We are developing a multi-anode sawtooth silicon drift detector (MSSDD) with an anode pitch of 250 m for one-dimensional position-sensitive detection of low-energy X-rays down to 200 eV. The detector is intended to be used in X-ray diffraction analysis. In this paper, we present new results of X-ray spectroscopy measurements with detectors fabricated on neutron transmutation doped (NTD) wafers with a thickness of 290 m. Using an MSSDD with an anode pitch of 250 m and having p + strips on both

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... des, we have measured an energy resolution of 191-eV full-width half-maximum (FWHM) per anode pixel for the 5.89 keV line of 55 Fe at 213 K. At room temperature the energy resolution is 375 eV FWHM. Split events are almost completely eliminated due to the sawtooth-shaped p + strips. Index Terms-Charge sharing, multi-anode linear drift detectors, sawtooth design, X-ray spectroscopy.