In addition, at relatively high energies (E > 15 meV) spin-flip scattering
is allowed on the ortho-hydrogen molecule which adversely affects the rotation angle.
GE180 has also a small amount of [Fe.sub.2][O.sub.3] component, 0.03% by weight that can depolarize the neutron beam by spin-flip scattering
by an unpaired electron.
The center row shows the same peaks for the P[parallel][tau] configuration, while the bottom row shows the subtraction of the P [perpendicular to] [tau] spin-flip scattering
from the P[parallel][tau] spin-flip scattering