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Journal ArticleDOI

Silicon sensor development for the ATLAS upgrade for SLHC

Yoshinobu Unno
- 10 Dec 2006 - 
- Vol. 569, Iss: 1, pp 41-47
TLDR
In this article, the authors report on new sensors with various n-strip isolation structures that have been designed and are being fabricated in the search for the best approach, including a 3D sensor for the Pixel layers and an n-in-p sensor with highvoltage operation capability for the SCT.
Abstract
The accelerator upgrade of the large hadron collider (LHC) to super-LHC is foreseen around the year 2015. The upgrade is to increase the luminosity to 10 35  cm −2  s −1 and to accumulate 3000 fb −1 . To cope with the increased occupancy and fluence, the transition radiation tracker (TRT) will be replaced with silicon microstrip sensors, and the semiconductor tracker (SCT) with short-strip silicon microstrip sensors. Both the ATLAS Pixel and SCT communities need to develop new sensors to work to fluences of 1×10 16 1-MeV-neq/cm 2 and to 8×10 14 , respectively. Technologies being investigated include a “3D sensor” for the Pixel layers, and an “n-in-p sensor” with high-voltage operation capability for the SCT. The “n-in-p sensor” requires n-strip isolation with high onset voltage of microdischarge. We report here on new sensors with various n-strip isolation structures that have been designed and are being fabricated in the search for the best approach.

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Citations
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Journal ArticleDOI

Simulations of radiation-damaged 3D detectors for the Super-LHC

TL;DR: In this paper, the performances of various 3D detector structures are simulated with up to 1 × 10 16 ǫ-1 MeV-n eq / cm 2 radiation damage.
Journal ArticleDOI

p-Bulk silicon microstrip sensors and irradiation

TL;DR: In this paper, the leakage current, onset of microdischarge, body capacitance, charge collection efficiency, and n-strip isolation at the fluences of nil, 0.7 10 14, and 7 10 14 1-MeV neutrons equivalent (neq)/cm 2.
Journal ArticleDOI

Development of Radiation Hard ${\rm N}^{+}$ -on-P Silicon Microstrip Sensors for Super LHC

TL;DR: In this article, a non-inverting n+-on-p sensor was used at the Super LHC experiment to measure the leakage current increase, noise figures, electrical strip isolation, full depletion voltage evolution, and charge collection efficiency.
Journal ArticleDOI

Design, Simulation, Production and Initial Characterisation of 3D Silicon Detectors

TL;DR: In this article, a double-sided 3D detector with n-and p-type electrode columns passing through a silicon substrate has been presented, which greatly reduces the detector's depletion voltage and collection time and improves its radiation hardness.
References
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Journal ArticleDOI

Physics potential and experimental challenges of the LHC luminosity upgrade

TL;DR: In this article, the authors discuss the physics potential and the experimental challenges of an upgraded LHC running at an instantaneous luminosity of 1035 cm-2s-1, and the detector R&D needed to operate ATLAS and CMS in a very high radiation environment and the expected detector performance.
Journal ArticleDOI

Performances of miniature microstrip detectors made on oxygen enriched p-type substrates after very high proton irradiation

TL;DR: In this paper, the performance of n-strip readout (n-in-n) detectors was investigated in terms of the charge collection efficiency as a function of the applied bias voltage.
Journal ArticleDOI

Development of radiation tolerant semiconductor detectors for the Super-LHC.

Michael Moll, +250 more
TL;DR: The CERN RD50 collaboration as mentioned in this paper is working on the development of semiconductor sensors matching the requirements of the SLHC experiments, which includes 3D, Semi-3D and thin detectors.
Journal ArticleDOI

Proton irradiation on p-bulk silicon strip detectors using 12 GeV PS at KEK

TL;DR: In this article, p-bulk n-strip silicon strip detectors were irradiated with a 12 GeV proton beam at the KEK Proton Synchrotron in order to investigate a radiation damage due to high fluence of high energy protons.
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