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A design study of a small-size neutral particle analyzer using a silicon surface barrier detector (SSD) is performed. The SSD is very sensitive to x rays or photons, so that a pair of 45° sector magnets to separate a reionized neutral from x rays and photons will be used for this analyzer. In order to examine the performance, the SSD was applied to measure the species ratio of the prototype neutral beam injector for JT-60. It was confirmed that the energy resolution was 12% at 40 ke V and the linear relation between the incident energy of particles and the pulse height was held over the energy range from 16.7 to 100 keY. The species ratio measured by the SSD was in good agreement with that by the Doppler-shift spectrometer. The SSD has a sufficient capability for the energy analysis of fast neutrals.iNTRODUCTION In order to measure ion temperature and ion energy distribution of plasma, a multichannel charge exchange diagnostic system l -3 is commonly used. In high-power additional heating experiments, the multichannel analyzer measuring a wider range of energy becomes very large, and the installation to the plasma device is restricted from the space problem. A design study of a small-size analyzer with a pair of 45° sector magnets and a silicon surface barrier detector (SSD) is performed. In this system, the bending magnet is used only for separating reionized neutrals from x rays and photons, and the energy analysis by the SSD is carried out. The SSD was made by the Toshiba Corporation, and was calibrated for the energy below 30 keV by the JFT-2 active scattering apparatus. 4 In order to examine the performance for higher energy neutrals, the SSD was applied to measure the species ratio of the prototype neutral beam injector for JT _60. 5 From this experiment, it is confirmed that the SSD has a sufficient capability for a detector of a charge exchange neutral analyzer.Characteristics of the SSD and the results of the species ratio measurement are presented in Sec. I. Section II describes the design study of an analyzer.

Supersymmetric models with broken R-parity induced by lepton number violating terms provide a calculable framework for neutrino masses and mixings. Within models with bilinear R-parity breaking six new physical phases appear which are potential sources of novel CP-violating phenomena compared to the minimal supersymmetric extension of the standard model. We consider CP-violating observables in the decays of the lightest supersymmetric particle in this class of models. We show that: (i) Neutrino physics requires a strong correlation between three different pairs of phases, thus reducing the effective number of new phases to three. (ii) CP-violating phenomena in decays of the lightest supersymmetric particle due to new R-parity breaking phases turn out to be small, once constraints from neutrino physics are taken into account. We demonstrate that this feature does not depend on the nature of the lightest supersymmetric particle.