کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1830125 | 1027472 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dependence of image quality on energy spread for a Bragg diffraction based radiography system
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Dependence of image quality on energy spread for a Bragg diffraction based radiography system Dependence of image quality on energy spread for a Bragg diffraction based radiography system](/preview/png/1830125.png)
چکیده انگلیسی
The aim of this work is to investigate the relationship between contrast and energy resolution of a quasi-monochromatic X-ray system based on Bragg diffraction on a mosaic crystal. Three different energies have been considered: 18, 22 and 26 keV. A commercial phantom containing large and small area details and a digital detector have been used. Results show that for large area details and for a certain value of energy, the energy spread of the incident X-ray beams produces a small reduction of the contrast, while for small area details the high reduction of the contrast is principally due to the spatial resolution properties of the system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 580, Issue 2, 1 October 2007, Pages 986–989
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 580, Issue 2, 1 October 2007, Pages 986–989
نویسندگان
P. Baldelli, A. Bacci, U. Bottigli, M. Ferrario, M. Gambaccini, D. Giulietti, B. Golosio, C. Maroli, P. Oliva, V. Petrillo, L. Serafini, S. Stumbo, A. Taibi, P. Tomassini, C. Vaccarezza,