MEASUREMENTS OF X-RAYS FROM NE RECOIL IONS WITH A POSITION-SENSITIVE DETECTOR

Measurements of soft X-rays with wavelength 35-47 nm from Ne recoil io ns, excited by 24 MeV Cl ions, are reported obtained with a 2.2 m graz ing incidence spectrometer. A position sensitive channelplate detector with a two-dimensional wedge and strip readout is used instead of a c hanneltron, scanning along the Rowland circle. The perfomance of this position sensitive detector is optimized, wavelength calibration proce dures are worked out and its efficiency is compared with the scanning channeltron. The detection yield and resolution is measured as a funct ion of the angle of the radiation to the detector normal. An increase by a factor of 12 in the detection efficiency over a spectral region i s found for the position sensitive detector compared with a scanning c hanneltron detector.