PS instrumentation studies

1. Decided what magnet to use: 2 m long 30D72 magnet with the maximum field of 2 T.
2. The vaccum chamber design has to be optimized. Current chamber length 1.5 m.
3. Consider symmetric detectors covering the energy range from 3 GeV to 6 GeV.

Detector width (position from the beamline) as a function of the magnetic field:

For the magnetic field of 1.5 T the detector width should be about 30 cm.

Contribution to the position/energy resolution from multiple scattering. The converter is placed 1 m in front of the magnet. B = 1 T.

(the energy resolution of the scintillator counters corresponding to the default design is 12 MeV for 24 counters and 17 MeV for 8 counters).