Photo-Ionization in the Soft x-Ray Range: 1ZDependence in a Central-Potential Model

1968 ◽  
Vol 165 (1) ◽  
pp. 126-138 ◽  
Author(s):  
STEVEN TRENT MANSON ◽  
JOHN W. COOPER
Keyword(s):  
Potential Model ◽  
Central Potential ◽  
X Ray ◽  
Photo Ionization

Study of innershell photo-ionization-pumped L23M1 transition in Ca for the development of femtosecond X-ray laser

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-225-Pr2-231
Author(s):  
D. Kim ◽  
S. H. Son ◽  
J. H. Kim ◽  
Cs. Toth ◽  
C. P.J. Barty
Keyword(s):  
X Ray ◽  
Photo Ionization

Systematics of inner-shell photo-ionization X-ray lasers with constant pump rates

1995 ◽  
Vol 60 (6) ◽  
pp. 513-518 ◽  
Author(s):  
G. L. Strobel ◽  
R. A. London ◽  
D. C. Eder
Keyword(s):  
X Ray ◽  
Photo Ionization

Short wavelength X-ray laser scheme based on inner-shell photo-ionization of magnesium

1994 ◽  
Author(s):  
G. L. Strobel ◽  
D. C. Eder ◽  
P. Amendt ◽  
R. A. London ◽  
M. D. Rosen
Keyword(s):  
Short Wavelength ◽  
X Ray ◽  
Photo Ionization

scholarly journals A VO-based solution to the origin of soft X-ray emission in obscured AGN

2006 ◽  
Vol 2 (14) ◽  
pp. 582-582
Author(s):  
Matteo Guainazzi ◽  
I. Barbarisi ◽  
Stefano Bianchi ◽  
Miguel Cerviño ◽  
Pedro Osuna ◽  
...  
Keyword(s):  
High Resolution ◽  
Galactic Nuclei ◽  
High Resolution Spectroscopy ◽  
Striking Similarity ◽  
X Ray ◽  
Line Region ◽  
Resolution Imaging ◽  
Narrow Line Region ◽  
Photo Ionization ◽  
Intense Star Formation

Recent high-resolution imaging observations with Chandra have unveiled a striking similarity between the Narrow Line Region (NLR) and the diffuse soft (0.1-keV) emission-line dominated X-ray morphologies in a number of obscured Active Galactic Nuclei (AGN) on scales as large as 0.1-2kpc (Bianchi et al., 2006, A&, 448, 499). This discovery suggests a strong link between these components, which points toward a common physical origin. AGN photo-ionization is a natural explanation, consistent with soft X-ray high-resolution spectroscopy (Guainazzi & Bianchi, 2006, submitted). However, the possibility that the bulk of this component is generated by ‘local’ photo-ionization induced by shocks in the interaction between a radio jet and the interstellar matter, or by mechanical heating in regions of intense star formation cannot be ruled out yet.

Spherically symmetric high-velocity plasma expansions into background gases

1986 ◽  
Vol 35 (2) ◽  
pp. 239-256 ◽  
Author(s):  
Tai-Ho Tan ◽  
Joseph E. Borovsky
Keyword(s):  
High Velocity ◽  
Spherical Geometry ◽  
Ion Acceleration ◽  
Spherically Symmetric ◽  
Laser Target ◽  
X Ray ◽  
Isothermal Expansion ◽  
Ambient Gases ◽  
Photo Ionization

Spherically symmetric plasmas with high expansion velocities have been produced by irradiating targets with eight beams from the Helios CO2 laser in the presence of gases at various pressures. Attention was given to the properties of the target-emitted ions in order to obtain information about the ion acceleration mechanisms in plasma expansions. Photo-ionization of the ambient gases by the soft X-ray emission from the laser-irradiated targets produced background plasmas, permitting plasma counterstreaming experiments to be performed in spherical geometry. Successful laser-target coupling in the presence of background gases is obtained, modification of the ion acceleration in accordance with isothermal-expansion models is observed, and an absence of collective coupling between collisionless counterstreaming plasmas is found.

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