The NA62 GigaTracKer: a low mass high intensity beam 4D tracker with 65 ps time resolution on tracks

Rinella, G. Aglieri; Feito, D. Alvarez; Arcidiacono, R.; Biino, C.; Bonacini, S.; Ceccucci, A.; Chiozzi, S.; Gil, Eduardo Cortina; Ramusino, A. Cotta; Danielsson, H. O.; Degrange, J.; Fiorini, M.; Federici, L.; Gamberini, E.; Gianoli, A.; Kapłon, J.; Kleimenova, A.; Malaguti, R.; Mapelli, A.; Marchetto, F.; Albarrán, E. Martín; Migliore, E.; Minucci, E.; Morel, Michel; Noel, J.P.; Noy, M.; Nüessle, G.; Perktold, L.; Perrin-Terrin, M.; Petagna, P.; Petrucci, F.; Poltorak, K.; Romagnoli, Giulia; Ruggiero, G.; Velghe, B.; Wahl, H.

doi:10.1088/1748-0221/14/07/p07010

Cited by 20 publications

(21 citation statements)

References 16 publications

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“…Although an unprecedented single-hit timing ∼ 130 ps resolution, able to compete with those of scintillating devices, was achieved by the NA62 collaboration with standard Si-pixel sensors [45,46], this should be considered as a bound performance achievable with conventional planar Si technology. The geometrical layout and technology currently adopted for Si-sensors, in fact, are the limiting factors to obtain better performances for Si-pixel sensors and, most likely, to reach these resolutions for SiMS detectors [47,48].…”

Section: Strip-lengthmentioning

confidence: 99%

Advantages and Requirements in Time Resolving Tracking for Astroparticle Experiments in Space

et al. 2021

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A large-area, solid-state detector with single-hit precision timing measurement will enable several breakthrough experimental advances for the direct measurement of particles in space. Silicon microstrip detectors are the most promising candidate technology to instrument the large areas of the next-generation astroparticle space borne detectors that could meet the limitations on power consumption required by operations in space. We overview the novel experimental opportunities that could be enabled by the introduction of the timing measurement, concurrent with the accurate spatial and charge measurement, in Silicon microstrip tracking detectors, and we discuss the technological solutions and their readiness to enable the operations of large-area Silicon microstrip timing detectors in space.

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Section: Strip-lengthmentioning

confidence: 99%

Advantages and Requirements in Time Resolving Tracking for Astroparticle Experiments in Space

et al. 2021

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“…KTAG inefficiencies come mainly from the readout. GTK inefficiencies arise from geometric acceptance and identified readout malfunctioning (5%) and from the detector (3%) [25]. The GTK reconstruction efficiency is due to the conditions applied to identify a track of good quality.…”

Section: Jhep11(2020)042mentioning

confidence: 99%

An investigation of the very rare $$ {K}^{+}\to {\pi}^{+}\nu \overline{\nu} $$ decay

Gil¹,

Kleimenova²,

Minucci³

et al. 2020

J. High Energ. Phys.

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The NA62 experiment reports an investigation of the $$ {K}^{+}\to {\pi}^{+}\nu \overline{\nu} $$ K + → π + ν ν ¯ mode from a sample of K+ decays collected in 2017 at the CERN SPS. The experiment has achieved a single event sensitivity of (0.389 ± 0.024) × 10−10, corresponding to 2.2 events assuming the Standard Model branching ratio of (8.4 ± 1.0) × 10−11. Two signal candidates are observed with an expected background of 1.5 events. Combined with the result of a similar analysis conducted by NA62 on a smaller data set recorded in 2016, the collaboration now reports an upper limit of 1.78 × 10−10 for the $$ {K}^{+}\to {\pi}^{+}\nu \overline{\nu} $$ K + → π + ν ν ¯ branching ratio at 90% CL. This, together with the corresponding 68% CL measurement of ($$ {0.48}_{-0.48}^{+0.72} $$ 0.48 − 0.48 + 0.72 ) × 10−10, are currently the most precise results worldwide, and are able to constrain some New Physics models that predict large enhancements still allowed by previous measurements.

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“…The resolution found for these two sensors is still significantly higher compared to resolutions found for similar planar sensors. For a planar 200 μm sensor a resolution of 127.1 ps (including ASIC contributions) is reported previously [17]. This may indicate that the time resolution of the characterised sensors is better, and that currently we are limited by the pixel-to-pixel variations in the ASIC which dominates the fluctuations on the time resolution.…”

Section: Time Resolution Studiesmentioning

confidence: 61%

Charge and temporal characterisation of silicon sensors using a two-photon absorption laser

Geertsema,

Akiba,

van Beuzekom

et al. 2021

Preprint

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First measurements are presented from a newly commissioned two-photon absorption (TPA) setup at Nikhef. The characterisation of the various components of the system is discussed. Two planar silicon sensors, one being electron collecting and one hole collecting, are characterised with detailed measurements of the charge collection and time resolution. The TPA spot is determined to have a radius of 0.975(11) µm and length of 23.8 µm in silicon. The trigger time resolution of the system is shown to be maximally 30.4 ps. For both sensors, uniform charge collection is observed over the pixels, and the pixel side metallisation is imaged directly using the TPA technique. The best time resolution for a single pixel is found to be 600 ps and 560 ps for the electron and hole collecting sensors respectively, and is dominated by ASIC contributions. Further scans at different depths in the sensor and positions within the pixels have been performed and show a uniform response. It is concluded that the TPA setup is a powerful tool to investigate the charge collection and temporal properties of silicon sensors.

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The NA62 GigaTracKer: a low mass high intensity beam 4D tracker with 65 ps time resolution on tracks

Cited by 20 publications

References 16 publications

Advantages and Requirements in Time Resolving Tracking for Astroparticle Experiments in Space

Advantages and Requirements in Time Resolving Tracking for Astroparticle Experiments in Space

An investigation of the very rare $$ {K}^{+}\to {\pi}^{+}\nu \overline{\nu} $$ decay

Charge and temporal characterisation of silicon sensors using a two-photon absorption laser

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