Enhanced real-time magnification angiography utilizing a 100-μm-focus x-ray generator in conjunction with an image intensifier

2006 ◽  
Author(s):  
Eiichi Sato ◽  
Etsuro Tanaka ◽  
Hidezo Mori ◽  
Toshiaki Kawai ◽  
Takashi Inoue ◽  
...  
Keyword(s):  
Real Time ◽  
Image Intensifier ◽  
X Ray ◽  
Time Magnification

Real Time Synchrotron Topography Using a CID Array Camera with Digital Image Acquisition and Processing

1994 ◽  
Vol 38 ◽  
pp. 215-219
Author(s):  
John M. Winter ◽  
Robert E. Green
Keyword(s):  
Real Time ◽  
Image Intensifier ◽  
Time System ◽  
Real Time System ◽  
X Ray ◽  
System A ◽  
Processing Software ◽  
Beam Transmission ◽  
Array Camera ◽  
Computer Board

Synchrotron white beam transmission topography of GaAs as previously reported by the authors relied on scanning specimen and film synchronously through the incident x-ray beam to record transmission topographic images en film. Sometimes the total dose required for reasonable contrast on film carried with it enough thermal deposition to cause elastic warping of the wafer. To escape these problems, a real time system was assembled. This system included an image intensifier, a solid state camera, a computer board to frame-grab and digitize images, and appropriate image processing software. With this system, a three inch specimen was scanned from edge to edge in one minute. At this scan rate, the incident x-ray beam had to be significantly attenuated to avoid saturating the intensifier output.

Development and assessment of an image intensifier for real-time X-ray microscopy

1986 ◽  
Vol 59 (699) ◽  
pp. 273-276 ◽  
Author(s):  
Robert LI. Davies ◽  
Nicholas A. Flores ◽  
Kenneth T. Evans
Keyword(s):  
Real Time ◽  
Image Intensifier ◽  
X Ray

Image receptors

2018 ◽  
Author(s):  
Jim Hughes
Keyword(s):  
Radiation Dose ◽  
Real Time ◽  
Image Intensifier ◽  
Flat Panel ◽  
Visible Image ◽  
Image Storage ◽  
X Ray ◽  
Storage And Retrieval ◽  
Reduce Radiation Dose ◽  
Image Storage And Retrieval

The receptor head is the system that converts the X-ray beam into a visible image and allows it to be displayed. Modern systems accomplish this by using either an image intensifier (II) or a flat-panel detector (FPD). Both allow real-time fluoroscopy, as well as last-image hold, image storage and retrieval, and other features to assist in procedures or reduce radiation dose. This chapter covers the design and functions of image receptor heads used on C-arm systems that produce images from the incident X-ray beam. This includes the process of intensification and amplification of the image within an II system, as well as the function and the use of newer FPD systems.

Real-time Magnification Radiography Utilizing a 100-µm-focus X-ray Generator

2007 ◽  
pp. 1525-1528
Author(s):  
Eiichi Sato ◽  
Etsuro Tanaka ◽  
Hidezo Mori ◽  
Toshiaki Kawai ◽  
Takashi Inoue ◽  
...  
Keyword(s):  
Real Time ◽  
X Ray ◽  
Time Magnification ◽  
Magnification Radiography

Real-Time Accurate Identification of Tumor Site Using a Mobile X-Ray Image-Intensifier System During Laparoscopic Gastrectomy

2016 ◽  
Vol 222 (2) ◽  
pp. e1-e7 ◽  
Author(s):  
Yu Imamura ◽  
Eiji Oki ◽  
Kippei Ohgaki ◽  
Yuichiro Nakashima ◽  
Koji Ando ◽  
...  
Keyword(s):  
Real Time ◽  
Laparoscopic Gastrectomy ◽  
Image Intensifier ◽  
Tumor Site ◽  
Accurate Identification ◽  
X Ray

Low Energy X-Ray Transmission Images by using a Microfocus X-Ray Tube and a be-Window X-Ray Image Intensifier(XRII)

1998 ◽  
Vol 4 (S2) ◽  
pp. 494-495
Author(s):  
H. Konuma ◽  
K. Kuroki ◽  
K. Kurosawa ◽  
N. Saitoh
Keyword(s):  
Real Time ◽  
Light Element ◽  
Image Intensifier ◽  
High Energy ◽  
Low Energy ◽  
Absorption Coefficients ◽  
Tube Voltage ◽  
Time Resolved ◽  
X Ray ◽  
Time Resolved Measurements

Photographs of x-ray transmission images by x-ray films have been used for observing the inside nondestructively. Further, Imaging Plates(IP) are used for precise measurements of x-ray diffraction patterns. But, these integrating area detectors are not suitable for real time nor time resolved measurements. For real time and time resolved measurements, the X-Ray Image Intensifier(XRII, a large image tube that converts an x-ray image into a visible image) is used for biological x-ray TV systems, x-ray nondestructive inspection systems etc. These TV x-ray image systems require high energy x-rays, x-ray tube voltage of 30 to 150 kV, and show faint contrast for x-ray images of light element substances owing to its low absorption coefficients. However, light elements have intense x-ray absorption coefficients in a low energy x-ray region, x-ray tube voltage of 5 to 20 kV, and give fine contrast for x-ray images of light element substances.

Flat x-ray image intensifier system for real-time fluoroscopy

2000 ◽  
Author(s):  
Hiroshi Onihashi ◽  
Hiroshi Aida ◽  
Kiyumi No ◽  
Takashi Noji ◽  
Yuichi Murakoshi ◽  
...  
Keyword(s):  
Real Time ◽  
Image Intensifier ◽  
X Ray

Real-Time X-Ray Diffraction For Materials Process Control

MRS Bulletin ◽  
1988 ◽  
Vol 13 (4) ◽  
pp. 44-48 ◽  
Author(s):  
R.E. Green
Keyword(s):  
Process Control ◽  
Real Time ◽  
High Intensity ◽  
First Generation ◽  
Imaging System ◽  
Image Intensifier ◽  
X Ray Diffraction ◽  
X Ray ◽  
Low Intensity ◽  
Optical Imaging System

As useful as classical x-ray diffraction techniques have been, the ability to obtain x-ray diffraction images with extremely short exposure rimes opens up new opportunities for materials scientists, including real-time materials process control. This article briefly describes state-of-the-art systems for obtaining extremely rapid and real-time x-ray diffraction images and gives several examples of their applications for materials process control.Two generic electro-optical methods permit real-time viewing and recording of x-ray diffraction images. The first uses a low-intensity conventional x-ray tube source leading to a low-intensity diffraction image, which requires a high-gain electro-optical imaging system. The second uses either a high-intensity rotating anode, synchrotron, or flash x-ray source. Such a high-intensity source produces a high-intensity diffraction image, permitting use of a low-gain high-resolution electro-optical imaging system.Figure 1 schematically shows two types of image intensifier tubes which have been most often used to view x-ray diffraction images. By cascading three individual first generation image tube stages (Figure 1a), light gains as high as several million can be obtained. The second generation microchannel-plate image intensifier tube (Figure 1b) is similar to a single-stage first generation device except for the extremely important addition of a microchannel plate.

scholarly journals Real time implementation of distortion corrections for a tiled EMCCD-based solid state x-ray image intensifier (SSXII)

2009 ◽  
Author(s):  
Christos Keleshis ◽  
K. R. Hoffmann ◽  
J. Lee ◽  
H. Hamwi ◽  
W. Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Real Time ◽  
Image Intensifier ◽  
X Ray

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.

Sign in / Sign up

Export Citation Format

Share Document