Picture shows the event distribution in our wire chambers

A Region Layout

LabelDescription
a Target cell feed tube.
b Spin separation sextupole magnets, used to select a polarization state for the target beam.
c Medium field magnet. This magnet induces a hyperfine transition in the atomic beam which reduces the beam intensity but boosts the target polarization by a factor of two.
d The target cell - 25 cm long and 10x10 mm in cross section, it confines the ABS beam and effectively increases the target thickness by a factor of 100.
e Helmholz coils used to align the target polarization in a user-selectable direction.
f The Pintex detector stack.
Last modified: Mon May 13 8:10 PM 1996