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A silicon avalanche photodetector with a low breakdown voltage of is demonstrated by narrowing down the intrinsic layer width of interdigitated p-i-n junctions to . It reaches the physical limit of avalanche breakdown in which the performance degradation caused by the Zener tunneling process is negligible. Dark current at ...
Since two years, the FACT telescope is operating on the Canary Island of La Palma. Apart from its purpose to serve as a monitoring facility for the brightest TeV blazars, it was built as a major step to establish solid state photon counters as detectors in Cherenkov astronomy. The camera of the First G-APD Cherenkov Telesope comprises 1440 Geiger-mode avalanche photo diodes (G-APD), equipped with...
The energy storage system(ESS) for a DC 1500V electrified railway was developed. The ESS was installed on the track of Daejeon HRT in 2010. When the ESS is on/off, the saved energy rate is obtained. This paper presents the verification tests about energy saved by the ESS.
This paper presents the results of an experiment examining the percentage of current that returns on adjacent wires or through a surrounding cable shield rather than through a shared conducting chassis. Simulation and measurement data are compared from 1 kHz - 1 MHz for seven common cable configurations. The phenomenon is important to understand, because minimizing the return current path is vital...
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