Vme Based Daq in the Experiments at Acculinna

The VME based data acquisition system for the first time was fully tested in the recent experiment [1] with the 3 H( 8 He,p) 10 He reaction on the ACCULINNA fragment separator [2]. This DAQ allowed us to combine in the same experiment several types of detectors: multiwire proportional chambers, silicon detectors, CsI detectors and stilbene detectors. The DAQ system includes a RIO-3 processor connected with CAMAC crate via GTB resources, TRIVA-5 master trigger, standard VME units ADC, TDC, QDC (about 250 parameters in total) and various software (Multi Branch System – MBS version 5.0, based on CERN ROOT Go4 version 4.4.3 and real time OS LynxOS version 3.3.1). The new DAQ is faster and more flexible than the old system based on CAMAC and provides possibility to use in the future new VME modules (for instance digitizers).