The E-line is a new beam line that is presently being
that is used strictly for accelerator diagnostics. The beam line makes use of the hard-bend radiation from a
dipole between the D and F beam lines. There is no experimental station associated with this beam line which
is located entirely in the accelerator shielding area. The beam from this dipole is apertured horizontally to
two beams. The Northern portion of the beam is used to determine the vertical emittance of the positrons
and the Southern section for determining the horizontal emittance of the positrons.
FWHM (horizontal) = 4.02mm, FWHM (vertical) = 0.867mm