Surface magnetic relaxation rates in spin-polarized hydrogen

The short-wavelength surface contributions to the magnetic relaxation times ($T_1$ and $T_2$) are calculated for a dilute H↓ gas, in the classical, low-temperature regime. Both surface rates are highly anisotropic with respect to the direction of the stabilizing field. Of experimental interest is the potentially long $T_1$ in samples with most of the surface area oriented perpendicular to the stabilizing field.