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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...
Fully depleted DEPFET active pixel sensors designed for ILC vertex detector were tested at CERN SPS using beams of pions and electrons with energies between 40 and 120 GeV. The sensors tested were 450 μm thick prototypes with pixel size between 20 and 32 μm. The paper presents a brief overview of measurement and analysis, followed by a selection of results focused on detailed in-pixel variation of...
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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