skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Pseudolocal tomography

Abstract

Local tomographic data is used to determine the location and value of a discontinuity between a first internal density of an object and a second density of a region within the object. A beam of radiation is directed in a predetermined pattern through the region of the object containing the discontinuity. Relative attenuation data of the beam is determined within the predetermined pattern having a first data component that includes attenuation data through the region. The relative attenuation data is input to a pseudo-local tomography function, where the difference between the internal density and the pseudo-local tomography function is computed across the discontinuity. The pseudo-local tomography function outputs the location of the discontinuity and the difference in density between the first density and the second density. 7 figs.

Inventors:
;
Issue Date:
Research Org.:
University of California
OSTI Identifier:
264569
Patent Number(s):
5,539,800
Application Number:
PAN: 8-410,620
Assignee:
Univ. of California, Office of Technology Transfer, Alameda, CA (United States)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 23 Jul 1996
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; TOMOGRAPHY; IMAGE PROCESSING; DEFECTS; NONDESTRUCTIVE TESTING; MATERIALS; EQUIPMENT

Citation Formats

Katsevich, A J, and Ramm, A G. Pseudolocal tomography. United States: N. p., 1996. Web.
Katsevich, A J, & Ramm, A G. Pseudolocal tomography. United States.
Katsevich, A J, and Ramm, A G. Tue . "Pseudolocal tomography". United States.
@article{osti_264569,
title = {Pseudolocal tomography},
author = {Katsevich, A J and Ramm, A G},
abstractNote = {Local tomographic data is used to determine the location and value of a discontinuity between a first internal density of an object and a second density of a region within the object. A beam of radiation is directed in a predetermined pattern through the region of the object containing the discontinuity. Relative attenuation data of the beam is determined within the predetermined pattern having a first data component that includes attenuation data through the region. The relative attenuation data is input to a pseudo-local tomography function, where the difference between the internal density and the pseudo-local tomography function is computed across the discontinuity. The pseudo-local tomography function outputs the location of the discontinuity and the difference in density between the first density and the second density. 7 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {7}
}