Use of Monte-Carlo method for the reconstruction of response functions and radiation spectra in radiography
.In radiographic testing it is necessary to know the response function of the instrumentation and the energy distribution of the used radiation sources. In particular, it is important for the appropriate interpretation of radiographic images and for the calibration of the measuring equipment. But information on the functions is often incomplete or inaccessible. The developed algorithms based on Monte Carlo method allow designing the operator equations for determination of the response function and the used radiation spectrum. The mentioned operators connect the spectrum of the source radiation and the registration values such as density of the X-ray film or fluorescent screen, spectrum of electrons produced by the used ionizing radiation etc. As a result the systems of integral equations are obtained. The robust methods for solving the corresponding ill-posed problems are developed. The opportunities of the presented tool are discussed in terms of various examples.
Monte Carlo method reconstruction radiography response function radiation spectrum
Mikhail ZUKHOVSKIY Sergey PODOLIAKO
Keldysh Institute for Applied Mathematics, Russian Academy of Sciences Miusskaya Square, 4, Moscow, 125047, Russia
国际会议
第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)
上海
英文
164-171
2008-10-25（万方平台首次上网日期，不代表论文的发表时间）