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Title: Functional form for plasma velocity in a rapidly rotating tokamak discharge

A recently developed technique using charge exchange spectroscopy determines the ion poloidal rotation in tokamak plasmas from the poloidal variation in the toroidal angular rotation speed. The basis for this technique is the functional form for the plasma velocity calculated from the equilibrium equations. The initial development of this technique utilized the functional form determined for conditions where the ion toroidal rotation speed is much smaller than the ion thermal speed. There are cases, however, where the toroidal rotation can be comparable to the ion thermal speed, especially for high atomic number impurities. Furthermore, the present paper extends the previous analysis to this high rotation speed case and demonstrates how to extract the poloidal rotation speed from measurements of the toroidal angular rotation speed at two points on a flux surface.
Authors:
 [1] ;  [2]
  1. General Atomics, San Diego, CA (United States)
  2. Univ. of California, San Diego, CA (United States)
Publication Date:
Grant/Contract Number:
FC02-04ER54698; FG02-07ER54917
Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 21; Journal Issue: 7; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Research Org:
General Atomics, San Diego, CA (United States)
Sponsoring Org:
USDOE Office of Nuclear Energy (NE)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
OSTI Identifier:
1354833

Burrell, Keith H., and Chrystal, C. olin. Functional form for plasma velocity in a rapidly rotating tokamak discharge. United States: N. p., Web. doi:10.1063/1.4891351.
Burrell, Keith H., & Chrystal, C. olin. Functional form for plasma velocity in a rapidly rotating tokamak discharge. United States. doi:10.1063/1.4891351.
Burrell, Keith H., and Chrystal, C. olin. 2014. "Functional form for plasma velocity in a rapidly rotating tokamak discharge". United States. doi:10.1063/1.4891351. https://www.osti.gov/servlets/purl/1354833.
@article{osti_1354833,
title = {Functional form for plasma velocity in a rapidly rotating tokamak discharge},
author = {Burrell, Keith H. and Chrystal, C. olin},
abstractNote = {A recently developed technique using charge exchange spectroscopy determines the ion poloidal rotation in tokamak plasmas from the poloidal variation in the toroidal angular rotation speed. The basis for this technique is the functional form for the plasma velocity calculated from the equilibrium equations. The initial development of this technique utilized the functional form determined for conditions where the ion toroidal rotation speed is much smaller than the ion thermal speed. There are cases, however, where the toroidal rotation can be comparable to the ion thermal speed, especially for high atomic number impurities. Furthermore, the present paper extends the previous analysis to this high rotation speed case and demonstrates how to extract the poloidal rotation speed from measurements of the toroidal angular rotation speed at two points on a flux surface.},
doi = {10.1063/1.4891351},
journal = {Physics of Plasmas},
number = 7,
volume = 21,
place = {United States},
year = {2014},
month = {7}
}