Analysis of the noise components of the various imaging plates

Hiroshi Matsumoto; Yuichi Hosoi; Yasuhiko Goto; Satoshi Arakawa

doi:10.1117/12.533565

6 May 2004 Analysis of the noise components of the various imaging plates

Hiroshi Matsumoto, Yuichi Hosoi, Yasuhiko Goto, Satoshi Arakawa

Proceedings Volume 5368, Medical Imaging 2004: Physics of Medical Imaging; (2004) https://doi.org/10.1117/12.533565
Event: Medical Imaging 2004, 2004, San Diego, California, United States

Abstract

We analyzed the relationship between the noise components and detectability of the various Imaging Plates to find the essential factors for improving Imaging Plate. CR system noise is classified into quantum noise and fixed noise. The dominant component of fixed noise is the structural noise of IP. The contribution of the structural noise was relatively high at higher exposure and at higher spatial frequency. For example the ratio of structural noise of early type of IP is 55% in case of 2 mR (5.16 × 10^-7 C/kg) exposure at 2 cycles/mm spatial frequency. On the other hand, the ratio of the latest type is about 20%. This improvement leads to 2.3 times NEQ combined with improvement of quantum noise. Threshold depth of the 0.5 mm diameter hole of CD diagram was improved from 1.4 mm to 0.8 mm according to the improvement of NEQ from 50,000 to 100,000 /mm² at the related spatial frequencies. Amount of improvement of threshold contrast was influenced especially by the NEQ at relatively high spatial frequencies. So improvement of the structural noise, which is dominant at higher frequency, is important as well as quantum noise.

Citation Download Citation

Hiroshi Matsumoto, Yuichi Hosoi, Yasuhiko Goto, and Satoshi Arakawa "Analysis of the noise components of the various imaging plates", Proc. SPIE 5368, Medical Imaging 2004: Physics of Medical Imaging, (6 May 2004); https://doi.org/10.1117/12.533565

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