Abstract

As part of the ATLAS upgrades for the High-Luminosity LHC (HL-LHC) the current ATLAS Inner Detector (ID) will be replaced by a new Inner Tracker (ITk). The ITk will consist of two main components: a semi-conductor pixel detector at the innermost radii, and a silicon strip detector covering larger radii out as far as the ATLAS solenoid magnet including the volume currently occupied by the ATLAS Transition Radiation Tracker (TRT). The primary challenges faced by the ITk are the higher planned read out rate of ATLAS, the higher density of charged particles in HL-LHC conditions, and the corresponding high radiation doses that the detector and electronics will receive. The ATLAS collaboration is currently working on designing and testing all aspects of the sensors, readout, mechanics, cooling and integration to meet these goals and a technical design report (TDR) is being prepared. This report is an overview of the ITk strip detector, highlighting the current status and the road ahead.

Highlights

  • 1.1 ATLAS Inner Detector at the High-Luminosity LHC (HL-LHC)The current Inner Detector (ID) of the ATLAS experiment [1] was designed for running at LHC conditions for up to ten years

  • The current ID consists of three main subsystems: a silicon pixel detector at the smallest radii, a silicon strip detector (SCT) at larger radii, and a Transition Radiation Tracker (TRT) based on straw tube technology extending to the edge of the ID volume at a radius of 1 m

  • The Inner Tracker (ITk) strip detector design is at a mature stage with the technical design report (TDR) set to be released later this year

Read more

Summary

ATLAS Inner Detector at the HL-LHC

The current Inner Detector (ID) of the ATLAS experiment [1] was designed for running at LHC conditions for up to ten years. It will not be able to withstand the higher particle density environment or higher total dose that will be delivered at the High-Luminosity LHC (HL-LHC) [2]. Extracting meaningful physics in this environment requires a new radiation hard inner detector with high granularity. The current ID consists of three main subsystems: a silicon pixel detector at the smallest radii, a silicon strip detector (SCT) at larger radii, and a Transition Radiation Tracker (TRT) based on straw tube technology extending to the edge of the ID volume at a radius of 1 m. The design of the ITk strip detector and component testing is currently underway, with a module pre-production stage set to begin in 2018

Design
Layout
Electronics architecture
ASIC testing
Test beams
Production
Findings
Conclusions
Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call