Design of a Data Acquisition System for Lass
نویسنده
چکیده
LASS is formed of two large magnets (Fig. 2). The first is a superconducting solenoid having a field region approximately 12 ft long with B=25 kG in the beam direction. The incident beam passes through a 1 meter hydrogen target at the upstream end of this solenoid. The secondary particles resulting from an interaction are trapped in helical orbits in the solenoid and their momenta measured by measuring the curvature of these helices. As high energy secondaries with small production angles have little curvature and cannot be measured well in the solenoid,a conventional dipole follows the solenoid to allow measurement of their momenta.
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