48 research outputs found
The Optosystem: validation and testing of the high-speed optical-to-electrical conversion system for the readout of the ATLAS ITk Pixel upgrade
After Run III the ATLAS detector will undergo a series of upgrades to cope
with the harsher radiation environment and increased number of proton
interactions in the High Luminosity-LHC. One of the key projects in this suite
of upgrades is the ATLAS Inner Tracker (ITk). The pixel detector of the ITk
must be read out accurately and with extremely high rate. The Optosystem
performs optical-to-electrical conversion of signals from the pixel modules.
This paper presents recent results related to the performance of the data
transmission chain pivoted on the Optoboards and to the design, testing and
production of the Optopanels.Comment: Topical Workshop on Electronics for Particle Physics 2023, 1 October
2023 to 6 October 2023, Geremeas, Sardini
Combination of searches for invisible decays of the Higgs boson using 139 fbâ»Âč of proton-proton collision data at s=13 TeV collected with the ATLAS experiment
Search for single production of vector-like T quarks decaying into Ht or Zt in pp collisions at âs = 13 TeV with the ATLAS detector
Search for heavy long-lived multi-charged particles in the full LHC Run 2 pp collision data at s = 13 TeV using the ATLAS detector
Measurement of exclusive pion pair production in protonâproton collisions at âs=7 TeV with the ATLAS detector
Search for Majorana neutrinos in same-sign WW scattering events from pp collisions at âs = 13 TeV
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Broadband Infrared Vibrational Nano-spectroscopy Using Thermal Blackbody Radiation
Infrared vibrational nano-spectroscopy based on scattering scanning near-field optical microscopy (s-SNOM) provides intrinsic chemical specificity with nanometer spatial resolution. Here we use incoherent infrared radiation from a 1400 K thermal blackbody emitter for broadband infrared (IR) nano-spectroscopy. With optimized interferometric heterodyne signal amplification we achieve few-monolayer sensitivity in phonon polariton spectroscopy and attomolar molecular vibrational spectroscopy. Near-field localization and nanoscale spatial resolution is demonstrated in imaging flakes of hexagonal boron nitride (hBN) and determination of its phonon polariton dispersion relation. The signal-to-noise ratio calculations and analysis for different samples and illumination sources provide a reference for irradiance requirements and the attainable near-field signal levels in s-SNOM in general. The use of a thermal emitter as an IR source thus opens s-SNOM for routine chemical FTIR nano-spectroscopy
The Optosystem: validation and testing of the high-speed optical-to-electrical conversion system for the readout of the ATLAS ITk Pixel upgrade
After Run III the ATLAS detector will undergo a series of upgrades to cope with the harsher radiation environment and increased number of proton interactions in the High Luminosity-LHC. One of the key projects in this suite of upgrades is the ATLAS Inner Tracker (ITk). The pixel detector of the ITk must be read out accurately and with extremely high rate. The Optosystem performs optical-to-electrical conversion of signals from the pixel modules. This paper presents recent results related to the performance of the data transmission chain pivoted on the Optoboards and to the design, testing and production of the Optopanels