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ATLAS Inner Tracker Upgrade for HL-LHC: Silicon microstrip detector metrology

Xu, Xiangyu LU (2023) FYSM60 20231
Particle and nuclear physics
Department of Physics
Abstract
The Large Hadron Collider (LHC) will be upgraded to the High-Luminosity LHC (HL-LHC) by the end of this decade, with five times larger luminosity and 200 inelastic collisions per proton-proton bunch crossing. Thus, the ATLAS detector is challenged to survive the stronger radiation and the increased particle flux. As a result, the new ATLAS Inner Tracker (ITk) will replace the current one with a new full-silicon detector. The new detector requires high precision during manufacturing. Thus, a metrology process is necessary, in which an optical zoom microscope with precise position measurement is used. A post-process program has been created to handle the measuring results. Validation and tests for this method for several types of the sensor... (More)
The Large Hadron Collider (LHC) will be upgraded to the High-Luminosity LHC (HL-LHC) by the end of this decade, with five times larger luminosity and 200 inelastic collisions per proton-proton bunch crossing. Thus, the ATLAS detector is challenged to survive the stronger radiation and the increased particle flux. As a result, the new ATLAS Inner Tracker (ITk) will replace the current one with a new full-silicon detector. The new detector requires high precision during manufacturing. Thus, a metrology process is necessary, in which an optical zoom microscope with precise position measurement is used. A post-process program has been created to handle the measuring results. Validation and tests for this method for several types of the sensor have been done in this project in Lund, Uppsala and Copenhagen. (Less)
Popular Abstract
The primary goal of this project is to demonstrate the measurement of the position of the electronics on a silicon sensor with a commercial tool with a zoom-microscope and precise moving table, known as the SmartScope. This kind of sensor will replace the current innermost detector in CERN’s largest collider, namely the Large Hadron Collider (LHC), as the upgrade will finish by the end of this decade. This upgrade will multiply the flux of protons in each collision, and will require the new detector to have a stronger tolerance to the radiation and the large amount of particles per collision. A new silicon sensor with sub-millimetre segments is developed, and the fine bonding between the electronics and the silicon sensor requires the... (More)
The primary goal of this project is to demonstrate the measurement of the position of the electronics on a silicon sensor with a commercial tool with a zoom-microscope and precise moving table, known as the SmartScope. This kind of sensor will replace the current innermost detector in CERN’s largest collider, namely the Large Hadron Collider (LHC), as the upgrade will finish by the end of this decade. This upgrade will multiply the flux of protons in each collision, and will require the new detector to have a stronger tolerance to the radiation and the large amount of particles per collision. A new silicon sensor with sub-millimetre segments is developed, and the fine bonding between the electronics and the silicon sensor requires the quality control process in this project. (Less)
Please use this url to cite or link to this publication:
author
Xu, Xiangyu LU
supervisor
organization
course
FYSM60 20231
year
type
H2 - Master's Degree (Two Years)
subject
keywords
High energy physics experiment, LHC, HL-LHC, ATLAS, ITk, Metrology, Measurement
language
English
id
9126540
date added to LUP
2023-06-19 14:40:02
date last changed
2023-06-19 14:40:02
@misc{9126540,
  abstract     = {{The Large Hadron Collider (LHC) will be upgraded to the High-Luminosity LHC (HL-LHC) by the end of this decade, with five times larger luminosity and 200 inelastic collisions per proton-proton bunch crossing. Thus, the ATLAS detector is challenged to survive the stronger radiation and the increased particle flux. As a result, the new ATLAS Inner Tracker (ITk) will replace the current one with a new full-silicon detector. The new detector requires high precision during manufacturing. Thus, a metrology process is necessary, in which an optical zoom microscope with precise position measurement is used. A post-process program has been created to handle the measuring results. Validation and tests for this method for several types of the sensor have been done in this project in Lund, Uppsala and Copenhagen.}},
  author       = {{Xu, Xiangyu}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{ATLAS Inner Tracker Upgrade for HL-LHC: Silicon microstrip detector metrology}},
  year         = {{2023}},
}