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Search results for Monte Carlo simulations

Space Exploration Jul 1, 2019

How shiny are near-Earth objects?

Near-Earth objects (NEOs) are small solar system bodies whose orbits sometimes bring them close to the Earth. NEOs are consequently potential collision threats, but scientists are also interested in them because they offer ...

Software Jun 26, 2019

Monte Carlo simulations for neutron experiments

Achieving a good signal-to-background ratio in neutron scattering experiments is a crucial factor in instrument and sample environment design. However, in current Monte Carlo simulation software, not all neutron interactions ...

General Âé¶¹ÒùÔºics May 27, 2019

Direct measurement of the cosmic-ray proton spectrum with the CALET on the ISS

Recent advances in the observation of high-energy radiations, including X-rays and gamma-rays, have unveiled many high-energy aspects of the universe. To achieve a complete understanding of these radiations, however, researchers ...

General Âé¶¹ÒùÔºics Apr 23, 2019

Controlling instabilities gives closer look at chemistry from hypersonic vehicles

While studying the chemical reactions that occur in the flow of gases around a vehicle moving at hypersonic speeds, researchers at the University of Illinois used a less-is-more method to gain greater understanding of the ...

General Âé¶¹ÒùÔºics Apr 5, 2019

Getting a big look at tiny particles

At the turn of the 20th century, scientists discovered that atoms were composed of smaller particles. They found that inside each atom, negatively charged electrons orbit a nucleus made of positively charged protons and neutral ...

Quantum Âé¶¹ÒùÔºics Apr 1, 2019

Using QMC simulations to examine the dynamic spin structure of planar coupled spin ladders

Recent polarized inelastric neutron scattering experiments have identified the amplitude (i.e. Higgs) mode in C9H18N2CuBr4, a 2-D, near-quantum-critical spin ladder compound that exhibits a weak easy-axis exchange anisotropy. ...

General Âé¶¹ÒùÔºics Mar 13, 2019

Resistive plate chambers as neutron detectors

Resistive Plate Chambers (RPCs) are being developed as detectors for neutrons as part of SINE2020. Luís Margato, Andrey Morozov and Alberto Blanco from LIP Coimbra in Portugal have been working on the project. Here is what ...

Space Exploration Feb 20, 2019

Ingredients for water could be made on surface of moon, a chemical factory

When a stream of charged particles known as the solar wind careens onto the Moon's surface at 450 kilometers per second (or nearly 1 million miles per hour), they enrich the Moon's surface in ingredients that could make water, ...

Astronomy Feb 6, 2019

Keeping a crew of 500 alive for the journey to another star

There's no two-ways about it, the Universe is an extremely big place! And thanks to the limitations placed upon us by Special Relativity, traveling to even the closest star systems could take millennia. As we addressed in ...

Optics & Photonics Feb 4, 2019

Optical coherence tomography (OCT) – longer wavelengths can improve imaging depths

Optical coherence tomography (OCT) is a light-based imaging technique currently used in clinical diagnostics to examine organs in vivo. The technique uses interferometry; in which light reflected from an examined object combines ...

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