scholarly journals INTENSITY DISTRIBUTION OF SYNCHROTRON RADIATION FROM A INHOMOGENEOUS CYLINDRICAL JET: THE LIMB BRIGHTENING EFFECT

2020 ◽  
Author(s):  
V. A. Frolova ◽  
◽  
E. E. Nokhrina ◽  
Keyword(s):  
Synchrotron Radiation ◽  
Intensity Distribution

Structure images of Si, Ge and Mos2 crystals and some application to radiation damage studies

1978 ◽  
Vol 36 (1) ◽  
pp. 292-293 ◽  
Author(s):  
K. Izui ◽  
T. Nishida ◽  
S. Furuno ◽  
H. Otsu ◽  
S. Kuwabara
Keyword(s):  
Radiation Damage ◽  
Exposure Time ◽  
Gaussian Distribution ◽  
Intensity Distribution ◽  
Chromatic Aberration ◽  
Magnetic Lens

Recently we have observed the structure images of silicon in the (110), (111) and (100) projection respectively, and then examined the optimum defocus and thickness ranges for the formation of such images on the basis of calculations of image contrasts using the n-slice theory. The present paper reports the effects of a chromatic aberration and a slight misorientation on the images, and also presents some applications of structure images of Si, Ge and MoS2 to the radiation damage studies.(1) Effect of a chromatic aberration and slight misorientation: There is an inevitable fluctuation in the amount of defocus due to a chromatic aberration originating from the fluctuations both in the energies of electrons and in the magnetic lens current. The actual image is a results of superposition of those fluctuated images during the exposure time. Assuming the Gaussian distribution for defocus, Δf around the optimum defocus value Δf0, the intensity distribution, I(x,y) in the image formed by this fluctuation is given by

Direct Observation of Monolayer Zones in Al-wt 4% Cu

1990 ◽  
Vol 48 (1) ◽  
pp. 14-15
Author(s):  
B. Jouffrey ◽  
D. Dorignac ◽  
A. Bourret
Keyword(s):  
Solid Solution ◽  
Synchrotron Radiation ◽  
Direct Observation ◽  
Supersaturated Solid Solution ◽  
Original Model ◽  
X Ray ◽  
Image Position

Since the early works on GP zones and the model independently proposed by Preston and Guinier on the first steps of precipitation in supersaturated solid solution of aluminium containing a few percent of copper, many works have been performed to understand the structure of different stages in the sequence of precipitation.The scheme which is generally admitted can be drawn from a work by Phillips.In their original model Guinier and Preston analysed a GP zone as composed of a single (100) copperrich plane surrounded by aluminum atomic planes with a slightly shorter distance from the original plane than in the solid solution.From X-ray measurements it has also been shown that GP1 zones were not only copper monolayer zones. They could be up to a few atomic planes thick. Different models were proposed by Guinier, Gerold, Toman. Using synchrotron radiation, proposals have been recently made.

Synchrotron radiation X-rays demonstrate small cerebral vessels in normal mouse and variations under ischemia in rat

2005 ◽  
Vol 25 (1_suppl) ◽  
pp. S558-S558
Author(s):  
Masahiro Tamaki ◽  
Takashi Mizobe ◽  
Keiji Kidoguchi ◽  
Junnji Koyama ◽  
Takeshi Kondoh ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Normal Mouse ◽  
Cerebral Vessels ◽  
X Rays

SYNCHROTRON RADIATION AS A SOURCE FOR STRUCTURAL ANALYSIS IN BIOLOGY

1973 ◽  
Vol 34 (C8) ◽  
pp. C8-63-C8-63
Author(s):  
J. BARRINGTON LEIGH ◽  
G. ROSENBAUM
Keyword(s):  
Structural Analysis ◽  
Synchrotron Radiation

THE STUDY OF DISLOCATION GLIDE IN ICE BY SYNCHROTRON RADIATION X-RAY TOPOGRAPHY

1987 ◽  
Vol 48 (C1) ◽  
pp. C1-175-C1-181
Author(s):  
S. AHMAD ◽  
M. OHTOMO ◽  
R. W. WHITWORTH
Keyword(s):  
Synchrotron Radiation ◽  
X Ray ◽  
Dislocation Glide

FERRO-HELIMAGNETIC PHASE COEXISTENCE OBSERVED BY SYNCHROTRON RADIATION AND NEUTRON TOPOGRAPHY IN MnP

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-1891-C8-1892
Author(s):  
J. Baruchel ◽  
M. Schlenker ◽  
J. Sandonis
Keyword(s):  
Synchrotron Radiation ◽  
Phase Coexistence

PARAMAGNETIC GARNET FILM MONOCHROMATOR FOR SYNCHROTRON RADIATION

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-2031-C8-2032
Author(s):  
G. Balestrino ◽  
E. Gerdau ◽  
M. Grove ◽  
R. Hollatz ◽  
E. Milani ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Garnet Film
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