Abstract
The tilted-foil method for producing spin-polarized radioactive isotope beams has been studied for the application to nuclear physics and materials science, using the radioactive nucleus 8Li ( \(\ensuremath I^{\pi}=2^+\) , g = 0.82678(9) , \(\ensuremath T_{1/2}=0.838(6)\) s) produced at the Tokai Radioactive Ion Accelerator Complex (TRIAC). We successfully produced polarization in a 8Li beam of \(\ensuremath 7.3\pm0.5\) % using 15 thin polystyrene foils (4.2 \(\ensuremath \mu \mathrm{g/cm}^2\) fabricated especially for this purpose. A systematic study of the nuclear polarization as a function of the number of foils, beam energy, tilt angle and foil material has been performed, confirming the features of the tilted-foil technique experimentally. The contributions made to the nuclear polarization of 8Li nuclei by the atomic states was investigated.
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