Cart (Loading....) | Create Account
Close category search window

Positron emission tomography of large rock samples using a multiring PET instrument

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Maguire, R.P. ; Paul Scherrer Inst., Villigen, Switzerland ; Missimer, J.H. ; Emert, F. ; Townsend, D.W.
more authors

The technique of positron emission tomography (PET) is well established in the field of medical imaging. Non-medical applications have also been shown to be valuable in the measurement of dynamic chemical processes, specifically in the determination of the characteristics of small rock samples. Since rock is more dense than tissue, the problems of attenuation and scatter are accentuated. However, we are able to show that measurement of porosity in a large rock sample (21.5 cm diameter) is indeed practicable using three-dimensional (3-D) acquisition techniques. Due to multiple scattering of the photons in the rock and the cylindrical symmetry of the experiment, we measured a scatter distribution which is approximately homogeneous, allowing a correction for scattered radiation with a simple method. The problems of determining attenuation coefficients and applying a scatter correction makes absolute quantisation difficult. However, relative changers in porosity within the sample can be measured with a spatial resolution not appreciably different from that in water

Published in:

Nuclear Science, IEEE Transactions on  (Volume:44 ,  Issue: 1 )

Date of Publication:

Feb 1997

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.