A polarized atomic beam source was developed for the polarized internal
storage-cell gas target at the magnet spectrometer ANKE of COSY-J\"ulich. The
intensities of the beams injected into the storage cell, measured with a
compression tube, are 7.5⋅1016 hydrogen atoms/s (two hyperfine
states) and 3.9⋅1016 deuterium atoms/s (three hyperfine states). For
the hydrogen beam the achieved vector polarizations are pz≈±0.92. For the deuterium beam, the obtained combinations of vector
and tensor (pzz) polarizations are pz≈±0.90 (with a
constant pzz≈+0.86), and pzz=+0.90 or pzz=−1.71 (both with vanishing pz). The paper includes a detailed
technical description of the apparatus and of the investigations performed
during the development.Comment: 18 pages, 26 figures, 4 table