Lead foil in dental X-ray film: Backscattering rejection or image intensifier?

2014 ◽  
Vol 763 ◽  
pp. 104-111 ◽  
Author(s):  
M.G. Hönnicke ◽  
G.J. Delben ◽  
W.C. Godoi ◽  
V. Swinka-Filho
Keyword(s):  
Image Intensifier ◽  
X Ray ◽  
Lead Foil

An Electron Diffraction Study on Litnerized Potato Starch

1990 ◽  
Vol 48 (1) ◽  
pp. 580-581
Author(s):  
Jean-Claude Jésior ◽  
Roger Vuong ◽  
Henri Chanzy
Keyword(s):  
Electron Microscope ◽  
Electron Diffraction ◽  
Signal To Noise Ratio ◽  
Potato Starch ◽  
Image Intensifier ◽  
Electron Diffraction Study ◽  
Starch Granules ◽  
X Ray ◽  
Individual Grains ◽  
Diamond Knife

Starch is arranged in a crystalline manner within its storage granules and should thus give sharp X-ray diagrams. Unfortunately most of the common starch granules have sizes between 1 and 100μm, making them too small for an X-ray study on individual grains. There is only one instance where an oriented X-ray diagram could be obtained on one sector of an individual giant starch granule. Despite their small size, starch granules are still too thick to be studied by electron diffraction with a transmission electron microscope. The only reported study on starch ultrastructure using electron diffraction on frozen hydrated material was made on small fragments. The present study has been realized on thin sectioned granules previously litnerized to improve the signal to noise ratio.Potato starch was hydrolyzed for 10 days in 2.2N HCl at 35°C, dialyzed against water until neutrality and embedded in Nanoplast. Sectioning was achieved with a commercially available low-angle “35°” diamond knife (Diatome) after a very carefull trimming and a pre-sectioning with a classical “45°” diamond knife. Sections obtained at a final sectioning angle of 42.2° (compared with the usual 55-60°) and at a nominal thickness of 900Å were collected on a Formvar-carbon coated grid. The exact location of the starch granules in their sections was recorded by optical microscopy on a Zeiss Universal polarizing microscope (Fig. 1a). After rehydration at a relative humidity of 95% for 24 hours they were mounted on a Philips cryoholder and quench frozen in liquid nitrogen before being inserted under frozen conditions in a Philips EM 400T electron microscope equipped with a Gatan anticontaminator and a Lhesa image intensifier.

Variable gain X-ray image intensifier tube

1979 ◽  
Vol 26 (11) ◽  
pp. 1711-1717
Author(s):  
A.I. Carlson ◽  
B.M. Singer
Keyword(s):  
Image Intensifier ◽  
X Ray ◽  
Variable Gain

MTF of a 210–70-mm fiber-optic output x-ray image intensifier tube

1975 ◽  
Vol 14 (7) ◽  
pp. 1484 ◽  
Author(s):  
Clayton W. Bates ◽  
Stephen D. Sparks
Keyword(s):  
Fiber Optic ◽  
Image Intensifier ◽  
X Ray

X-Ray Image Intensifier Tubes Using Rare Earth Oxysulfide Phosphors

1970 ◽  
Vol 17 (1) ◽  
pp. 49-56 ◽  
Author(s):  
S. P. Wang ◽  
O. Laudi ◽  
H. Lucks ◽  
K. A. Wickersheim ◽  
R. A. Buchanan
Keyword(s):  
Rare Earth ◽  
Image Intensifier ◽  
X Ray ◽  
Rare Earth Oxysulfide

Quantitative Aspects of Image Intensifier- Television-Based Digital X-Ray Imaging

1986 ◽  
pp. 83-132 ◽  
Author(s):  
O. Nalcioglu ◽  
W. W. Roeck ◽  
J. A. Seibert ◽  
A. V. Lando ◽  
J. M. Tobis ◽  
...  
Keyword(s):  
Image Intensifier ◽  
X Ray ◽  
X Ray Imaging

scholarly journals Development of High MTF 14-inch X-ray image intensifier

1997 ◽  
Vol 53 (1) ◽  
pp. 222
Author(s):  
Keiichi Saito ◽  
Takashi Noji ◽  
Shinji Tomonaga
Keyword(s):  
Image Intensifier ◽  
X Ray

scholarly journals METAL FIBER X-RAY IMAGE INTENSIFIER AND THE CLINICAL USEFULNESS

1985 ◽  
Vol 41 (6) ◽  
pp. 965-970
Author(s):  
AKIO MIWA ◽  
TSUNEO YAMASHITA ◽  
TOMOHIRO HAMADA ◽  
NORIO HARAO ◽  
TETSU SANO ◽  
...  
Keyword(s):  
Image Intensifier ◽  
Clinical Usefulness ◽  
Metal Fiber ◽  
X Ray
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