Test-beam studies of diamond sensors for SLHC

Uplegger, L.; Ngadiuba, J.; Alagöz, E.; Andresen, Jeff; Arndt, K.; Bolla, G.; Bortoletto, D.; Brom, J. M.; Brosius, Richard; Bubna, M.; Chramowicz, J.; Cumalat, J. P.; Jensen, F.; Krzywda, A.; Kumar, Ashish; Kwan, S.; Lei, C. M.; Menasce, D.; Moroni, L.; Obertino, M. M.; Osipenkov, I.; Perera, L.; Prosser, A.; Rivera, R.; Solano, A.; Tan, P.; Terzo, S.; Tran, N. V.; Wagner, S. R.

doi:10.1016/j.nima.2012.10.011

Cited by 8 publications

(5 citation statements)

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“…Diamond detectors have long been envisaged as a promising solution for the challenges of radiationharsh environments 1 , and are now assuming an important role in R&D activities for the upgrade of the innermost tracking layers at the Large Hadron Collider (LHC) at CERN 2,3 .…”

Section: Introductionmentioning

confidence: 99%

Electrical and Raman-imaging characterization of laser-made electrodes for 3D diamond detectors

Lagomarsino

Bellini

Corsi³

et al. 2014

Diamond and Related Materials

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Pulsed laser writing of graphitic electrodes in diamond is a promising technique for innovative particle detectors. Although of great relevance in 3D fabrication, the processes involved in sub-bandgap bulk irradiation are still not well understood. In this work, Raman imaging is exploited to correlate resistivity and graphitic content in 5÷10 m-thick electrodes, obtained both in the domains of femtoseconds and of nanoseconds of pulse duration. A wide interval of resistivities (60-900 mcm), according to the irradiation technique employed, are correlated with an sp 2 content of the modified material ranging over a factor 2.5. The stress distribution (maximum of about 10 GPa) and the presence of nano-structured sp 3 material around the graphitic columns have also been studied by Raman spectroscopy, and a rationale for the conductive behaviour of the material is presented in terms of the thermodynamics of the process.

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Section: Introductionmentioning

confidence: 99%

Electrical and Raman-imaging characterization of laser-made electrodes for 3D diamond detectors

Lagomarsino

Bellini

Corsi³

et al. 2014

Diamond and Related Materials

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“…The detector hardware and control software is complemented by the Monicelli software, which provides to the users the reconstructed tracks necessary for their data analysis. The telescope has already been used by several experiments and, in particular, has been extensively used by the CMS forward pixel community to test sensor candidates for future CMS pixel upgrades [7][8][9][10][11][12][13][14][15].…”

Section: Discussionmentioning

confidence: 99%

The pixel tracking telescope at the Fermilab Test Beam Facility

Kwan

Lei

Menasce

et al. 2016

Nuclear Instruments and Methods in Physics Research Section A:

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An all silicon pixel telescope has been assembled and used at the Fermilab Test Beam Facility (FTBF) since 2009 to provide precise tracking information for different test beam experiments with a wide range of Detectors Under Test (DUTs) requiring high resolution measurement of the track impact point. The telescope is based on CMS pixel modules left over from the CMS forward pixel production. Eight planes are arranged to achieve a resolution of less than 8 μm on the 120 GeV proton beam transverse coordinate at the DUT position. In order to achieve such resolution with 100  150 μm 2 pixel cells, the planes were tilted to 25 degrees to maximize charge sharing between pixels. Crucial for obtaining this performance is the alignment software, called Monicelli, specifically designed and optimized for this system. This paper will describe the telescope hardware, the data acquisition system and the alignment software constituting this particle tracking system for test beam users.

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“…Sensors were tested with 120 GeV/c protons at the Fermilab Meson Test Beam Facility. The Fermilab testbeam setup is described in detail in [9]. A telescope made of eight planes of planar CMS pixel detectors was used to reconstruct the tracks.…”

Section: Testbeam Measurementsmentioning

confidence: 99%

“…The innermost layers of the pixel detector will be exposed to a fluence of about 10 16 n eq /cm 2 during the operation of HL-LHC. A variety of pixel technologies (3D [3], diamond [4], and Epitaxial silicon [5]) are being explored for the HL-LHC upgrade of CMS experiment. These technologies offer improved radiation hardness, but many of them are expensive and difficult to produce compared to traditional planar sensors.…”

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confidence: 99%

Laboratory and testbeam results for thin and epitaxial planar sensors for HL-LHC

et al. 2015

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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 × 10 34 cm −2 s −1 and collect ∼ 3000fb −1 of data. The innermost layer of the pixel detector will be exposed to doses of about 10 16 n eq /cm 2. 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 µm to 320 µm in p-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) have been studied. The results for electrical characterization, charge collection efficiency, and position resolution of various n-in-p pixel sensors with different substrates and different pixel geometries (different bias dot gaps and pixel implant sizes) will be presented.

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Test-beam studies of diamond sensors for SLHC

Cited by 8 publications

References 1 publication

Electrical and Raman-imaging characterization of laser-made electrodes for 3D diamond detectors

Electrical and Raman-imaging characterization of laser-made electrodes for 3D diamond detectors

The pixel tracking telescope at the Fermilab Test Beam Facility

Laboratory and testbeam results for thin and epitaxial planar sensors for HL-LHC

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