Pre- and post-irradiation performance of FBK 3D silicon pixel detectors for CMS

A Krzywda,E Alagoz,M Bubna,Maria Margherita Obertino, A Solano,K Arndt,Lorenzo Uplegger,G F Dalla Betta,M Boscardin,Jennifer Ngadiuba,R Rivera,D Menasce, L Moroni,Stefano Terzo,D Bortoletto, A Prosser, J Adreson, S Kwan, I Osipenkov, G Bolla, C M Lei, I P J Shipsey,Ping Tan,N Tran,John Chramowicz,J P Cumalat,Lalith Perera,M Povoli,R Mendicino,A Vilela Pereira, R Brosius,Ashok Kumar,S R Wagner, F Jensen,Sukanta Bose, S Tentindo

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（2014）

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摘要

In preparation for the tenfold luminosity upgrade of the Large Hadron Collider (the HL-LHC) around 2020, three-dimensional (3D) silicon pixel sensors are being developed as a radiation-hard candidate to replace the planar ones currently being used in the CMS pixel detector. This study examines an early batch of FBK sensors (named ATLAS08) of three 3D pixel geometries: 1E, 2E, and 4E, which respectively contain one, two, and four readout electrodes for each pixel, passing completely through the bulk. We present electrical characteristics and beam test performance results for each detector before and after irradiation. The maximum fluence applied is 3.5×1015 n eq/cm2.

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关键词

3D,CMS,Pixel detector,HL-LHC,Radiation-hard

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