A silicon strip detector coupled to the RX64 ASIC for X-ray diagnostic imaging
A silicon strip detector coupled to the RX64 ASIC for X-ray diagnostic imaging
复制标题
与 RX64 ASIC 耦合的硅条探测器，用于 X 射线诊断成像
DOI：
10.1016/j.nima.2003.08.107
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发表时间：
2003
影响因子：
1.4
通讯作者：
P. Wia̧cek
中科院分区：
文献类型：
--
作者：
G. Baldazzi;D. Bollini;A. Rodriguez;W. Dąbrowski;A. Garcia;M. Gambaccini;P. Giubellino;M. Gombia;P. Grybos;M. Idzik;A. Marzari;L. Montaño;F. Prino;L. Ramello;M. Sitta;K. Swientek;A. Taibi;A. Tuffanelli;R. Wheadon;P. Wia̧cek
首先给出了与RX64 ASIC耦合的100 μm间距硅微带探测器的实验结果。该系统能够在数字x射线成像中进行单光子计数，可能应用于双能量乳房x线照相术和血管造影。该检测系统的主要特点是噪声低、空间分辨率好、计数率高。基于荧光x射线源和准单色x射线束在8 - 36kev能量范围内，条带与入射x射线正交或平行的结果，讨论了该系统的能量分辨率和转换效率。我们还介绍了用有机玻璃幻影获得的初步成像结果，该幻影具有充满碘酸溶液的微小圆柱形腔，模拟患者血管；在这种情况下，x射线束有两个分量，分别在33.17 keV的碘k边缘以下和之上。
First results from a silicon microstrip detector with 100 μm pitch coupled to the RX64 ASIC are presented. The system is capable of single photon counting in digital X-ray imaging, with possible applications to dual energy mammography and angiography. The main features of the detecting system are low noise, good spatial resolution and high counting rate capability. The energy resolution and the conversion efficiency of the system are discussed, based on results obtained with fluorescence X-ray sources and quasi-monochromatic X-ray beams in the 8–36 keV energy range, with strips being either orthogonal or parallel to the incoming X-rays. We present also preliminary imaging results obtained with a plexiglass phantom with tiny cylindrical cavities filled with iodate solution, simulating patient vessels; in this case the X-ray beam has two components, respectively below and above the iodine K-edge at 33.17 keV .