Laboratory And Testbeam Results For Thin And Epitaxial Planar Sensors For Hl Lhc
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Laboratory And Testbeam Results For Thin And Epitaxial Planar Sensors For Hl Lhc
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Author :
language : en
Publisher:
Release Date : 2015
Laboratory And Testbeam Results For Thin And Epitaxial Planar Sensors For Hl Lhc written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
The High-Luminosity LHC (HL-LHC) upgrade of the CMS pixel detector will require the development of novel pixel sensors which can withstand the increase in instantaneous luminosity to L = 5 × 1034 cm-2s-1 and collect ~ 3000fb-1 of data. The innermost layer of the pixel detector will be exposed to doses of about 1016 neq/ cm2. Hence, new pixel sensors with improved radiation hardness need to be investigated. A variety of silicon materials (Float-zone, Magnetic Czochralski and Epitaxially grown silicon), with thicknesses from 50 [mu]m to 320 [mu]m in p-type and n-type substrates have been fabricated using single-sided processing. The effect of reducing the sensor active thickness to improve radiation hardness by using various techniques (deep diffusion, wafer thinning, or growing epitaxial silicon on a handle wafer) has been studied. Furthermore, the results for electrical characterization, charge collection efficiency, and position resolution of various n-on-p pixel sensors with different substrates and different pixel geometries (different bias dot gaps and pixel implant sizes) will be presented.
Pixel Sensors With Slim Edges And Small Pitches For The Cms Upgrades For Hl Lhc
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Author :
language : en
Publisher:
Release Date : 2016
Pixel Sensors With Slim Edges And Small Pitches For The Cms Upgrades For Hl Lhc written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Planar n-in-n silicon detectors with small pitches and slim edges are being investigated for the innermost layers of tracking devices for the foreseen upgrades of the LHC. Sensor prototypes compatible with the CMS readout, fabricated by Sintef, were tested in the laboratory and with a 120 GeV/c proton beam at the Fermilab test beam facility before and after irradiation with up to 2x1015 neq/cm2 fluence. Preliminary results of the data analysis are presented.