New type of compact electrostatic energy analyzer adequate to measurement of charge exchange neutral particles with a low counting yield

1999 ◽  
Vol 70 (1) ◽  
pp. 845-848 ◽  
Author(s):  
T. Goto ◽  
K. Ishii ◽  
Y. Katsuki ◽  
N. Kikuno ◽  
Y. Goi ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Electrostatic Energy ◽  
Energy Analyzer ◽  
Neutral Particles ◽  
New Type ◽  
Counting Yield

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.

New type of trap charge-exchange wave in an alternating external field

1993 ◽  
Vol 23 (9) ◽  
pp. 793-795
Author(s):  
A V Dugin ◽  
Boris Ya Zel'dovich
Keyword(s):  
External Field ◽  
Charge Exchange ◽  
Trap Charge ◽  
New Type

Electric field studies of a 2 MeV electrostatic energy analyzer

1990 ◽  
Vol 61 (10) ◽  
pp. 2955-2957 ◽  
Author(s):  
P. E. McLaren ◽  
K. A. Connor ◽  
J. F. Lewis ◽  
R. L. Hickok ◽  
T. P. Crowley ◽  
...  
Keyword(s):  
Electric Field ◽  
Field Studies ◽  
Electrostatic Energy ◽  
Energy Analyzer

Momentum losses by charge exchange with neutral particles in H-mode discharges at JET

2011 ◽  
Vol 53 (6) ◽  
pp. 065017 ◽  
Author(s):  
T W Versloot ◽  
P C de Vries ◽  
C Giroud ◽  
M Brix ◽  
M G von Hellermann ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Neutral Particles

Modified biased split detectors for the HIBP electrostatic energy analyzer

2001 ◽  
Vol 72 (1) ◽  
pp. 575-578 ◽  
Author(s):  
I. S. Nedzelskiy ◽  
N. B. Dreval ◽  
S. M. Khrebtov ◽  
A. D. Komarov ◽  
A. S. Kozachok ◽  
...  
Keyword(s):  
Electrostatic Energy ◽  
Energy Analyzer
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