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Improved profile fitting and quantification of uncertainty in experimental measurements of impurity transport coefficients using Gaussian process regression
TLDR
The need to fit smooth temperature and density profiles to discrete observations is ubiquitous in plasma physics, but the prevailing techniques for this have many shortcomings that cast doubt on the statistical validity of the results. Expand
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Control flow graph modifications for improved RF-based processor tracking performance
TLDR
We describe an approach to this problem using externally observable multi-band radio frequency (RF) measurements to make inferences about a program’s execution. Expand
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Recent results from the HIT-SI experiment
New understanding and improved parameters have been achieved on the Helicity Injected Torus with Steady Inductive helicity injection current drive (HIT-SI) experiment. The experiment has aExpand
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Observability Properties of Colored Graphs
TLDR
A colored graph is a directed graph in which nodes or edges have been assigned colors that are not necessarily unique. Expand
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Optimal sensor control for fast target detection in hyperspectral imagery
TLDR
This paper introduces algorithms for optimal wavelength1 selection (OWLS) for fast scanning of chemical targets on surfaces in the presence of unknown interferent contaminants using active IR spectroscopy. Expand
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Nonlinear gyrokinetic simulations of the I-mode high confinement regime and comparisons with experimenta)
For the first time, nonlinear gyrokinetic simulations of I-mode plasmas are performed and compared with experiment. I-mode is a high confinement regime, featuring energy confinement similar toExpand
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Non-local heat transport in Alcator C-Mod ohmic L-mode plasmas
Non-local heat transport experiments were performed in Alcator C-Mod Ohmic L-mode plasmas by inducing edge cooling with laser blow-off impurity (CaF2) injection. The non-local effect, a cooling ofExpand
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PSFC / JA-1762 On the ρ * scaling of intrinsic rotation in C-Mod plasmas with edge transport barriers
Changes in the core intrinsic toroidal rotation velocity fo llowing Lto Hand Lto I-mode transitions have been investigated in Alcator C-M od tokamak plasmas. The magnitude of the co-current rotationExpand
Evidence and modeling of turbulence bifurcation in L-mode confinement transitions on Alcator C-Mod
Analysis and modeling of rotation reversal hysteresis experiments show that a single turbulent bifurcation is responsible for the Linear to Saturated Ohmic Confinement (LOC/SOC) transition andExpand
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