1.3k citations · 25.2k across the 315 of their papers we have counts for
23 papers · 1 filter
Neural network-based timewalk correction for the Timepix4 ASIC
David Bacher, Kazu Akiba, Martin van Beuzekom +7
Timewalk corrections of hybrid pixel detectors conventionally employ heuristic fits performed independently in bins of the relevant input variables. This requires both an explicit…
Testbeam characterization of a 3D silicon sensor read out by Timepix4
E. Chatzianagnostou, M. J. Madurai, K. Akiba +15
Testbeam results from a -thick 3D silicon sensor bump-bonded to a Timepix4 ASIC, are presented. The hit detection efficiency, spatial resolution, and timing perfo…
Demonstration of length control for a filter cavity with coherent control sidebands
Naoki Aritomi, Yuhang Zhao, Eleonora Capocasa +22
For broadband quantum noise reduction of gravitational-wave detectors, a frequency-dependent squeezed vacuum field realized using a filter cavity is the most promising technique an…
In situ substrate birefringence characterization in gravitational wave detectors using a heterodyne polarimetry method
Satoshi Tanioka, Terri Pearce, Yuta Michimura +6
High-quality test mass substrates play essential roles in laser interferometric gravitational wave detectors. Inhomogeneous birefringence distribution in test mass substrates, howe…
The LHCb VELO Upgrade Module Construction
K. Akiba, M. Alexander, C. Bertella +84
The LHCb detector has undergone a major upgrade for LHC Run 3. This Upgrade I detector facilitates operation at higher luminosity and utilises full-detector information at the LHC…
Timing resolution performance of Timepix4 bump-bonded assemblies
Riccardo Bolzonella, Jerome Alexandre Alozy, Rafael Ballabriga +15
The timing performance of the Timepix4 application-specific integrated circuit (ASIC) bump-bonded to a thick n-on-p silicon sensor is presented. A picosecond pul…
Radiation Tolerance of Low-Noise Photoreceivers for the LISA Space Mission
P. Colcombet, N. Dinu-Jaeger, C. Inguimbert +16
This study investigates the effects of space environmental radiation on the performance of InGaAs Quadrant Photodiodes (QPDs) and assesses their suitability for the Laser Interfero…
Reconstruction of charged tracks with Timepix4 ASICs
Kazu Akiba, Martin van Beuzekom, Vincent van Beveren +15
The design of a detector system comprised of four silicon sensors bump-bonded to Timepix4 ASICs is described together with its data acquisition system, operational infrastructure,…
Improving the stability of frequency dependent squeezing with bichromatic control of filter cavity length, alignment and incident beam pointing
Yuhang Zhao, Eleonora Capocasa, Marc Eisenmann +21
Frequency dependent squeezing is the main upgrade for achieving broadband quantum noise reduction in upcoming observation runs of gravitational wave detectors. The proper frequency…
Timing performance of the Timepix4 front-end
K. Heijhoff, K. Akiba, R. Ballabriga +7
A characterisation of the Timepix4 pixel front-end with a strong focus on timing performance is presented. Externally generated test pulses were used to probe the per-pixel time-to…
Charge and temporal characterisation of silicon sensors using a two-photon absorption laser
R. Geertsema, K. Akiba, M. van Beuzekom +3
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. T…
Spatial resolution and efficiency of prototype sensors for the LHCb VELO Upgrade
E. Buchanan, K. Akiba, M. van Beuzekom +15
A comprehensive study of the spatial resolution and detection efficiency of sensor prototypes developed for the LHCb VELO upgrade is presented. Data samples were collected at the C…
Timing measurements with a 3D silicon sensor on Timepix3 in a 180 GeV/c hadron beam
K. Heijhoff, K. Akiba, R. Bates +9
Test beam measurements have been carried out with a 3D sensor on a Timepix3 ASIC and the time measurements are presented. The measurements are compared to those of a thin planar se…
Temporal characterisation of silicon sensors on Timepix3 ASICs
Elena Dall'Occo, Kazu Akiba, Martin van Beuzekom +8
The timing performance of silicon sensors bump-bonded to Timepix3 ASICs is investigated, prior to and after different types of irradiation up to $8 \times 10^{15} 1 \mathrm{\,Me\ke…
Timing performance of the LHCb VELO Timepix3 Telescope
K. Heijhoff, K. Akiba, M. van Beuzekom +13
We performed a detailed study of the timing performance of the LHCb VELO Timepix3 Telescope with a 180 GeV/c mixed hadron beam at the CERN SPS. A twofold method was developed to im…
The Upgrade I of LHCb VELO -- towards an intelligent monitoring platform
P. Kopciewicz, T. Szumlak, M. Majewski +63
The Large Hadron Collider beauty (LHCb) detector is designed to detect decays of b- and c- hadrons for the study of CP violation and rare decays. At the end of the LHC Run 2, many…
Identification of particles with Lorentz factor up to with Transition Radiation Detectors based on micro-strip silicon detectors
J. Alozy, N. Belyaev, M. Campbell +39
This work is dedicated to the study of a technique for hadron identification in the TeV momentum range, based on the simultaneous measurement of the energies and of the emission an…
Mapping the material in the LHCb vertex locator using secondary hadronic interactions
M. Alexander, W. Barter, A. Bay +63
Precise knowledge of the location of the material in the LHCb vertex locator (VELO) is essential to reducing background in searches for long-lived exotic particles, and in identify…
Coincidence velocity map imaging using Tpx3Cam, a time stamping optical camera with 1.5 ns timing resolution
Arthur Zhao, Martin van Beuzekom, Bram Bouwens +9
We demonstrate a coincidence velocity map imaging apparatus equipped with a novel time stamping fast optical camera, Tpx3Cam, whose high sensitivity and ns timing resolution allow…
Performance of the LHCb Vertex Locator
LHCb VELO Group, R. Aaij, A. Affolder +101
The Vertex Locator (VELO) is a silicon microstrip detector that surrounds the proton-proton interaction region in the LHCb experiment. The performance of the detector during the fi…
The Timepix Telescope for High Performance Particle Tracking
Kazuyoshi Akiba, Per Arne Ronning, Martin van Beuzekom +32
The Timepix particle tracking telescope has been developed as part of the LHCb VELO Upgrade project, supported by the Medipix Collaboration and the AIDA framework. It is a primary…
Radiation damage in the LHCb Vertex Locator
A. Affolder, K. Akiba, M. Alexander +48
The LHCb Vertex Locator (VELO) is a silicon strip detector designed to reconstruct charged particle trajectories and vertices produced at the LHCb interaction region. During the fi…
Charged Particle Tracking with the Timepix ASIC
Kazuyoshi Akiba, Marina Artuso, Ryan Badman +39
A prototype particle tracking telescope has been constructed using Timepix and Medipix ASIC hybrid pixel assemblies as the six sensing planes. Each telescope plane consisted of one…