scholarly journals Measurement of derivative of ion temperature using high spatial resolution charge exchange spectroscopy with space modulation optics

2008 ◽  
Vol 79 (5) ◽  
pp. 053506 ◽  
Author(s):  
K. Ida ◽  
Y. Sakamoto ◽  
M. Yoshinuma ◽  
S. Inagaki ◽  
T. Kobuchi ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Ion Temperature ◽  
Exchange Spectroscopy ◽  
Space Modulation

High time resolution ion temperature and rotation velocity measurements by charge exchange spectroscopy using three interference filters

1999 ◽  
Vol 70 (1) ◽  
pp. 372-374 ◽  
Author(s):  
J. S. Koog ◽  
A. Sakasai ◽  
Y. Koide ◽  
H. Shirai ◽  
Y. Kamada ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Time Resolution ◽  
Rotation Velocity ◽  
High Time ◽  
High Time Resolution ◽  
Ion Temperature ◽  
Velocity Measurements ◽  
Interference Filters ◽  
Exchange Spectroscopy

Ultra-fast charge exchange spectroscopy for turbulent ion temperature fluctuation measurements on the DIII-D tokamak (invited)

2012 ◽  
Vol 83 (10) ◽  
pp. 10D526 ◽  
Author(s):  
I. U. Uzun-Kaymak ◽  
R. J. Fonck ◽  
G. R. McKee
Keyword(s):  
Charge Exchange ◽  
Temperature Fluctuation ◽  
Ion Temperature ◽  
Fast Charge ◽  
Exchange Spectroscopy

Charge exchange spectroscopy system calibration for ion temperature measurement in KSTAR

2010 ◽  
Vol 81 (10) ◽  
pp. 10D740 ◽  
Author(s):  
Won-Ha Ko ◽  
Hyungho Lee ◽  
Dongcheol Seo ◽  
Myeun Kwon
Keyword(s):  
Temperature Measurement ◽  
Charge Exchange ◽  
Ion Temperature ◽  
System Calibration ◽  
Exchange Spectroscopy ◽  
Spectroscopy System

Charge exchange spectroscopy measurements of ion temperature and toroidal rotation in JET

1989 ◽  
Vol 29 (12) ◽  
pp. 2187-2197 ◽  
Author(s):  
H. Weisen ◽  
M. von Hellermann ◽  
A. Boileau ◽  
L.D. Horton ◽  
W. Mandl ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Ion Temperature ◽  
Toroidal Rotation ◽  
Exchange Spectroscopy

Improved charge exchange spectroscopy on the Joint European Torus for ion temperature and rotation velocity profiles

2006 ◽  
Vol 77 (10) ◽  
pp. 10E913 ◽  
Author(s):  
Yasmin Andrew ◽  
N. C. Hawkes ◽  
K. Crombe ◽  
JET EFDA Contributors
Keyword(s):  
Charge Exchange ◽  
Rotation Velocity ◽  
Velocity Profiles ◽  
Ion Temperature ◽  
Exchange Spectroscopy

Density Dependence of Ion Temperature Measured by Active Charge-Exchange Spectroscopy in ECRH Plasmas of the TJ-II Stellarator

2008 ◽  
Vol 54 (4) ◽  
pp. 962-969 ◽  
Author(s):  
J. M. Carmona ◽  
K. J. McCarthy ◽  
V. Tribaldos ◽  
R. Balbín
Keyword(s):  
Density Dependence ◽  
Charge Exchange ◽  
Ion Temperature ◽  
Exchange Spectroscopy

scholarly journals Исследование влияния тока плазмы на ионный теплоперенос в сферическом токамаке Глобус-М

2018 ◽  
Vol 44 (15) ◽  
pp. 100
Author(s):  
А.Ю. Тельнова ◽  
Г.С. Курскиев ◽  
И.В. Мирошников ◽  
Г.Ф. Авдеева ◽  
Н.Н. Бахарев ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Numerical Code ◽  
Spherical Tokamak ◽  
Ion Temperature ◽  
Plasma Component ◽  
Ion Plasma ◽  
Exchange Spectroscopy ◽  
Calculation Results ◽  
A Charge ◽  
Thermal Diffusivities

AbstractExperiments intended to study the dependence of the ion temperature on the plasma current were carried out on the Globus-M spherical tokamak. The ion temperature was measured at a few spatial points with the help of charge exchange spectroscopy and a charge exchange atom analyzer. On the basis of the experimental data, modeling with the use of the ASTRA numerical code was carried out and the thermal diffusivities for the ion plasma component were determined. The calculation results show that the ion behavior is similar to neoclassical.

High spatial resolution AEM observations of yttrium segregation in chromia scales grown on Co-45%Cr

1986 ◽  
Vol 44 ◽  
pp. 518-519
Author(s):  
K. Przybylski ◽  
A. J. Garratt-Reed ◽  
G. J. Yurek
Keyword(s):  
Spatial Resolution ◽  
Outer Surface ◽  
Maximum Concentration ◽  
High Spatial Resolution ◽  
Reactive Elements ◽  
Chromia Scales

The addition of so-called “reactive” elements such as yttrium to alloys is known to enhance the protective nature of Cr2O3 or Al2O3 scales. However, the mechanism by which this enhancement is achieved remains unclear. An A.E.M. study has been performed of scales grown at 1000°C for 25 hr. in pure O2 on Co-45%Cr implanted at 70 keV with 2x1016 atoms/cm2 of yttrium. In the unoxidized alloys it was calculated that the maximum concentration of Y was 13.9 wt% at a depth of about 17 nm. SIMS results showed that in the scale the yttrium remained near the outer surface.

Integration of Core-Edge Spectroscopy Methods for the Study of Polymers

1996 ◽  
Vol 54 ◽  
pp. 154-155
Author(s):  
E. G. Rightor
Keyword(s):  
Excited State ◽  
Polymer Blends ◽  
Gas Phase ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Electronic States ◽  
Core Electron ◽  
Bulk Solids ◽  
Development Application

Core edge spectroscopy methods are versatile tools for investigating a wide variety of materials. They can be used to probe the electronic states of materials in bulk solids, on surfaces, or in the gas phase. This family of methods involves promoting an inner shell (core) electron to an excited state and recording either the primary excitation or secondary decay of the excited state. The techniques are complimentary and have different strengths and limitations for studying challenging aspects of materials. The need to identify components in polymers or polymer blends at high spatial resolution has driven development, application, and integration of results from several of these methods.

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