کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7122684 | 1461494 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A prototype system to measure X-ray absorption spectra for diagnosis in vivo
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We presented a new non-destructive test system for recording of X-ray absorption spectra. Its purpose was to investigate X-ray absorption spectral characteristics of organic and inorganic compounds and to explore the potential for biomedical pathological examination in vivo. An X-ray source with a maximum voltage of 80Â kV and maximum current of 1Â mA was selected for both good penetration and low radiation dose. A cadmium telluride (CdTe) detector was chosen for its wide energy range. Pulse-height analysis of the output of this sensor yielded energy spectra of X-rays that had passed through the sample. We calibrated the sensor with varying X-ray tube voltages and used tungsten X-ray lines to verify its accuracy. Different kinds of powders, aqueous solutions, aluminium alloys, and plastics were used as experimental samples to show their X-ray spectral absorption differences. The instrument had good prospects for further diagnostics combining radiology and tissue optics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 93, November 2016, Pages 252-257
Journal: Measurement - Volume 93, November 2016, Pages 252-257
نویسندگان
Bo Hu, Xingliang Zhang, Qinan Ouyang, Xiaomei Wu, Zheng Fang,