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A new-type charged particle spectrograph has been proposed and built up. It combines the property of the small magnet which can analyse the particle momentum with that of the semiconductor detector which has a higher energy resolution. As a result, the particle identification and the analysis of energy spectrum can be obtained simultaneously. In this paper, the design and structure of this spectrograph are described, some experimental results of using it in nuclear reaction studies are given, and its applications and characteristics are discussed. This kind of spectrograph is more simple and facile but possesses rather better performances.

The reactions of Be9(d, p0)Be10(0), Be9(d, p1)Be10(3.368 MeV), Be9(d, t0)Be8(0), Be9(d, α0)Li7(0) and Be9(d, α1) Li7 (0.478 MeV) have been studied at deuteron bombarding energies from 0.1 to 2.5 MeV. The angular distributions of these five groups of outgoing particles have been measured respectively between θL = 10°and 155°at eleven bombarding energies of 0.150, 0.220, 0.401, 0.706, 1.005, 1.301, 1.484, 1.750, 2.000, 2.250 and 2.500 MeV. The excitation functions of the Be9 (d,p0) Be10 reaction have been measured at θL = 135° from Ed = 0.1 to 2.5 MeV, at θL = 95° from Ed = 0.1 to 2.2 MeV and at θL = 112.5° from Ed, = 0.5 to 2.5 MeV, respectively. By use of thicker targets (100-300μg/cm2) and at Ed = 1.2 MeV, the absolute cross sections of the Be9(d, p0)Be10 reaction were measured at θL = 135°and 112.5°; the results obtained are: σ(p0)(θL = 135°)= 1.60 mb/st and σ(p0)(θL = 112.5°)=1.55 mb/st. Thus, the behaviours of the cross sections of all these five groups of outgoing particles have been obtained in this energy range. These experimental results are discussed to some extent.