Charge-Exchange Excitation and cw Oscillation in the Zinc-Ion Laser

1969 ◽  
Vol 23 (7) ◽  
pp. 363-367 ◽  
Author(s):  
R. C. Jensen ◽  
G. J. Collins ◽  
W. R. Bennett
Keyword(s):  
Charge Exchange ◽  
Zinc Ion ◽  
Ion Laser

Role of charge exchange in the zinc ion laser

1968 ◽  
Vol 4 (5) ◽  
pp. 356-356 ◽  
Author(s):  
R. Jensen ◽  
W. Bennett
Keyword(s):  
Charge Exchange ◽  
Zinc Ion ◽  
Ion Laser

LOW‐NOISE cw HOLLOW‐CATHODE ZINC‐ION LASER

1971 ◽  
Vol 18 (2) ◽  
pp. 50-51 ◽  
Author(s):  
R. C. Jensen ◽  
G. J. Collins ◽  
W. R. Bennett
Keyword(s):  
Hollow Cathode ◽  
Zinc Ion ◽  
Low Noise ◽  
Ion Laser

ERRATUM: Excitation Mechanisms in the Zinc Ion Laser

1971 ◽  
Vol 19 (4) ◽  
pp. 122-122 ◽  
Author(s):  
G. J. Collins ◽  
R. C. Jensen ◽  
W. R. Bennett
Keyword(s):  
Zinc Ion ◽  
Ion Laser ◽  
Excitation Mechanisms

EXCITATION MECHANISMS IN THE ZINC ION LASER

1971 ◽  
Vol 18 (7) ◽  
pp. 282-284 ◽  
Author(s):  
G.J. Collins ◽  
R.C. Jensen ◽  
W.R. Bennett
Keyword(s):  
Zinc Ion ◽  
Ion Laser ◽  
Excitation Mechanisms

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.

A confocal laser scanning microscope for fluorescence and reflection at video rates

1989 ◽  
Vol 47 ◽  
pp. 134-135
Author(s):  
P.M. Houpt ◽  
A. Draaijer
Keyword(s):  
Light Source ◽  
Laser Scanning ◽  
Focal Point ◽  
Confocal Laser Scanning Microscope ◽  
Confocal Laser ◽  
Point Light Source ◽  
Volume Of Interest ◽  
Ion Laser ◽  
Point Light ◽  
Point Detector

In confocal microscopy, the object is scanned by the coinciding focal points (confocal) of a point light source and a point detector both focused on a certain plane in the object. Only light coming from the focal point is detected and, even more important, out-of-focus light is rejected.This makes it possible to slice up optically the ‘volume of interest’ in the object by moving it axially while scanning the focused point light source (X-Y) laterally. The successive confocal sections can be stored in a computer and used to reconstruct the object in a 3D image display.The instrument described is able to scan the object laterally with an Ar ion laser (488 nm) at video rates. The image of one confocal section of an object can be displayed within 40 milliseconds (1000 х 1000 pixels). The time to record the total information within the ‘volume of interest’ normally depends on the number of slices needed to cover it, but rarely exceeds a few seconds.

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
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