Analyzing White Pupil Échelle Spectrographs via Ray Tracing Simulation

Caty Fairclough January 10, 2018

11 light-years away from our solar system, an exoplanet called Ross 128 b orbits a red dwarf star. This planet has the potential to support life and is the second-closest temperate planet discovered, with a surface temperature that might be similar to Earth’s. Astronomers detected Ross 128 b by using data from an échelle spectrograph called HARPS. To further advance the search for Earth-mass exoplanets, we can improve the sensitivity of échelle spectrographs using the COMSOL Multiphysics® software.

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Caty Fairclough January 5, 2018

Steam reformers are commonly used for power and energy generation processes. To accurately analyze the performance of a steam reformer design, you need to be able to couple mass, energy, and flow equations. Using the COMSOL Multiphysics® software, you can set up a model of a steam reformer that represents its real-world behavior and operating conditions.

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Caty Fairclough December 27, 2017

When looking through scientific papers, it’s common to see colorful results. Although aesthetically pleasing to some, these results can be difficult to interpret for engineers with color vision deficiency (CVD). You may think that presenting results in grayscale could help, but humans are less able to discern between different shades of gray. So what’s the best option here?

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Caty Fairclough December 25, 2017

Ernst Ruska was an electrical engineer who earned a Nobel Prize in Physics in 1986. During his lifetime, he advanced the field of electron optics and developed the first electron microscope, enabling scientists to study objects too small to be observed with light microscopes.

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Caty Fairclough December 21, 2017

You’re standing in a lab full of beakers containing different colored liquids. While it may look like something out of a cartoon, this is a lab for researching vanadium redox flow batteries (VRFBs). Unlike conventional batteries, the chemical energy in VRFBs is contained in liquid electrolytes that are stored in external tanks and pumped through the cell to convert to or from electrical energy. By advancing VRFB designs, engineers can improve grid energy storage and the reliability of renewable energy.

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Caty Fairclough December 20, 2017

Creating new physics interfaces that you can save and share, modifying the underlying equations of a model, and simulating a wider variety of devices and processes: These are just a few ways you can benefit from the equation-based modeling capabilities of the COMSOL Multiphysics® software.

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Caty Fairclough December 12, 2017

It’s a bird, it’s a plane, it’s…the future of data sharing? Satellites orbiting Earth have the potential to revolutionize how we collect and share information. Instead of wired or wireless data networks, satellites could form the basis of an Internet of Space (IoS) to connect even the most remote locations.

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Caty Fairclough December 8, 2017

Within mass spectrometers, plasmas are often used to ionize a sample and an inert background gas. Before the ions produced in the plasma are sent into the mass filter, which determines the sample’s chemical composition, they must be focused into a beam with a suitably small radius. One way to focus ions is with an ion funnel. Focusing ions is a critical stage of the overall design, so it’s important to have a fundamental understanding of the funnel’s operating principles.

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Caty Fairclough November 29, 2017

You’re driving on the highway as an ambulance goes by, siren blaring. After the ambulance passes your car, you notice that the pitch of the siren suddenly drops. This happens due to the Doppler effect, which is named after physicist and mathematician Christian Doppler.

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Caty Fairclough November 23, 2017

Throughout his lifetime, Johannes Diderik van der Waals worked toward increasing our understanding of liquids and gases. With his groundbreaking work, he made a name for himself in molecular science and earned a Nobel Prize in Physics.

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Caty Fairclough November 15, 2017

Einzel lenses are used to focus charged particle beams in cathode ray tubes (CRTs). To properly analyze an einzel lens, we need to study the charged particles in the lens subject to appropriate electrical excitation. Here, we discuss one such example that uses the Particle Tracing Module, an add-on product to the COMSOL Multiphysics® software.

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