The GIBS magnetic spectrometer

The GIBS spectrometer is an experimental setup with a 2-m streamer chamber placed in a magnetic field as the main detector. The chamber provides for t he detection of charged particles emitted from the internal target into the complete solid angle (4 pi geometry). The setup is used to study rare proc esses in a wide range of secondary-particle multiplicities. The spectrometer is described briefly, and its characteristics and the main methodological results concerned with the quality of experimental data are presented.