X-ray tube voltage dependence of detective quantum efficiencies of front and back screens

Hidetaka Arimura; Takeshi Ikari; Mitsuhide Okamoto; Hideaki Kubota; Masao Matsumoto; Atsushi Takigawa; Nobuyuki Nakamori; Hitoshi Kanamori

doi:10.1117/12.211900

15 June 1995 X-ray tube voltage dependence of detective quantum efficiencies of front and back screens

Hidetaka Arimura, Takeshi Ikari, Mitsuhide Okamoto, Hideaki Kubota, Masao Matsumoto, Atsushi Takigawa, Nobuyuki Nakamori, Hitoshi Kanamori

Author Affiliations +

Proceedings Volume 2519, X-Ray and Ultraviolet Sensors and Applications; (1995) https://doi.org/10.1117/12.211900
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

By separating the Wiener spectra of screen mottle of a medical screen/film system for various tube voltages into those of quantum mottle and structure mottle, we experimentally determined the tube voltage dependence of the detective quantum efficiencies (DQEs) of the front of back screens. For the purpose, using the DQE, the equation of the Wiener spectrum of the quantum mottle has been expressed, and using the equation, our method for separating the Wiener spectra of the screen mottle was modified. Both the DQEs of the front and back screens decreased with tube voltage. The DQE of the front screen at each tube voltage was greater than that of the back screen. We explained the tube voltage dependence of the DQEs using the dependence of the first and second moments of absorbed x-ray energy distribution in the screen obtained using our data of incident x-ray spectra for various tube voltages and Swank's noise-equivalent absorption spectra.

Citation Download Citation

Hidetaka Arimura, Takeshi Ikari, Mitsuhide Okamoto, Hideaki Kubota, Masao Matsumoto, Atsushi Takigawa, Nobuyuki Nakamori, and Hitoshi Kanamori "X-ray tube voltage dependence of detective quantum efficiencies of front and back screens", Proc. SPIE 2519, X-Ray and Ultraviolet Sensors and Applications, (15 June 1995); https://doi.org/10.1117/12.211900

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
12 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

X-rays

Photons

Quantum efficiency

Absorption

Signal to noise ratio

Spatial frequencies

X-ray detectors

Show All Keywords

Keywords/Phrases

Search In:

Publication Years