کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1831813 1027505 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measurement and Monte Carlo modeling of the spatial response of scintillation screens
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Measurement and Monte Carlo modeling of the spatial response of scintillation screens
چکیده انگلیسی

In this article, we propose a detailed protocol to carry out measurements of the spatial response of scintillation screens and to assess the agreement with simulated results. The experimental measurements have been carried out using a practical implementation of the slit method. A Monte Carlo simulation model of scintillator screens, implemented with the toolkit Geant4, has been used to study the influence of the acquisition setup parameters and to compare with the experimental results. An algorithm of global stochastic optimization based on a localized random search method has been implemented to adjust the optical parameters (optical scattering and absorption coefficients). The algorithm has been tested for different X-ray tube voltages (40, 70 and 100 kV). A satisfactory convergence between the results simulated with the optimized model and the experimental measurements is obtained.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 581, Issue 3, 1 November 2007, Pages 719–727
نویسندگان
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