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In modern computers computation is performed by assembling together sets of logic gates made by transistors acting as logic switches. The scaling of transistor dimensions allowed a continuous increase of performance accompanied by an increase of heat production. The latter will represent a road-block for the development of future computing devices. Landauer theorized on the minimum heat production...
The NA62 experiment at the CERN-SPS is designed to study the K + → π+νν ultra-rare decay using a high intensity hadron beam and detecting its decay products. The lowest level (Level-0, L0) trigger processor represents a crucial component in reducing the event rate, estimated to be about 10 MHz for most of the sub-detectors which form the trigger, by a factor 10 with a maximum admitted latency of 1...
A commercial Graphics Processing Unit (GPU) is used to build a fast Level 0 (L0) trigger system for the NA62 experiment at CERN. In particular, the parallel computing power of the GPU is exploited to perform real-time fitting in the Ring Imaging CHerenkov (RICH) detector for the L0 trigger of the NA62 experiment. Direct GPU communication using a FPGA-based board has been used to reduce the data transmission...
A small photocell and a non-linear vibration energy harvester have been used to power a low power wireless transceiver device. The device, a technology demonstrator, is self-powered and works without any battery on board. It is able to transmit at few meters distance data such as the temperature and the power supply voltage values in the 2,4 GHz ISM band every 10 seconds.
The measurement of the space-time structure variations induced by strong cosmic events (supernovae, coalescing binaries of neutron stars, etc.) requires an oscillator with a relative stability of 10-21 on time scales typically ap100 ms. We demonstrate that the Virgo interferometer with a wavelength of 1.064 degm has a laser frequency with an in-loop stability of 1.0 times 10-21 on a 100 ms time scale,...
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