The 17 m diameter MAGIC telescope aims for gamma-ray astronomy above 15 GeV. The technical concept and status of the detector component developments for the first phase with a classical photomultiplier camera (threshold 30 GeV) will be given. The physics program will be reviewed in a separate contribution.

A possibility to measure CP-violation in B -decays by ATLAS experiment was investigated. With one year of running at luminosity 10 cms with a muon pt trigger threshold of 20 GeV and rapidity coverage |η| < 2.5 of the tracking detector the rate of 1490 events B0d → J/ψ K 0 → μ μ − ππ can be reached.

Cognitive radio concerns primarily with the detection of primary (licensed) users in the radio frequency spectrum. In the case of a primary user is not transmitting in its allocated frequency band, the band is made available to a secondary (unlicensed) user for better spectrum utilization. However, the threshold of detecting a primary user should take into consideration sensing error minimizati...

A novel type X-ray detector, called PILATUS, has been developed at the Paul Scherrer Institut (PSI) in Switzerland during the last decade. PILATUS detectors are two-dimensional hybrid pixel array detectors, which operate in single-photon counting mode. PILATUS detectors feature a very wide dynamic range (1:1,000,000), very short read out time (< 3.0 msec), no readout noise, and very high counti...

The objective of the presented work is to improve the stability of interest point detection under illumination changes. The use of a global threshold is shown to be insufficient and three methods are proposed to enhance a state–of–the–art algorithm: the Harris corner detector. These methods are based on different principles: a local image normalization as preprocessing, a local threshold adapti...

We present a single-shot dual-energy subtraction mammography technique using an energy sensitive photon counting detector. An electronic threshold near the middle of the X-ray spectrum discriminates between high- and low-energy photons, and allows the simultaneous acquisition of high- and low-energy images which can be combined to suppress anatomical clutter. By setting the electronic threshold...

A subthreshold signal may be detected if noise is added to the data. The noisy signal must be strong enough to exceed the threshold at least occasionally; but very strong noise tends to drown out the signal. There is an optimal noise level, called stochastic resonance. We explore the detectability of different signals, using statistical detectability measures. In the simplest setting, the signa...

The near-threshold evolution of electron-impact ionization of hydrogen is revealed with measurements of the angular and energy correlations of the outgoing electrons down to 0.05 eV. The single-, double-, and triple-differential cross sections in the perpendicular plane are measured simultaneously using a dual wedge-and-strip detector on a single-toroidal energy analyzer, avoiding many experime...

Several methods of watermark detection involve computing a v ector from some input media, computing the normalized correlation between that vector and a predeened watermark vector, and comparing the result against a threshold. We show that, if the probability density function of vectors that arise from random, unwatermarked media is a zero-mean, spherical Gaussian, then the probability that suc...

In this paper, we propose a two-stage spectrum sensing (SS) scheme in cognitive radio networks (CRN). First stage consists of multiple antennas (M) based energy detector (ED) with fixed single threshold (MA_ED_FT) and if required, second stage comprised of ED with adaptive double threshold (ADT) is invoked. Numerical results show that proposed scheme optimizes detection performance and outperfo...