Overview of the CMS beam loss monitoring system (BCML) and diamond detectors surface modification

on behalf of the CMS collaboration

Research output: Contribution to journalArticle

Abstract

In CMS a beam loss monitoring system (BCML) is in place to protect the CMS Tracker from potentially damaging, high intensity beam loss events. Above a pre-defined detector current the LHC beams are automatically dumped. Detectors for this system require high radiation tolerance for stability over time, sufficient signal over noise at a given particle rate and a linear response up to the abort threshold. Poly-crystalline (pCVD) diamond sensors are used as detectors. Additionally sapphire based and diamond-on-iridium prototype sensors were installed during 2017 to investigate more radiation tolerant detectors. This report discusses the BCML system, as well as promising ways of solving problems with adhesion to the detector's plates by using the diamond surface modification with doped diamond sublayers.

Fingerprint

Surface treatment
Diamonds
diamonds
Detectors
Monitoring
detectors
time signals
problem solving
radiation detectors
sensors
radiation tolerance
Radiation
iridium
Iridium
Sensors
sapphire
adhesion
Sapphire
prototypes
Adhesion

Keywords

  • Detectors
  • Diamond
  • Doped diamond
  • Safety system

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

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title = "Overview of the CMS beam loss monitoring system (BCML) and diamond detectors surface modification",
abstract = "In CMS a beam loss monitoring system (BCML) is in place to protect the CMS Tracker from potentially damaging, high intensity beam loss events. Above a pre-defined detector current the LHC beams are automatically dumped. Detectors for this system require high radiation tolerance for stability over time, sufficient signal over noise at a given particle rate and a linear response up to the abort threshold. Poly-crystalline (pCVD) diamond sensors are used as detectors. Additionally sapphire based and diamond-on-iridium prototype sensors were installed during 2017 to investigate more radiation tolerant detectors. This report discusses the BCML system, as well as promising ways of solving problems with adhesion to the detector's plates by using the diamond surface modification with doped diamond sublayers.",
keywords = "Detectors, Diamond, Doped diamond, Safety system",
author = "{on behalf of the CMS collaboration} and V. Okhotnikov and S. Linnik",
year = "2018",
month = "1",
day = "1",
doi = "10.1016/j.nima.2018.09.011",
language = "English",
journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
issn = "0168-9002",
publisher = "Elsevier",

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T1 - Overview of the CMS beam loss monitoring system (BCML) and diamond detectors surface modification

AU - on behalf of the CMS collaboration

AU - Okhotnikov, V.

AU - Linnik, S.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - In CMS a beam loss monitoring system (BCML) is in place to protect the CMS Tracker from potentially damaging, high intensity beam loss events. Above a pre-defined detector current the LHC beams are automatically dumped. Detectors for this system require high radiation tolerance for stability over time, sufficient signal over noise at a given particle rate and a linear response up to the abort threshold. Poly-crystalline (pCVD) diamond sensors are used as detectors. Additionally sapphire based and diamond-on-iridium prototype sensors were installed during 2017 to investigate more radiation tolerant detectors. This report discusses the BCML system, as well as promising ways of solving problems with adhesion to the detector's plates by using the diamond surface modification with doped diamond sublayers.

AB - In CMS a beam loss monitoring system (BCML) is in place to protect the CMS Tracker from potentially damaging, high intensity beam loss events. Above a pre-defined detector current the LHC beams are automatically dumped. Detectors for this system require high radiation tolerance for stability over time, sufficient signal over noise at a given particle rate and a linear response up to the abort threshold. Poly-crystalline (pCVD) diamond sensors are used as detectors. Additionally sapphire based and diamond-on-iridium prototype sensors were installed during 2017 to investigate more radiation tolerant detectors. This report discusses the BCML system, as well as promising ways of solving problems with adhesion to the detector's plates by using the diamond surface modification with doped diamond sublayers.

KW - Detectors

KW - Diamond

KW - Doped diamond

KW - Safety system

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JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

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