[SLAC] [SLAC Pubs and Reports]
Recent Luminosity Improvements at the SLC
The luminosity of the SLAC Linear Collider (SLC) has been increased by
more than a factor of three during the 1997-98 run. Improved alignment
and emittance tuning techniques throughout the accelerator resulted in
minimal emittance growth from the damping rings to the final focus. In
particular, a revised strategy for wakefield cancellation using
precision beam size measurements at the entrance of the final focus
proved effective for optimizing emittance. The final focus lattice was
modified to provide stronger demagnification near the interaction
point and to remove residual higher-order aberrations. Beam sizes as
small as 1.5 by 0.65 microns were achieved at full beam intensity of 4
1010 particles per pulse. With these parameters, the mutual
focusing of the beams in collision becomes significant, resulting in a
further increase in the luminosity. Recorded SLD event rates confirmed
the theoretical calculations of the disruption enhancement which was
typically 50 to 100%.
Not available for this document.
Full bibliographic data for this document, including its complete author list,
is (or soon will be) available from SLAC's
Please report problems with this file to
The SLAC preprint inventory is provided by the
SLAC Technical Publications Department.
Page generated 04 Apr 2001 @ 15:08 PDT by htmlme.pl