Published 1988
| Version v1
Report
Restricted
NCT-ART - a neutron computer tomography code based on the algebraic reconstruction technique
Creators
- 1. GKSS-Forschungszentrum Geesthacht G.m.b.H., Geesthacht-Tesperhude (Germany, F.R.). Inst. fuer Physik
Description
A computer code is presented, which calculates two-dimensional cuts of material assemblies from a number of neutron radiographic projections. Mathematically, the reconstruction is performed by an iterative solution of a system of linear equations. If the system is fully determined, clear pictures are obtained. Even for an underdetermined system (low number of projections) reasonable pictures are reconstructed, but then picture artefacts and convergence problems occur increasingly. (orig.) With 37 figs
Abstract (German)
Es wird ein Rechenprogramm vorgestellt, das zweidimensionale Schnittbilder von Materialanordnungen aus einer Anzahl neutronenradiographischer Projektionen berechnet. Mathematisch wird diese Bildrekonstruktion ausgefuehrt durch iterative Aufloesung eines linearen Gleichungssystems. Fuer den Fall des vollstaendig bestimmten Systems erhaelt man einwandfreie Schnittbilder. Auch fuer ein unterbestimmtes System (wenige Projektionen) ergeben sich noch brauchbare Rekonstruktionen, jedoch treten dann verstaerkt Bildfehler und Konvergenzschwierigkeiten auf. (orig.) With 37 figs
Files
Restricted
The record is publicly accessible, but files are restricted to users with access.
Additional details
Publishing Information
- Imprint Pagination
- 40 p.
- Report number
- GKSS--88/E/14
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 19093216
- Subject category
- S42: ENGINEERING;
- Resource subtype / Literary indicator
- Computer Program Description
- Descriptors DEI
- COMPUTER PROGRAM DOCUMENTATION; IMAGE PROCESSING; INDUSTRIAL RADIOGRAPHY; N CODES; NEUTRON RADIOGRAPHY; TOMOGRAPHY
- Descriptors DEC
- COMPUTER CODES; MATERIALS TESTING; NONDESTRUCTIVE TESTING; TESTING