First bulk and surface results for the ATLAS ITk Strip stereo annulus sensors

Hunter, R. F.; Abidi, S. H.; Affolder, A. A.; Böhm, J.; Botte, J.; Ciungu, B. M.; Dette, K.; Doležal, Z.; Escobar, C.; Fadeyev, V.; Fernández-Tejero, J.; Argos, Carlos García; Gillberg, D.; Hara, K.; Jakobs, K.; Keller, J.; Kodyš, P.; Koffas, T.; Kotek, Z.; Kroll, J.; Lacasta, C.; Latoňová, Věra; Loenker, J.; Madaffari, D.; Mikeštíková, M.; Miñano, M.; Ng, Sam Yanwing; Orr, R. S.; Parzefall, U.; Rodriguez, D. Rodriguez; Soldevila, U.; Šťastný, J.; Stegler, M.; Suzuki, J.; Teuscher, R. J.; Unno, Y.; Wada, S.; Wiehe, Moritz; Wiik-Fuchs, L. A. M.; Wizemann, F.; Zahradnik, V.

doi:10.1016/j.nima.2018.08.031

Cited by 6 publications

(5 citation statements)

References 12 publications

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“…Basic mechanical and electrical tests will be carried out for every sensor, while more detailed measurements will be done on a few samples per batch [1][2][3][4], shown here for the last prototype generations before pre-production as an example.…”

Section: Electrical Measurements -Verification Of Sensor Quality Contmentioning

confidence: 99%

Initial tests of large format sensors for the ATLAS ITk strip tracker

Klein

Hommels

Fadeyev

et al. 2021

Nuclear Instruments and Methods in Physics Research Section A:

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Using high-detail imaging the sensor surface is inspected with regards to chips, cracks, or other irregularities. The full surface of the sensor is captured with <2 µm/px resolution by an automated camera setup and stored for future reference. ITk Strip Sensors ITk Strip Sensors are single-sided n +-in-p sensors with square shape in the barrel region and wedge shape with curved edges at constant radius in the end-cap. The strip length of sensors in the inner barrel layer is half the length of outer layer sensors. For end-cap sensors there are six different layouts with radial strips. Top metal layer strips are AC-coupled to the strip implants, which have p-stop traces running in between along the full length for strip isolation. The top metal layer is passivated with openings for probing and wirebonding. Multiple iterations of prototype sensors for extensive testing have been manufactured by Hamamatsu Photonics.

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Section: Electrical Measurements -Verification Of Sensor Quality Contmentioning

confidence: 99%

Initial tests of large format sensors for the ATLAS ITk strip tracker

Klein

Hommels

Fadeyev

et al. 2021

Nuclear Instruments and Methods in Physics Research Section A:

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“…More detailed information on all Sensor QC tests can be found in the ITk Technical Design Report [2] and results for various prototypes have been published in [3,4,5].…”

Section: Sensor Quality Controlmentioning

confidence: 99%

“…The top sensor layer is passivated with openings for probing and wirebonding. Multiple iterations of prototype sensors for extensive testing have been manufactured by Hamamatsu Photonics [3,4,5], a picture of the corner of one is shown in Fig. 1…”

Section: Introduction: the Atlas Inner Tracker Strip Detectormentioning

confidence: 99%

Quality Control for ATLAS Inner Tracker Strip Sensor Production

Klein¹

2019

Proceedings of the 27th International Workshop on Vertex Detectors — PoS(VERTEX2018)

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With the upgrade of the LHC to the High-Luminosity LHC (HL-LHC), scheduled to be installed in 2024, the Inner Detector will be replaced with the new all-silicon ATLAS Inner Tracker (ITk) to maintain tracking performance in this high-occupancy environment and to cope with the increase of approximately a factor of ten in the integrated radiation dose. The outer four layers in the barrel and six disks in the endcap region will host strip modules, built with single-sided strip sensors and glued-on hybrids carrying the front-end electronics necessary for readout.The strip sensors are manufactured as n-in-p strip sensors from high-resistivity silicon, which allow operation even after fluences expected towards the end of the proposed lifetime of the HL-LHC. Prototypes of different sensor designs have been extensively tested electrically as well as in testbeam setups, yielding generally good results. Since pre-production is scheduled to start at the end of 2019, it is necessary to have a quality control (QC) procedure for strip sensors to confirm that manufactured sensors comply with specifications necessary for operation in the HL-LHC, ranging from generic electric properties to reliability of long-term operation. An overview over the QC procedure and its results will be given as well as details about the ongoing challenges.

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“…Left: Interstrip resistance evolution with irradiation with protons on different sensor prototypes at a depletion voltage of 400 V[7]. Right: Comparison of threshold scans of differently irradiated module prototypes[2].…”

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confidence: 99%

ITk Strip Module Design and Performance

Sykora

2019

Proceedings of the 27th International Workshop on Vertex Detectors — PoS(VERTEX2018)

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The all-silicon ATLAS ITk Detector, vertexing and tracking device for the High-Luminosity LHC project, should operate at an ultimate peak instantaneous luminosity up to 7.5 × 10 34 cm −2 s −1 corresponding to approximately 200 inelastic proton-proton interactions per beam crossing. The ITk Strip Detector will consist of four barrel layers and six disks in a forward region on each side of the barrel. They will be composed of individual structures called staves and petals, whose production will require almost 18,000 single-sided strip modules of 8 different designs with the hybrid circuits carrying the front-end microelectronics ASICs glued to the sensor surface. The sensing elements are high resistivity n-in-p silicon strips capable of withstanding fluences up to 1.2×10 15 n eq /cm 2. Both irradiated and non-irradiated prototypes of strip modules undergo testing procedures including test beam campaigns supplemented by laser and beta source tests to check if they meet the design requirements of the detector.

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First bulk and surface results for the ATLAS ITk Strip stereo annulus sensors

Cited by 6 publications

References 12 publications

Initial tests of large format sensors for the ATLAS ITk strip tracker

Initial tests of large format sensors for the ATLAS ITk strip tracker

Quality Control for ATLAS Inner Tracker Strip Sensor Production

ITk Strip Module Design and Performance

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