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.:
- Univ. of California (United States)
- OSTI Identifier:
- 264569
- Patent Number(s):
- 5539800
- 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}
}