Results 131 to 140 of about 4,697,162 (157)

The high-k poloidal scattering system for NSTX-U

Review of Scientific Instruments, 2018
An 8-channel, high-k poloidal far-infrared (FIR) scattering system is under development for the National Spherical Torus eXperiment Upgrade (NSTX-U). The 693 GHz poloidal scattering system replaces a 5-channel, 280 GHz high-k toroidal scattering system to study high-k electron density fluctuations on NSTX-U.
R. Barchfeld, C. W. Domier, Y. Ren, R. Ellis, P. Riemenschneider, N. Allen, R. Kaita, B. Stratton, J. Dannenberg, Y. Zhu, N. C. Luhmann   +10 more
openaire   +2 more sources

Massive Gas Injection Valve Development for NSTX-U

IEEE Transactions on Plasma Science, 2016
NSTX-U research will offer new insights by studying gas assimilation efficiencies for massive gas injection (MGI) from different poloidal locations using identical gas injection systems. In support of this activity, an electromagnetic MGI valve has been built and tested.
R. Raman, G. J. Plunkett, W.-S. Lay
openaire   +1 more source

The NSTX-U Digital Coil Protection System Autotester

2015 IEEE 26th Symposium on Fusion Engineering (SOFE), 2015
Included in the Upgrade to NSTX at Princeton University's Plasma Physics Laboratory, is the development of a Digital Coil Protection System (DCPS). This real-time system is the primary protection for the machine coils and structure of the NSTX-U vessel.
Gretchen Zimmer, John Dong, Ronald E. Hatcher   +2 more
openaire   +1 more source

Progress toward commissioning and plasma operation in NSTX-U

Nuclear Fusion, 2015
The National Spherical Torus Experiment-Upgrade (NSTX-U) is the most powerful spherical torus facility at PPPL, Princeton USA. The major mission of NSTX-U is to develop the physics basis for an ST-based Fusion Nuclear Science Facility (FNSF). The ST-based FNSF has the promise of achieving the high neutron fluence needed for reactor component testing ...
M. Ono, J. Chrzanowski, L. Dudek, S. Gerhardt, P. Heitzenroeder, R. Kaita, J.E. Menard, E. Perry, T. Stevenson, R. Strykowsky, P. Titus, A. von Halle, M. Williams, N.D. Atnafu, W. Blanchard, M. Cropper, A. Diallo, D.A. Gates, R. Ellis, K. Erickson, J. Hosea, R. Hatcher, S.Z. Jurczynski, S. Kaye, G. Labik, J. Lawson, B. LeBlanc, R. Maingi, C. Neumeyer, R. Raman, S. Raftopoulos, R. Ramakrishnan, A.L. Roquemore, S.A. Sabbagh, P. Sichta, H. Schneider, M. Smith, B. Stratton, V. Soukhanovskii, G. Taylor, K. Tresemer, A. Zolfaghari   +41 more
openaire   +1 more source

A study of X-divertor in NSTX-U with SOLPS simulations

Nuclear Fusion, 2018
The X-divertor (XD) geometry in NSTX-U is demonstrated, via SOLPS simulations, to perform better than the standard divertor (SD); in particular, it allows detachment at a lower upstream density and stabilizes the detachment front near the target, away from the main X-point. Consequently a stable detached operation becomes possible—the localization near
Zhong-Ping Chen, Mike Kotschenreuther, Swadesh Mahajan, Stefan Gerhardt   +3 more
openaire   +1 more source

Next Generation NSTX-U Magnetics Diagnostic Electronics

A new, modular, and expandable instrumentation system has been designed for the NSTX-U magnetic diagnostic system. The upgraded architecture, called the Analog Signal Processing (ASP) system, consists of two primary rack-mounted devices: a multi-slot signal processing chassis and a timing and control system.
Jacob Thweatt, Frank Hoffmann, Gerard deBlasi, Nathan Smith, Kenneth Kore, Westley Reese, Sean Hough, James Henderson, Yunisa Bakarr, Stefano Munaretto   +9 more
openaire   +1 more source

Engineering-Physical Model (GLOBSYS) for the Next STEP of the Globus-M Spherical Tokamak Program: Verification of Some Subsystems on Achieved and Predictable Data From Installations NSTX, NSTX-U, MAST, MAST-U, and ST40

Physics of Atomic Nuclei, 2022
V N Tanchuk, G S Kurskiev, E N Bondarchuk   +2 more
exaly  

Chirping ion cyclotron emission (ICE) on NSTX-U

Nuclear Fusion, 2021
E.D. Fredrickson, N.N. Gorelenkov, R.E. Bell, A. Diallo, B.P. LeBlanc, J. Lestz, M. Podestà, null the NSTX team   +7 more
openaire   +1 more source

The Motional Stark Effect Diagnostic for NSTX-U

2022
openaire   +1 more source

Modeling Delamination in NSTX-U Inner Leg Using “EKILL”

Fusion Science and Technology, 2021
Peter Titus, A. Brooks, H. Zhang
openaire   +1 more source