MIT Department: Nuclear Science and Engineering
Undergraduate Institution: Florida State University
Faculty Mentor: Dennis Whyte
Research Supervisor: Kevin Woller
My name is Christopher Reis and I am a Trinidad born Mechanical Engineering student at Florida State University interested in research relating to the science and engineering of clean and renewable energy, specifically Fusion Power. I am currently working at the National High Magnetic Field Laboratory’s Applied Superconductivity Center on a project which seeks to identify plausible bronze routes that facilitate Niobium 3 Tin Superconducting Radio Frequency cavity technology optimization. I am a former national swimmer for Trinidad and Tobago, enjoy reading about physics, history, entrepreneurship and dieting, am an avid weightlifter and above all else just curious about things!
2018 Research Abstract
Ion Beam Analysis of surface impurities on Molybdenum exposed in the Experimental Advanced Superconducting Tokamak (E.A.S.T.)
Christopher Reis1, Kevin Woller2 and Dennis G. Whyte3
1Department of Mechanical Engineering, Florida State University – Tallahassee
2,3 Department of Nuclear Science & Engineering, Massachusetts Institute of Technology
The tokamak has the potential of being the first fusion reactor design that will achieve a breakeven reaction and is understandably subject to massive temperatures and pressures which cause deterioration. The walls of the chamber are therefore made of high melting point, slow eroding high-Z materials with low-Z treatments that boost plasma performance and track degradation via depth markers. Our study looked at specially prepared Molybdenum (TZM) samples which were given Lithium treatments at specific conditions to understand bulk material degradation when exposed to plasmas in the EAST. Elastic recoil detection and Rutherford backscattering spectroscopy quantified the Lithium on the substrates to reasonable consistency with what L.A. Kesler previously found with NRA, confirmed that deuterium appeared on samples exposed to the plasma and revealed extraneous elements on the surface in the refined spectra. Energy-dispersive X-ray spectroscopy was used to fine-tune this result, recognizing in addition Tungsten, Iron and Aluminum as impurities. Control samples showed that these impurities seemed to be present across the board, indicating fault in sample preparation as opposed to contamination from Plasma exposure. The continued work in the material science of reactor chambers will prove crucial as the world progresses toward breakeven burning plasma fusion reactors.