X-Ray Tube Performance Characteristics And Their Effect On Radiologic Image Quality

Martin Braun; Werner Roeck; Gary Gillan

doi:10.1117/12.938200

15 November 1978 X-Ray Tube Performance Characteristics And Their Effect On Radiologic Image Quality

Martin Braun, Werner Roeck, Gary Gillan

Proceedings Volume 0152, Recent and Future Developments in Medical Imaging I; (1978) https://doi.org/10.1117/12.938200
Event: 22nd Annual Technical Symposium, 1978, San Diego, United States

Abstract

The paper is a two part discussion of: (1) indices which characterize focal spot (F.S.) performance, and (2) the usefulness of these indices for a future F.S. standard. - (1) The two primary parameters of an x-ray source are source geometry (intensity distribution) and maximum source strength (loadability). Source geometry is often summarized by a number called "size", and loadability by a kw-number. We define as an overall F.S. Performance Factor p the ratio of two "size" indices: (a) a "loadability size" we and (b) a "Resolv-ing (imaging performance) size" B (e.g. "RMS equivalent focal spot"). Both describe the given F.S. in terms of a uniform square F.S.; for (a) having same loadability, for (b) having same systems related imaging performance, as the given F.S. - (2) The present F.S. standard specifies two size parameters: geometrical F.S. extent F, and "effective" F.S. size Feq derived from resolution patterns. Both parameters are in general not a measure of either loadability (we) or imaging performance (B). It is suggested to base a future standard on a rigorous criterion. Since rigorous data are difficult to obtain at present, approximate methods for compliance verification must be allowed; e.g. by utilizing the classical methods of resolution, pinhole and slit camera in a meaningful way.

Citation Download Citation

Martin Braun, Werner Roeck, and Gary Gillan "X-Ray Tube Performance Characteristics And Their Effect On Radiologic Image Quality", Proc. SPIE 0152, Recent and Future Developments in Medical Imaging I, (15 November 1978); https://doi.org/10.1117/12.938200

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