Infrared laser testing of ALICE silicon pixel detector assemblies

Infrared laser testing of ALICE silicon pixel detector assemblies
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DOI：
10.1016/j.nima.2006.04.078
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发表时间：
2006-09
期刊：
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
影响因子：
1.4
通讯作者：
F. Osmić;G. Anelli;F. Antinori;A. Badalà;A. Boccardi;G. Bruno;M. Burns;I. Cali;M. Campbell;M. Caselle;S. Ceresa;P. Chochula;M. Cinausero;J. Conrad;R. Dima;D. Elia;D. Fabris;R. Fini;E. Fioretto;F. Formenti;S. Kapusta;A. Kluge;M. Krivda;V. Lenti;F. Librizzi;M. Lunardon;V. Manzari;M. Morel;S. Moretto;P. Nilsson;G. Pappalardo;V. Paticchio;A. Pepato;G. Prete;A. Pulvirenti;P. Riedler;F. Riggi;L. Šándor;R. Santoro;F. Scarlassara;G. Segato;F. Soramel;G. Stefanini;C. T. Matos;R. Turrisi;L. Vannucci;G. Viesti;T. Virgili
F. Osmić;G. Anelli;F. Antinori;A. Badalà;A. Boccardi;G. Bruno;M. Burns;I. Cali;M. Campbell;M. Caselle;S. Ceresa;P. Chochula;M. Cinausero;J. Conrad;R. Dima;D. Elia;D. Fabris;R. Fini;E. Fioretto;F. Formenti;S. Kapusta;A. Kluge;M. Krivda;V. Lenti;F. Librizzi;M. Lunardon;V. Manzari;M. Morel;S. Moretto;P. Nilsson;G. Pappalardo;V. Paticchio;A. Pepato;G. Prete;A. Pulvirenti;P. Riedler;F. Riggi;L. Šándor;R. Santoro;F. Scarlassara;G. Segato;F. Soramel;G. Stefanini;C. T. Matos;R. Turrisi;L. Vannucci;G. Viesti;T. Virgili
中科院分区：
物理与天体物理3区
文献类型：
--
作者：
F. Osmić;G. Anelli;F. Antinori;A. Badalà;A. Boccardi;G. Bruno;M. Burns;I. Cali;M. Campbell;M. Caselle;S. Ceresa;P. Chochula;M. Cinausero;J. Conrad;R. Dima;D. Elia;D. Fabris;R. Fini;E. Fioretto;F. Formenti;S. Kapusta;A. Kluge;M. Krivda;V. Lenti;F. Librizzi;M. Lunardon;V. Manzari;M. Morel;S. Moretto;P. Nilsson;G. Pappalardo;V. Paticchio;A. Pepato;G. Prete;A. Pulvirenti;P. Riedler;F. Riggi;L. Šándor;R. Santoro;F. Scarlassara;G. Segato;F. Soramel;G. Stefanini;C. T. Matos;R. Turrisi;L. Vannucci;G. Viesti;T. Virgili

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硅像素探测器（SPD）由ALICE内部跟踪系统（ITS）的最内层组成。SPD基于混合像素，设计用于在靠近交互点的高轨道密度区域提供精确的位置确定。SPD由尺寸为50μm（rφ）×425μm(z)的9.8×106pixel单元组成。1200个芯片中的每一个都包含一个8192像素单元的矩阵。基于1060nm二极管激光器，研制了一套测试系统，以研究传感器铝背面触点有开口的单个组件。该测试系统用于研究相邻像素间的电荷共享。这些结果与最近对高能粒子束的测量结果进行了比较。
The Silicon Pixel Detector (SPD) comprises the two innermost layers of the ALICE Inner Tracker System (ITS). The SPD is based on hybrid pixels and is designed to provide precise position determination in the high track density region close to the interaction point. The SPD consists of 9.8×106pixel cells of dimensions 50μm(rφ)×425μm(z). Each of the 1200 chips contains a matrix of 8192 pixel cells. A test system has been developed based on a 1060nm diode laser in order to study single assemblies with an opening in the aluminum back side contact of the sensor. The test system has been used to investigate the charge sharing in adjacent pixels. The results are compared with those from recent measurements in high-energy particle beams.