The experimental system JUSO at the University of Osnabrück (Figure 2.2) is an UHV system with a base pressure in the low mbar range. Primary ions are extracted from a plasma ion source and mass analyzed by a 90 sector field magnet. With an electric deflection system in front of the analyzing magnet the primary beam can be pulsed to allow time-of-flight (TOF) measurements. The scattering surface is mounted on a three axis manipulator equipped with electron beam heating. A thermocouple is used for temperature control. Downstream from the target, a TOF tube is mounted at a fixed scattering angle of 10. Scattered ions are separated from scattered neutral particles by a postacceleration stage. Two stacked microsphere plates (MSP)  are used as the detector. The angle aperture for detection is 1.2. Neutral primary particles are produced by neutralization of the primary ion beam in a gas cell, placed between the sector magnet and the target chamber.
March 2001 - Martin Wieser, Physikalisches Institut, University of Berne, Switzerland