Concept

Smoke detector

Related publications (77)

Physics and application of photon number resolving detectors based on superconducting parallel nanowires

The parallel nanowire detector (PND) is a photon number resolving (PNR) detector that uses spatial multiplexing on a subwavelength scale to provide a single electrical output proportional to the photon number. The basic structure of the PND is the parallel ...

2009

Single-photon detector arrays for time-resolved fluorescence imaging

Marek Gersbach

Time-correlated single photon counting techniques have recently established themselves in numerous fields of research. In particular, for fluorescence lifetime imaging, time-correlated single photon counting is often considered the absolute reference in te ...

EPFL2009

Face tracking in video sequences based on multiple local features and high-light free color information

Sofia Karygianni

This thesis presents an algorithm for face tracking in video sequences. We investigate the application of affine invariant, local features for face tracking under random poses and expressions. In order to capture as much as possible of the facial variabili ...

2009

First LHC beam induced tracks reconstructed in the LHCb VELO☆

Barinjaka Rakotomiaramanana

The Vertex Locator of the LHCb experiment has been used to fully reconstruct beam induced tracks at the LHC. A beam of protons was collided with a beam absorber during the LHC synchronisation test of the anti-clockwise beam on the weekend 22nd-24th August ...

2009

Development and studies of a novel microfabricated radiation hard scintillation particle detector with high spatial resolution

Philippe Renaud, Alessandro Mapelli, Sébastien Jiguet

A novel scintillation detector is being developed with standard microfabrication techniques. It consists of a dense array of scintillating waveguides obtained by filling microfluidic channels with an organic liquid scintillator. Such a microfluidic device ...

2009

Hydrogenated Amorphous Silicon Sensor Deposited on Integrated Circuit for Radiation Detection

Matthieu Despeisse, François Eric Powolny

Radiation detectors based on the deposition of a 10 to 30 μm thick hydrogenated amorphous silicon (a-Si:H) sensor directly on top of integrated circuits have been developed. The performance of this detector technology has been assessed for the first time i ...

2008

A Data-driven Approach to Speech/Non-speech Detection

Hynek Hermansky, Sree Hari Krishnan Parthasarathi

We present a data-driven approach to weighting the temporal context of signal energy to be used in a simple speech/non-speech detector (SND). The optimal weights are obtained using linear discriminant analysis (LDA). Regularization is performed to handle n ...

IDIAP2008

Optimal aperture sizes and positions for EMCD experiments

Cécile Hébert

The signal-to-noise ratio (SNR) in energy-loss magnetic chiral dichroism (EMCD)-the equivalent of X-ray magnetic circular dichroism (XMCD) in the electron microscope-is optimized with respect to the detector shape, size and position. We show that an import ...

Elsevier2008

Low Cost Earth Sensor Based on Oxygen Airglow (AIRES)

Edoardo Charbon, Herbert Shea, Noémy Scheidegger

This project has demonstrated the feasibility of a low-cost Earth sensor based on imaging oxygen airglow, allowing 0.4° accuracy from GEO under any illumination condition. Available Earth Sensor (ES) are based on the measurement of the earth’s infrared rad ...

2008

Mid-Infrared Tunable Resonant Cavity Enhanced Detectors

Niels Quack

Mid-infrared detectors that are sensitive only in a tunable narrow spectral band are presented. They are based on the Resonant Cavity Enhanced Detector (RCED) principle and employing a thin active region using IV-VI narrow gap semiconductor layers. A Fabry ...

2008

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