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The sensitivity of state-of-the-art superconducting far-infrared detectors is such that astronomical observations at these wavelengths are limited by photon noise from the astronomical source unless a method of restricting the spectral bandpass is employed. One such method is to use a high resolution Fabry-Pérot interferometer (FPI) in conjunction with a lower resolution, post dispersing system, such...
Particle Flow Algorithm (PFA) and highly granular calorimeters provide currently the best jet energy resolution, which is of primary importance for precise physics measurements at future colliders. In the electromagnetic calorimeter, the best granularity and performance can be achieved with the silicon-tungsten (SiW) technology. After years of R&D within the CALICE collaboration this concept is...
In the frame of the INFN experiment REDSOX/REDSOX2 and in collaboration with Fondazione Bruno Kessler (FBK), Trento, we are developing trapezoidal-shaped monolithic arrays of Silicon Drift Detector (SDD) cells for low energy X-ray fluorescence (XRF) experiments. The shape of the individual SDD cell must be carefully selected in order to find the optimal compromise between spectroscopic performance...
Our goal is to provide the scientific community with a large (10cm × 10cm) pixellated detector featuring a large dynamic range (1–105 photons), good spatial resolution (27µm), good Quantum Efficiency (QE) in the low energy range (250eV–1keV), variable readout speed (up to 120 frames/s), i.e. with characteristics compatible with user needs at today's of low-energy Free Electron Lasers (FEL) and synchrotron...
Terahertz reflection imaging with the laser operating in TEM01 mode and large area detector was investigated. Imaging of high spatial resolution targets with up to diffraction limited resolution was demonstrated. Imaging system was also illustrated to be suitable to identify defects in silicon solar cells.
We describe a novel method to measure the relative spectral responsivity of detectors based on a pulsed OPO tunable from 210 nm to 2000 nm. Si and InGaAs photodiodes are compared to a pyro-electric detector as Reference (REF) at each laser pulse from the OPO with a duration of several ns and a repetition rate of 1 kHz based on a beam splitter and single-pulse data acquisition.
We demonstrate THz photon echoes from silicon doped with phosphorus donors. We provide experimental evidence showing that the echo emerges at the predicted angle and that it arrives at our detector at the predicted time. We use this to demonstrate coherent control of the silicon donor states.
We present the first results of the full CMS Silicon Tracker alignment based on several million reconstructed tracks from the cosmic data taken during commissioning runs with the detector in its final position. The all-silicon design of the CMS Tracker poses new challenges in aligning a complex system with 15148 silicon strip and 1440 silicon pixel modules. For optimal track-parameter resolution,...
A Transient Current Technique (TCT) utilizing IR laser with 100 ps pulse width and beam diameter of FWHM=8 ??m was used to evaluate non-irradiated and irradiated p-type silicon micro-strip detectors. The beam was parallel with the surface and perpendicular to the strips (Edge-TCT) so that the electron hole pairs were created at known depth in the detector. Induced current pulses were measured in one...
This paper describes the beam flux monitoring system that has been developed at the Superconducting Cyclotron at INFN-LNS (Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud, Catania, Italy) in order to monitor the beam parameters such as energy, flux, beam profile, for SEE (Single Event Effects) cross-sections determination and DD (Displacement Damage) studies. In order to have an...
We show that silicon waveguides can simultaneously be utilized as focusing device and also as detectors in nonlinear fluorescence imaging. Detection and imaging of Lt20mum erbium particles by using 1550 nm excitation are demonstrated experimentally.
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