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Cryogenic detectors based on iridium–gold phase transition thermometers are being developed for various applications in astroparticle physics, aiming at high energy resolution, low energy threshold and moderate count rates. A microcalorimeter with an energy resolution of 15.5 eV (FWHM) for the 55Mn Kα1 x-ray line for tentative use in an analytical x-ray system (e.g. SEM, TRFA) is presented.
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Höhne et al. (1999) studied this question.
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