Abstract

Recently semiconductor particle detectors, operational at low temperatures (4 K), have been incorporated in the low temperature nuclear orientation apparatus at ISOLDE-CERN. First test experiments with standard room temperature preamplifier components revealed a resolution of 4 keV at a 160 keV conversion electron line. This technical development makes it possible to study the anisotropic emission of α- and β-particles, conversion electrons and X-rays from oriented nuclei at the nuclear orientation facility at ISOLDE in addition to the standard γ-detection. Furthermore, we discovered that at 4 K the Si detectors are automatically fully depleted.

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