First measurements with the neutron decay spectrometer a SPECT S. Baeßler, F. Ayala Guardia, M. Borg, F. Glück, W. Heil, G. Konrad, I. Konorov, R. Muñoz Horta, G. Petzoldt, D. Rich et al. (4 more) Eur. Phys. J. A, 38 1 (2008) 17-26 Published online: 21 October 2008 DOI: 10.1140/epja/i2008-10660-0