mono-energetic, particle-based, and Earth-level intensities in order to observe particle behavior, and the increasing or decreasing voltage between layers. Obtaining at least a 95% mega electron-volt [MeV, equivalent to 1.602 x 10E-13 joules] energy reduction over the complete layered system and having a greater MeV reduction than the aluminumbased model used by the European Space Agency
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