论文标题
稀疏的读数Rigel应用程序特定的集成电路,用于软X射线成像空间应用中的像素硅漂移检测器
The Sparse Readout RIGEL Application Specific Integrated Circuit for Pixel Silicon Drift Detectors in Soft X-Ray Imaging Space Applications
论文作者
论文摘要
出现了用于稀疏的硅像素像素漂移探测器(PIXDD)的稀疏读数,用于空间应用。低泄漏电流(在+20°C时小于1 pa)和阳极电容(小于40 ff)允许每个Pixel(300 UM x 300 UM)(300 UM)(300 UM),组合,阳极的低泄漏电流(在+20°C时小于1 pa),组合,组合,组合允许everal x 300 ff。光谱分辨率的性能甚至在室温下。 Rigel ASIC前端体系结构由128个读出像素单元格(RPC)组成,该矩阵在300 UM侧面的正方形区域,一个中央八角形垫(用于Pixdd阳极凸起键入),并提供完整的Analog处理链,并提供完整形状的信号和拉伸信号。在芯片外围,后端电子设备具有16个集成的10位Wilkinson ADC,配置寄存器和触发器管理电路。进行了单个RPC的表征,其特征是:八个可选的峰值时间从0.5 US到5 US,输入充电范围相当于30 KEV,每通道的功耗小于550 UW。还测试了RPC在55FE时在55FE时在55FE的5.9 keV线和1.8 US的峰值时间测量的4x4原型PixDD和167 eV的全宽度为167 eV。
An Application Specific Integrated Circuit (ASIC), called RIGEL, designed for the sparse readout of a Silicon Pixel Drift Detector (PixDD) for space applications is presented.The low leakage current (less than 1 pA at +20 °C) and anode capacitance (less than 40 fF) of each pixel (300 um x 300 um) of the detector, combined with a low-noise electronics readout, allow to reach a high spectroscopic resolution performance even at room temperature. The RIGEL ASIC front-end architecture is composed by a 2-D matrix of 128 readout pixel cells (RPCs), arranged to host, in a 300 um-sided square area, a central octagonal pad (for the PixDD anode bump-bonding), and the full-analog processing chain, providing a full-shaped and stretched signal. In the chip periphery, the back-end electronics features 16 integrated 10-bits Wilkinson ADCs, the configuration register and a trigger management circuit. The characterization of a single RPC has been carried out whose features are: eight selectable peaking times from 0.5 us to 5 us, an input charge range equivalent to 30 keV, and a power consumption of less than 550 uW per channel. The RPC has been tested also with a 4x4 prototype PixDD and 167 eV Full Width at Half Maximum (FWHM) at the 5.9 keV line of 55Fe at 0°C and 1.8 us of peaking time has been measured.