Charge exchange recombination spectroscopy measurements of DIII-D poloidal rotation with poloidal asymmetry in angular rotation

2021 ◽  
Vol 92 (4) ◽  
pp. 043518
Author(s):  
C. Chrystal ◽  
S. R. Haskey ◽  
K. H. Burrell ◽  
B. A. Grierson ◽  
C. S. Collins
Keyword(s):  
Charge Exchange ◽  
Angular Rotation ◽  
Poloidal Rotation

scholarly journals Calibration of the charge exchange recombination spectroscopy diagnostic for core poloidal rotation velocity measurements on JET

2004 ◽  
Vol 75 (10) ◽  
pp. 3452-3454 ◽  
Author(s):  
K. Crombé ◽  
Y. Andrew ◽  
C. Giroud ◽  
N. C. Hawkes ◽  
A. Murari ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Rotation Velocity ◽  
Velocity Measurements ◽  
Poloidal Rotation

First H+ Charge-Exchange Images in the Stim.

1976 ◽  
Vol 34 ◽  
pp. 504-505
Author(s):  
Wm. H. Escovitz ◽  
T. R. Fox ◽  
R. Levi-Setti
Keyword(s):  
Charge Exchange ◽  
Neutral Component ◽  
Channel Electron Multiplier ◽  
Electron Multiplier ◽  
Neutral Particles ◽  
Charged Beam ◽  
Scanning Transmission ◽  
Contrast Mechanism ◽  
Ion Microscopy ◽  
Beam Component

Charge exchange, the neutralization of ions by electron capture as the ions traverse matter, is a well-known phenomenon of atomic physics which is relevant to ion microscopy. In conventional transmission ion microscopes, the neutral component of the beam after it emerges from the specimen cannot be focused. The scanning transmission ion microscope (STIM) enables the detection of this signal to make images. Experiments with a low-resolution 55 kV STIM indicate that the charge-exchange signal provides a new contrast mechanism to detect extremely small amounts of matter. In an early version of charge-exchange detection (fig. 1), a permanent magnet installed between the specimen and the detector (a channel electron multiplier) sweeps the charged beam component away from the detector and allows only the neutrals to reach it. When the magnet is removed, both charged and neutral particles reach the detector.

SPECTRUM OF CHARGE EXCHANGE NEUTRALS FROM ROTATING PLASMA

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-503-C7-504
Author(s):  
M. P. Ryutova
Keyword(s):  
Charge Exchange

PHOTONS SHEDDING LIGHT UPON CHARGE EXCHANGE PROCESSES IN COLLISIONS OF 24 keV O3+ WITH ATOMIC HYDROGEN

1989 ◽  
Vol 50 (C1) ◽  
pp. C1-349-C1-352
Author(s):  
R. HOEKSTRA ◽  
K. BOORSMA ◽  
F. J . de HEER ◽  
R. MORGENSTERN
Keyword(s):  
Charge Exchange ◽  
Atomic Hydrogen ◽  
Exchange Processes

CONTRIBUTIONS FROM ION-ATOM CHARGE EXCHANGE COLLISIONS TO THE CVI LYMAN INTENSITIES IN THE JET TOKAMAK

1989 ◽  
Vol 50 (C1) ◽  
pp. C1-329-C1-335
Author(s):  
M. MATTIOLI ◽  
N. J. PEACOCK ◽  
H. P. SUMMERS ◽  
B. DENNE ◽  
N. C. HAWKES
Keyword(s):  
Charge Exchange
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