Measurement of Internal Field in Hafnium 177 in Gadolinium

Abstract

<p>An alloy of 1% lutecium in 99% gadolinium was made. The rotations of the angular correlation pattern caused by the hyperfine fields acting on hafnium nuclei were measured for the 208-113 keV and 71-250 keV cascades. Using measured data the internal field acting on hafnium in gadolinium and the g-factor for the 250 keV spin 11/2, second excited state, were determined.</p> <p>The results are as follows: Hint = - (252 ± 14) k0e g11/2 = (.346 ± .087).</p>