Design and performance of the silicon sensors for the CMS barrel pixel detector

Johns Hopkins University, Baltimore, MD 21218, USA
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment (Impact Factor: 1.22). 03/2007; 584(1):25-41. DOI: 10.1016/j.nima.2007.08.151
Source: arXiv

ABSTRACT The CMS experiment at the (LHC) includes a hybrid silicon pixel detector for the reconstruction of charged tracks and of the interaction vertices. The barrel region consists of n-in-n sensors with cell size processed on diffusion oxygenated float zone silicon. A biasing grid is implemented and pixel isolation is achieved with the moderated p-spray technique. An extensive test program was carried out on the H2 beam line of the CERN-SPS. In this paper we describe the sensor layout, the beam test setup and the results obtained with both irradiated and non-irradiated prototype devices. Measurements of charge collection, hit detection efficiency, Lorentz angle and spatial resolution are presented.

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Available from: Claude Amsler, Sep 28, 2015
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    Journal of Instrumentation 06/2012; 7(06). DOI:10.1088/1748-0221/7/06/C06002 · 1.40 Impact Factor
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    Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 04/2011; 658(1). DOI:10.1016/j.nima.2011.04.062 · 1.22 Impact Factor
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    • "In the TDR the modules are specified up to 6 × 10 14 1 MeV n.e. While the detector will remain efficient for at least twice this dose the spacial resolution will gradually decrease due to the reduction of the Lorentz angle with higher bias voltages [4]. 3. "
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