Radiation-hard strip detectors on oxygenated silicon

被引:1
作者
Andricek, L [1 ]
Lutz, G
Moser, HG
Richter, RH
机构
[1] MPI Extraterr Phys, Halbleiterlabor, D-81739 Munich, Germany
[2] Max Planck Inst Phys & Astrophys, Werner Heisenberg Inst, D-80805 Munich, Germany
关键词
oxygen enrichment; radiation hardness; silicon strip detector;
D O I
10.1109/TNS.2002.1039624
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Recent results of the RD48 (ROSE) collaboration suggest the usage of oxygen-enriched silicon for sensors operated in the harsh radiation environment of future high luminosity experiments. To investigate if the anticipated beneficial properties are still present after full processing of the wafers, full-size strip detectors designed for the innermost ring of the ATLAS forward region have been fabricated on oxygen-enriched silicon by CiS, Germany. These sensors, together with sensors processed in exactly the same way on standard substrates of different thickness, have been exposed to 3 x 10(14) 24 GeV/c protons/cm(2) at the CERN PS. After irradiation, the sensors went through a controlled annealing up to an equivalent annealing time of 32 d at 25degrees C. We are presenting the comparison between these sensors based on I-V and C-V measurements and the investigation of the charge-collection efficiency obtained with a Sr-90 source and fast analog readout at Large Hadron Collider speed.
引用
收藏
页码:1117 / 1121
页数:5
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