A scanning system for chest radiography with regional exposure control: Practical implementation

1983 ◽  
Vol 10 (5) ◽  
pp. 655-663 ◽  
Author(s):  
D. B. Plewes ◽  
E. Vogelstein
Keyword(s):  
Chest Radiography ◽  
Practical Implementation ◽  
Scanning System ◽  
Exposure Control

Optoelectronic circular scanning system 1 Structural setup and version of practical implementation

2014 ◽  
Vol 81 (9) ◽  
pp. 493 ◽  
Author(s):  
M. F. Borisov ◽  
O. A. Lebedev ◽  
N. I. Pavlov ◽  
A. Ya. Prilipko
Keyword(s):  
Practical Implementation ◽  
Scanning System ◽  
System 1

Automatic Exposure Control in Chest Radiography

2019 ◽  
Vol 19 (1) ◽  
pp. 713
Author(s):  
Sung-Sik Choi ◽  
Cheong-Hwan Lim ◽  
Sung-Hun Jeoung
Keyword(s):  
Chest Radiography ◽  
Exposure Control ◽  
Automatic Exposure Control

A Study on the Using of Automatic Exposure Control in the Chest Radiography

2019 ◽  
Vol 42 (1) ◽  
pp. 19-24 ◽  
Author(s):  
Sung-Sik Choi ◽  
◽  
Cheong-Hwan Lim ◽  
Sung-Hoon Jung
Keyword(s):  
Chest Radiography ◽  
Exposure Control ◽  
Automatic Exposure Control

Clinical evaluation of manual and automatic exposure control techniques in film-based chest radiography

1996 ◽  
Vol 69 (823) ◽  
pp. 650-654 ◽  
Author(s):  
E Ismailos ◽  
I Mastorakou ◽  
N L Kelekis ◽  
K P Papadopoulos ◽  
E P Efstathopoulos ◽  
...  
Keyword(s):  
Clinical Evaluation ◽  
Chest Radiography ◽  
Exposure Control ◽  
Automatic Exposure Control ◽  
Control Techniques

scholarly journals Influence of X-ray Detector of Automatic Exposure Control Unit(AEC)on Digital Chest Radiography

2001 ◽  
Vol 57 (9) ◽  
pp. 1121-1127
Author(s):  
HIDEMICHI KAWATA ◽  
SEIJI OOKUBO ◽  
KEIICHIROU HYOUDOU ◽  
RYUUJI IKEMATSU ◽  
HITOSHI TANIGAWA ◽  
...  
Keyword(s):  
Chest Radiography ◽  
Control Unit ◽  
Exposure Control ◽  
Automatic Exposure Control ◽  
X Ray ◽  
Digital Chest

An Overview of Digital Image Processing and Recognition (Invited Paper)

1982 ◽  
Vol 40 ◽  
pp. 700-702
Author(s):  
R. C. Gonzalez
Keyword(s):  
Image Processing ◽  
New York ◽  
Digital Image Processing ◽  
Digital Image ◽  
Practical Implementation ◽  
Submarine Cable ◽  
Vigorous Growth ◽  
Digitized Pictures ◽  
Processing Techniques ◽  
And Storage

Interest in digital image processing techniques dates back to the early 1920's, when digitized pictures of world news events were first transmitted by submarine cable between New York and London. Applications of digital image processing concepts, however, did not become widespread until the middle 1960's, when third-generation digital computers began to offer the speed and storage capabilities required for practical implementation of image processing algorithms. Since then, this area has experienced vigorous growth, having been a subject of interdisciplinary research in fields ranging from engineering and computer science to biology, chemistry, and medicine.

P20 phosphor on polyimide as a large area high-resolution transmission screen for slow scan CCD systems

1995 ◽  
Vol 53 ◽  
pp. 20-21
Author(s):  
C. C. Ahn ◽  
S. Karnes ◽  
M. Lvovsky ◽  
C. M. Garland ◽  
H. A. Atwater ◽  
...  
Keyword(s):  
Mechanical Stability ◽  
High Energy ◽  
Practical Implementation ◽  
Line Pair ◽  
Modulation Transfer ◽  
Large Area ◽  
Ccd Imaging ◽  
Transmission Electron ◽  
The One ◽  
Beam Broadening

The bane of CCD imaging systems for transmission electron microscopy at intermediate and high voltages has been their relatively poor modulation transfer function (MTF), or line pair resolution. The problem originates primarily with the phosphor screen. On the one hand, screens should be thick so that as many incident electrons as possible are converted to photons, yielding a high detective quantum efficiency(DQE). The MTF diminishes as a function of scintillator thickness however, and to some extent as a function of fluorescence within the scintillator substrates. Fan has noted that the use of a thin layer of phosphor beneath a self supporting 2μ, thick Al substrate might provide the most appropriate compromise for high DQE and MTF in transmission electron microcscopes which operate at higher voltages. Monte Carlo simulations of high energy electron trajectories reveal that only little beam broadening occurs within this thickness of Al film. Consequently, the MTF is limited predominantly by broadening within the thin phosphor underlayer. There are difficulties however, in the practical implementation of this design, associated mostly with the mechanical stability of the Al support film.

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