کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5467825 | 1518620 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Recent progress of phase-contrast imaging at Tsinghua Thomson-scattering X-ray source
ترجمه فارسی عنوان
پیشرفت اخیر در تصویربرداری فاز کنتراست در منبع اشعه ایکس پراکندگی تسونگوا تامسون
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کلمات کلیدی
پراکندگی تامسون، تصویربرداری فاز کنتراست، مونت کارلو، عملکرد فوتون،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
چکیده انگلیسی
Due to its small spot size, a Thomson-scattering X-ray source can produce high spatial coherent X-ray pulse, which is the prerequisite for phase-contrast imaging. In this paper, we will introduce the recent progress of phase-contrast imaging at Tsinghua Thomson-scattering X-ray source (TTX). Since the generation of first hard X-ray pulse at TTX in 2012, we have demonstrated the capacity of in-line phase contrast imaging using a refill of gel ink pen. And then, a Monte Carlo simulation tool for in-line phase-contrast imaging based on Thomson-scattering X-ray source has been developed. Taking advantage of this code, we calculate the typical requirement of photon numbers for in-line phase-contrast imaging based on this type of X-ray source. After the upgrade of infrared laser system and control program, the total photon yield of TTX has been increased to â¼2Â ÃÂ 107Â photons/pulse at X-ray central energy of 25Â keV and 50Â keV with RMS jitter less than 6% and 4% respectively. A new run of experiments about in-line phase-contrast imaging and phase-contrast computed tomography (CT) have been carried out at TTX.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 402, 1 July 2017, Pages 364-369
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 402, 1 July 2017, Pages 364-369
نویسندگان
Zhijun Chi, Lixin Yan, Yingchao Du, Zhen Zhang, Wenhui Huang, Huaibi Chen, Chuanxiang Tang,