High-resolution XUV spectroscopy of x-ray laser plasmas

1992 ◽  
Author(s):  
Jeffrey A. Koch ◽  
Phillip J. Batson ◽  
Michael R. Carter ◽  
Karen L. Chapman ◽  
Luiz B. Da Silva ◽  
...  
Keyword(s):  
High Resolution ◽  
X Ray ◽  
Laser Plasmas ◽  
Xuv Spectroscopy

Impurity ion temperature and toroidal rotation velocity in JET from high‐resolution x‐ray and XUV spectroscopy

1988 ◽  
Vol 64 (7) ◽  
pp. 3345-3352 ◽  
Author(s):  
M. Mattioli ◽  
J. Ramette ◽  
B. Saoutic ◽  
B. Denne ◽  
E. Källne ◽  
...  
Keyword(s):  
High Resolution ◽  
Rotation Velocity ◽  
Ion Temperature ◽  
X Ray ◽  
Toroidal Rotation ◽  
Xuv Spectroscopy ◽  
Impurity Ion

scholarly journals Large-field high-resolution x-ray microscope for studying laser plasmas

1997 ◽  
Vol 68 (9) ◽  
pp. 3412-3420 ◽  
Author(s):  
Richard Sauneuf ◽  
Jean-Michel Dalmasso ◽  
Thierry Jalinaud ◽  
Jean-Pierre Le Breton ◽  
Daniel Schirmann ◽  
...  
Keyword(s):  
High Resolution ◽  
Large Field ◽  
X Ray ◽  
Laser Plasmas

High-Resolution X-Ray Crystal Spectrometer and Its Application in Laser Plasmas

2008 ◽  
Vol 28 (6) ◽  
pp. 1220-1224
Author(s):  
王瑞荣 Wang Ruirong ◽  
陈伟民 Chen Weimin ◽  
董佳钦 Dong Jiaqin ◽  
熊俊 Xiong Jun ◽  
傅思祖 Fu Sizu
Keyword(s):  
High Resolution ◽  
Crystal Spectrometer ◽  
X Ray ◽  
Laser Plasmas

High-resolution x-ray spectrometer based on spherically bent crystals for investigations of femtosecond laser plasmas

1998 ◽  
Vol 69 (12) ◽  
pp. 4049-4053 ◽  
Author(s):  
B. K. F. Young ◽  
A. L. Osterheld ◽  
D. F. Price ◽  
R. Shepherd ◽  
R. E. Stewart ◽  
...  
Keyword(s):  
High Resolution ◽  
Femtosecond Laser ◽  
X Ray ◽  
Laser Plasmas ◽  
Bent Crystals

Monochromatic X-ray microscopy in the water window with a compact laser system

1994 ◽  
Vol 52 ◽  
pp. 60-61
Author(s):  
M. Kado ◽  
M. Richardson ◽  
K. Gabel ◽  
F. Jin
Keyword(s):  
High Resolution ◽  
Laser System ◽  
Three Dimensional ◽  
X Rays ◽  
X Ray ◽  
Water Window ◽  
Laser Plasmas ◽  
A New Technique ◽  
Bright Source

It is a dream of biologist to observe the intact structure of a biological specimen at high resolution without any artifacts. The development of high resolution x-ray microscopy is a new technique well suited to this purpose. The advantages of x-ray microscopy are seen to be: (i) the contrast can be provided by its components, thereby avoiding possible artifacts caused by the staining and fixation of specimens; (ii) x-ray microscopy is capable of observing thicker specimens (up to a few (μm)than electron microscopy with less damage; (iii) the actual location of the element can be visualizedwhen the proper x-ray wavelength is chosen. (iv) three-dimensional observation may be possible with asingle exposure of x rays. X-ray contact microscopy is presendy the most suitable method by which to evaluate these advantages.It is generally accepted that the highest contrast in x-ray images of in-vitro biological specimens will be obtained with radiation have a wavelength in the so-called “water window”, (2.3-4.4 nm). Both laser plasmas and synchrotrons are bright source of radiation in this region.

Diagnostics of Gold Laser Plasmas

1988 ◽  
Vol 102 ◽  
pp. 357-360
Author(s):  
J.C. Gauthier ◽  
J.P. Geindre ◽  
P. Monier ◽  
C. Chenais-Popovics ◽  
N. Tragin ◽  
...  
Keyword(s):  
Experimental Results ◽  
Pure Gold ◽  
Electronic Temperature ◽  
X Ray ◽  
Laser Plasmas ◽  
Collisional Radiative Model ◽  
Radiative Model

AbstractIn order to achieve a nickel-like X ray laser scheme we need a tool to determine the parameters which characterise the high-Z plasma. The aim of this work is to study gold laser plasmas and to compare experimental results to a collisional-radiative model which describes nickel-like ions. The electronic temperature and density are measured by the emission of an aluminium tracer. They are compared to the predictions of the nickel-like model for pure gold. The results show that the density and temperature can be estimated in a pure gold plasma.

Electron microscopy of rabbit FC crystals

1983 ◽  
Vol 41 ◽  
pp. 730-731
Author(s):  
Robert A. Grant ◽  
Laura L. Degn ◽  
Wah Chiu ◽  
John Robinson
Keyword(s):  
Electron Microscopy ◽  
High Resolution ◽  
High Resolution Electron Microscopy ◽  
Molecular Replacement ◽  
X Ray ◽  
X Ray Crystallography ◽  
Resolution Electron ◽  
Replacement Technique ◽  
Hydrated Crystal ◽  
Molecular Structure Analysis

Proteolytic digestion of the immunoglobulin IgG with papain cleaves the molecule into an antigen binding fragment, Fab, and a compliment binding fragment, Fc. Structures of intact immunoglobulin, Fab and Fc from various sources have been solved by X-ray crystallography. Rabbit Fc can be crystallized as thin platelets suitable for high resolution electron microscopy. The structure of rabbit Fc can be expected to be similar to the known structure of human Fc, making it an ideal specimen for comparing the X-ray and electron crystallographic techniques and for the application of the molecular replacement technique to electron crystallography. Thin protein crystals embedded in ice diffract to high resolution. A low resolution image of a frozen, hydrated crystal can be expected to have a better contrast than a glucose embedded crystal due to the larger density difference between protein and ice compared to protein and glucose. For these reasons we are using an ice embedding technique to prepare the rabbit Fc crystals for molecular structure analysis by electron microscopy.

High Resolution Study of Polytypism: Application to SiC and Au3 Mn

1982 ◽  
Vol 40 ◽  
pp. 540-541
Author(s):  
G. Van Tendeloo ◽  
J. Van Landuyt ◽  
S. Amelinckx
Keyword(s):  
Electron Microscopy ◽  
High Resolution ◽  
Stacking Sequence ◽  
X Ray ◽  
Powerful Technique ◽  
Resolution Study ◽  
The Ideal

Polytypism has been studied for a number of years and a wide variety of stacking sequences has been detected and analysed. SiC is the prototype material in this respect; see e.g. Electron microscopy under high resolution conditions when combined with x-ray measurements is a very powerful technique to elucidate the correct stacking sequence or to study polytype transformations and deviations from the ideal stacking sequence.

A High Resolution Study of G.P. Zones in Aluminum - 4.2 at % Silver

1982 ◽  
Vol 40 ◽  
pp. 722-723 ◽  
Author(s):  
R. Gronsky
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
Computer Simulations ◽  
Structural Characteristics ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Resolution Study

The phenomenon of clustering in Al-Ag alloys has been extensively studied since the early work of Guinierl, wherein the pre-precipitation state was characterized as an assembly of spherical, ordered, silver-rich G.P. zones. Subsequent x-ray and TEM investigations yielded results in general agreement with this model. However, serious discrepancies were later revealed by the detailed x-ray diffraction - based computer simulations of Gragg and Cohen, i.e., the silver-rich clusters were instead octahedral in shape and fully disordered, atleast below 170°C. The object of the present investigation is to examine directly the structural characteristics of G.P. zones in Al-Ag by high resolution transmission electron microscopy.

Scanning Electron Microscopy and x-ray analysis of microparticles and early hydration effects

1995 ◽  
Vol 53 ◽  
pp. 692-693
Author(s):  
Yun Lu ◽  
David C. Joy
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
High Resolution ◽  
Morphological Development ◽  
Early Hydration ◽  
X Ray ◽  
Blended Cements ◽  
Powder Particles ◽  
Chemical Wastes ◽  
Scanning Electron

High resolution scanning electron microscopy (SEM) and energy dispersive x-ray analysis (EDXA) were performed to investigate microparticles in blended cements and their hydration products containing sodium-rich chemical wastes. The physical appearance of powder particles and the morphological development at different hydration stages were characterized by using high resolution SEM Hitachi S-900 and by SEM S-800 with a EDX spectrometer. Microparticles were dispersed on the sample holder and glued by 1% palomino solution. Hydrated bulk samples were dehydrated by acetone and mounted on the holder by silver paste. Both fracture surfaces and flat cutting sections of hydrating samples were prepared and examined. Some specimens were coated with an 3 nm thick Au-Pd or Cr layer to provide good conducting surfaces. For high resolution SEM S-900 observations the accelerating voltage of electrons was 1-2 KeV to protect the electron charging. Microchemical analyses were carried out by S800/EDS equipped with a LINK detector of take-off angle =40°.

Sign in / Sign up

Export Citation Format

Share Document