TITLE

Radiographs simulation using system MTF

AUTHOR(S)
Koenig, A.; Glie`re, A.
PUB. DATE
May 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 509 Issue 1, p643
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Sindbad is a software package dedicated to the simulation of the radiographic process. It is used during the design stage of NDE systems or as a help in defect detection assessment. As spatial resolving power is essential to determine detection limits of a radiographic system, a Modulation Transfer Function (MTF) based blurring module has been developed. MTF is a widespread concept and a useful mathematical tool describing the system spatial frequency response. The whole system MTF can be simply built from the MTF of the different system components, such as the x-ray source and the detector. The x-ray source MTF model is based on the convolution of the energy image, simulated assuming the source is punctual, with a focal spot size dependent gaussian kernel. The MTF of the detector is taken into account as follows. The 2D MTF is built from available measurements or model results. The synthetic image is then obtained by convolution. Experimentation were carried out in order to check the validity of the module. Measurement of the MTF of a radiographic system was performed and radiographs of simple objects were acquired. The agreement between actual and simulated radiographs is good. © 2000 American Institute of Physics.
ACCESSION #
6029069

 

Related Articles

  • DEVELOPING AND USING BENCHMARKS FOR EDDY CURRENT SIMULATION CODES VALIDATION TO ADDRESS INDUSTRIAL ISSUES. Mayos, M.; Buvat, F.; Costan, V.; Moreau, O.; Gilles-Pascaud, C.; Reboud, C.; Foucher, F. // AIP Conference Proceedings;6/23/2011, Vol. 1335 Issue 1, p1769 

    To achieve performance demonstration, which is a legal requirement for the qualification of NDE processes applied on French nuclear power plants, the use of modeling tools is a valuable support, provided that the employed models have been previously validated. To achieve this, in particular for...

  • Results of 2006 UT Modeling Benchmark Obtained with CIVA at CEA: Beam Modeling and Flaw Signal Prediction. Cinquin, M.; Le Ber, L.; Lonné, S.; Mahaut, S. // AIP Conference Proceedings;2007, Vol. 894 Issue 1, p1870 

    This benchmark is to compare experimental data with results of simulation. The experimental setup involves pulse-echo responses on planar backwall breaking defects using P- or SV-wave contact transducer. The interest is to evaluate the influence of a varying slope of the backwall on the corner...

  • Recent Development in Deterministic Radiography Simulations. Inanc, Feyzi // AIP Conference Proceedings;2007, Vol. 894 Issue 1, p523 

    As it happened for some other NDE methods, the simulation studies for the radiography have become a distinct discipline as well. Since radiation transport plays an important role in the radiography, the simulation studies implement two major radiation transport approaches, namely deterministic...

  • Moderato: A Monte-Carlo radiographic simulation. Bonin, A.; Lavayssie`re, B.; Chalmond, B. // AIP Conference Proceedings;2000, Vol. 509 Issue 1, p651 

    To ensure security on nuclear power plants, Electricite´ de France uses radiographic inspection for systemmatic pipe control. The extreme temperature and pressure conditions to which pipes are submitted may generate structural defects that must be detected and characterized. In order to...

  • RADIOGRAPHIC BENCHMARK PROBLEM 2009—SCATTER CALCULATIONS IN MODELLING. Jaenisch, G.-R.; Bellon, C.; Schumm, A.; Tabary, J.; Duvauchelle, Ph. // AIP Conference Proceedings;2/22/2010, Vol. 1211 Issue 1, p2117 

    Code Validation is a permanent concern in computer simulation, and has been addressed repeatedly in eddy current and ultrasonic modelling. A good benchmark problem is sufficiently simple to be taken into account by various codes without strong requirements on geometry representation...

  • HADES, a radiographic simulation code. Aufderheide, Maurice B.; Slone, Dale M.; Schach von Wittenau, Alexis E. // AIP Conference Proceedings;2001, Vol. 557 Issue 1, p507 

    We describe features of the HADES radiographic simulation code. We begin with a discussion of why it is useful to simulate transmission radiography. The capabilities of HADES are described, followed by an application of HADES to a dynamic experiment recently performed at the Los Alamos Neutron...

  • Issues with the High Energy Radiography Simulations. Inanc, Feyzi // AIP Conference Proceedings;2003, Vol. 657 Issue 1, p561 

    Although most of the industrial radiography relies on x-ray tubes, in some cases, gamma rays or linear accelerators form the interrogating radiation beam. Due to high energy levels of photons in such cases, new physics start to accompany radiation absorption, scattering events. Most of these new...

  • Modelling Based Radiography for NDE of Subsea Pipelines. Haith, Misty I.; Ewert, Uwe; Hohendorf, Stefan; Bellon, Carsten; Deresch, Andreas; Huthwaite, Peter; Lowe, Michael J.S.; Zscherpel, Uwe // AIP Conference Proceedings;2016, Vol. 1706 Issue 1, p1 

    This work presents the use of limited experimental measurements to develop a set of calibrated simulation parameters that can then be used for reliable simulation of subsea pipeline inspections. The modelling software aRTist is used as the simulation tool, and the calibration is through...

  • DZero Monte Carlo simulation. Graham, G. E. // AIP Conference Proceedings;2001, Vol. 583 Issue 1, p313 

    The DZero Monte Carlo is discussed. In particular, the generation and GEANT simulation programs are described. The DZero Parametrized Monte Carlo System (PMCS) is also discussed. Finally, the DZero Monte Carlo mass production system is described. © 2001 American Institute of Physics.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics