New progress in high-performance x-ray image intensifiers

Yves R. Beauvais; Paul M. de Groot; Jean-Charles Chen

doi:10.1117/12.142017

1 April 1993 New progress in high-performance x-ray image intensifiers

Yves R. Beauvais, Paul M. de Groot, Jean-Charles Chen

Proceedings Volume 1982, Photoelectronic Detection and Imaging: Technology and Applications '93; (1993) https://doi.org/10.1117/12.142017
Event: Photoelectronic Detection and Imaging: Technology and Applications '93, 1993, Beijing, China

Abstract

The primary feature of x-ray image intensification is to allow a substantial reduction of the necessary x-ray dose, by offering a luminance gain of about 10⁴ compared to direct view fluoroscopic screens. Such a luminance gain has made possible real time video recording and display of radiological images, by optically coupling a video camera to the output of the screen of the XRII tube. However, the observable field of view of the XRII was initially limited to approximately 15 cm, and the image resolution was not as good as the resolution achievable with radiological films. Progressively, the size of XRII tubes has been increased, and modern tubes can offer useful image diameters up to 40 cm. In addition to that, the electronic zoom, introduced at the beginning of the seventies as a feature of the XRII tubes, allowed the user to achieve an observable resolution very close to that of the radiological films, but at the expense of the observable field of view. Continuously, the manufacturing technology of the most critical parts of the XRII tubes have been improved resulting, for modern tubes, in such an imaging quality that most of the radiological modalities of diagnostic are directly achievable through video observation. Furthermore, the recent progress made in electronics and image processing offers powerful means to make the best possible use of the electronically recorded radiological images. A review is made, hereafter, of the latest progresses in XRII performances and applications.

Citation Download Citation

Yves R. Beauvais, Paul M. de Groot, and Jean-Charles Chen "New progress in high-performance x-ray image intensifiers", Proc. SPIE 1982, Photoelectronic Detection and Imaging: Technology and Applications '93, (1 April 1993); https://doi.org/10.1117/12.142017

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
11 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

X-rays

X-ray imaging

Image resolution

Absorption

Modulation transfer functions

Video

Image intensifiers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years