Interaction of plasma jets produced from pinch plasma with neutral atoms in order to achieve an effective charge exchange table top X-laser

1997 ◽  
Author(s):  
A. Engel ◽  
R. Lebert ◽  
K. N. Koshelev ◽  
Yu. V. Sidelnikov ◽  
S. S. Churilov ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Effective Charge ◽  
Plasma Jets ◽  
Neutral Atoms ◽  
Pinch Plasma

scholarly journals Titan's exosphere and its interaction with Saturn's magnetosphere

2008 ◽  
Vol 367 (1889) ◽  
pp. 743-752 ◽  
Author(s):  
Iannis Dandouras ◽  
Philippe Garnier ◽  
Donald G Mitchell ◽  
Edmond C Roelof ◽  
Pontus C Brandt ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Remote Sensing ◽  
Charge Exchange ◽  
Mass Spectrometer ◽  
Upper Atmosphere ◽  
Neutral Atoms ◽  
Energetic Ions ◽  
Imaging Instrument ◽  
Singly Charged

Titan's nitrogen-rich atmosphere is directly bombarded by energetic ions, due to its lack of a significant intrinsic magnetic field. Singly charged energetic ions from Saturn's magnetosphere undergo charge-exchange collisions with neutral atoms in Titan's upper atmosphere, or exosphere, being transformed into energetic neutral atoms (ENAs). The ion and neutral camera, one of the three sensors that comprise the magnetosphere imaging instrument (MIMI) on the Cassini/Huygens mission to Saturn and Titan, images these ENAs like photons, and measures their fluxes and energies. These remote-sensing measurements, combined with the in situ measurements performed in the upper thermosphere and in the exosphere by the ion and neutral mass spectrometer instrument, provide a powerful diagnostic of Titan's exosphere and its interaction with the Kronian magnetosphere. These observations are analysed and some of the exospheric features they reveal are modelled.

Distribution of neutral atoms and charge- exchange ions downstream of an ion thruster.

1968 ◽  
Vol 5 (2) ◽  
pp. 159-164 ◽  
Author(s):  
JOHN F. STAGGS ◽  
WILLIAM P. GULA ◽  
WILLIAM R. KERSLAKE
Keyword(s):  
Charge Exchange ◽  
Neutral Atoms ◽  
Ion Thruster

Population inversion due to charge-exchange interaction of plasma jets from plasma focus with residual gas

1998 ◽  
Vol 58 (6) ◽  
pp. 7819-7822 ◽  
Author(s):  
A. Engel ◽  
K. N. Koshelev ◽  
Yu. V. Sidelnikov ◽  
S. S. Churilov ◽  
C. Gavrilescu ◽  
...  
Keyword(s):  
Exchange Interaction ◽  
Charge Exchange ◽  
Plasma Focus ◽  
Population Inversion ◽  
Plasma Jets ◽  
Residual Gas

scholarly journals Cold neutral atoms via charge exchange from excited state positronium: a proposal

2017 ◽  
Vol 19 (5) ◽  
pp. 053020 ◽  
Author(s):  
W A Bertsche ◽  
M Charlton ◽  
S Eriksson
Keyword(s):  
Excited State ◽  
Charge Exchange ◽  
Neutral Atoms

The exchange of charge between ions and atoms

1951 ◽  
Vol 205 (1082) ◽  
pp. 421-438 ◽  
Keyword(s):  
Satisfactory Agreement ◽  
Charge Exchange ◽  
Cross Sections ◽  
Vibrational Energy ◽  
Neutral Atoms ◽  
Low Energies

Charge-exchange cross-sections have been measured for ions of between 25 and 900 eV energy in collision with neutral atoms. The method involves collection and measurement of the chargeexchange ions when a beam is passed through gas. The cases A + in A, He + in He are in satisfactory agreement with the measurements of Rostagni, although showing no maxima at low energies. The cases O+ in N 2 , O + in A, and N + in A show abnormally high values which are believed to be due to the presence of m etastable ions, as well as contributions from the nitrogen rotational and vibrational energy. The cases H + in A, in Kr, in Xe and C + in Xe rise with an increasing energy, to a maximum when a Δ E /hv ≏ 1, Δ E being the energy defect of the hv process, v the velocity of the incident ion, and a a parameter of atomic dimensions ~ (5 to 10) 10 -8 cm.

Potential merits for substorm research from imaging of charge-exchange neutral atoms

1995 ◽  
Vol 13 (5) ◽  
pp. 505-516 ◽  
Author(s):  
I. A. Daglis ◽  
S. Livi
Keyword(s):  
Charge Exchange ◽  
Neutral Atom ◽  
Ion Source ◽  
Neutral Atoms ◽  
Magnetospheric Substorm ◽  
Source Regions ◽  
Vantage Points ◽  
Coherent Picture ◽  
Spatial And Temporal Characteristics

Abstract. The in situ observations of the Earth magnetosphere performed over the past decades of space research have provided a rather good understanding of many partial localized processes of the magnetospheric substorm. The continuing lack of global observations inhibits the construction of a coherent picture of the substorm as a whole, which is actually determined by the coupling of the partial processes. In this context the importance of global observations for the advancement of magnetospheric substorm studies is critical. This paper presents briefly a promising technique of global observations, namely the imaging of charge exchange neutral atoms, or neutral atom imaging (NAI) of the magnetosphere. Model and theoretical estimates of charge-exchange neutral atom fluxes, as well as appropriate spacecraft orbit and instrumentation requirements are presented and discussed for specific regions of interest and vantage points. The potential merits of NAI for substorm research are presented along with possible combinations with other types of observational methods. Substorm issues that would benefit from NAI should include among others the assessment of the ionospheric contribution to the hot magnetospheric plasma, the relative importance of various ionospheric ion source regions, the resolution of spatial and temporal characteristics of substorm ion injections. NAI observations can be precious complements to local observations and lead to the understanding of how local processes, many of which are resolved quite well today, combine to form the global process of the magnetospheric substorm.

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