The Trigger System of the Experiment DUBTO

V.A. Drozdov, V.M. Grebenyuk, V.I. Lyashenko, V.A. Panyushkin, D.B. Pontecorvo

Joint Institute for Nuclear Research, Dubna, Russia

The trigger system of the experiment DUBTO are described in these article.The DUBTO experiment is mainly devoted to studying multinucleon interactions of low energy pions in light nuclei. The experimental apparatus is based on JINR STREAMER spectrometer equipped with CCD telecameras for recording stereoimages of nuclear events occuring inside the self-shunted streamer chamber.

The trigger system of the experiment is a simple coincidences. The Particularity of this system consists of it is located in radiation field of the fasotron in close proximity of the stream-chamber. This has allowed to shorten time of the start the high-voltage generator on 600 ns that has brought about significant improvement quality tracks.