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The Belle II experiment is the major upgrade of the Belle experiment, which verified Kobayashi–Maskawa mechanism to explain the violation of charge and parity symmetry in the Standard Model. The Belle II experiment will focus on a search for physics beyond the standard model with the upgraded high-luminosity electron-positron collider, SuperKEKB at KEK. The readout subsystem of the Belle II data-acquisition...
This study proposes an innovative method to measure the variation of cell leakage current. Extreme cell leakage determines DRAM refresh time (tREF). Although the average leakage current from the test element group (TEG) has been the only index for determining cell leakage, it does not provide the distribution of unit cell leakage. We find that cell leakage distribution can be calculated from the slope...
The Belle II experiment, a new generation B-factory experiment at KEK aiming to search for new physics beyond the standard model, is scheduled to start in 2016. The maximum trigger rate is expected to reach as high as 30 kHz with the raw event size of more than 1MB, and the data acquisition is a big challenge. The Belle II DAQ system is a synchronous system based on a pipelined trigger flow control...
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