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The future Belle II experiment will employ a computer-farm based data reduction system for the readout of its innermost detector, a DEPFET-technology based silicon detector with pixel readout. A large fraction of the background hits can be rejected by defining a set of regions of interest (ROIs) on the pixel detector sensors (PXD) and then recording just the data from the pixels inside the ROI. The...
We present a computer-farm based data reduction system for the pixel detector of the future Belle II experiment. Belle II is a major upgrade of the Belle detector that is currently ongoing in KEK (Tsukuba, Japan). Belle II will collect data from SuperKEKB, an asymmetric e+ e− collider whose target luminosity (8 × 1035 Hz/cm2) is a factor 40 larger than the present world record currently held by KEKB...
The DEPFET is a new type of active pixel particle detector. A MOSFET is integrated in each pixel providing the first amplification stage of the readout electronics. Excellent noise parameters are obtained with this layout. The DEPFET sensor will be integrated as an inner detector in the BELLE II experiment. A flexible measuring system with a wide control cycle range and minimal noise was designed...
A new data acquisition program for personal computers with Windows operating system has been built at Charles University van de Graaff laboratory. It allows fast data acquisition from VME, CAMAC and other PC interface cards using interrupt or polling mode via several types of crate controllers, basic on-line analysis and visualization of acquired data in graphs and histograms. The program is written...
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