Double crystal spectrometer with relatively high vertical divergence and instrumental distortion of X-ray spectra

1968 ◽  
Vol 18 (9) ◽  
pp. 1190-1203 ◽  
Author(s):  
J. Drahokoupil ◽  
A. Fingerland
Keyword(s):  
Crystal Spectrometer ◽  
Double Crystal ◽  
X Ray ◽  
Vertical Divergence ◽  
Instrumental Distortion

The resolution of X-ray double-crystal spectrometer in the three beam case

1976 ◽  
Vol 26 (2) ◽  
pp. 117-123
Author(s):  
O. Renner ◽  
J. Bačkovský ◽  
J. Hrdý
Keyword(s):  
Crystal Spectrometer ◽  
Double Crystal ◽  
X Ray

scholarly journals New methods of X-ray spectroscopy of laser-produced plasmas with one-dimensional spatial resolution

1994 ◽  
Vol 12 (3) ◽  
pp. 539-548 ◽  
Author(s):  
O. Renner ◽  
M. Kopecký ◽  
E. Krouský ◽  
E. Förster ◽  
T. Missalla ◽  
...  
Keyword(s):  
Spatial Resolution ◽  
High Dispersion ◽  
Crystal Spectrometer ◽  
Double Crystal ◽  
One Dimensional ◽  
X Ray ◽  
Bent Crystal ◽  
New Methods ◽  
Vertical Dispersion ◽  
Preliminary Experimental Data

Two novel high-dispersion, high-resolution spectroscopic methods are described. The properties of the vertical dispersion variants of the double-crystal spectrometer and the Johann spectrometer with a cylindrically bent crystal are discussed and compared with those of standard spectroscopic schemes. Preliminary experimental data demonstrate the good luminosity and extreme spectral and 1-D spatial resolution of these methods, which should prove useful in high-precision X-ray spectroscopic measurements of laser-produced plasmas.

A Versatile Vacuum Scahhihg Double Crystal Spectrometer for Soft X-Ray Absorption Edge Studies

1969 ◽  
Vol 13 ◽  
pp. 272-288
Author(s):  
A.S. Bhalla ◽  
E.W. White
Keyword(s):  
Absorption Edge ◽  
Vacuum Chamber ◽  
Wavelength Region ◽  
Materials Characterization ◽  
Resolving Power ◽  
Crystal Spectrometer ◽  
Double Crystal ◽  
X Ray ◽  
X Ray Absorption

Studies of the fine structure of absorption edges in the soft x-ray region are becoming increasingly important as a tool for materials characterization. Examples of application includes determination of chemical state of elements, bonding and band structure studies. Intensity and resolving power of the x-ray spectrometer are important experimental considerations. As a rule adjustment of instrumental parameters, such as collimation, to give increased intensity adversely affect resolving power. Optimization of intensity and resolving power must therefore he achieved.A newly designed double crystal spectrometer has been constructed for high-resolution absorption edge studies in the wavelength region of 5Ǻ to 70Ǻ.The entire system is enclosed in a vacuum chamber ion pumped to the 10-7 torr range. The second crystal motion is obtained by means of an ULTRADEX 360-sided polygon and sine arm that is automatically step-scanned. The spectrometer functions equally well in the (l, + l) and (l, - l) orientation and as a precise single crystal spectrometer.

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