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SLAC-PUB—4472
DE88 004388
THE STATUS OF THE SLC*
Ronald D. Ruth
Stanford Linear Accelerator Center
Stanford University, Stanford, California, tty SOS
1. INTRODUCTION
On October 10, 1987, the SLC ceased commissioning activities to move the Mark II
detector into the beam line for the spring physics run. The planned shutdown is for a
period of 13 weeks. In this paper, the various subsystems and their status as of October
10, 1687 are briefly discussed. For a more extensive but not as up-to-date review, the
reader is referred to Reis. 1 and 2.
In Fig. 1, you see a schematic layout of the SLC. Before beginning the discussion of
the subsystems, it is useful to trace the e+e~ beams through the SLC. At the beginning,
two 20 cm long bunchee are emitted from a thermionic gun and accelerated to 160 KeV.
These bunchee are compressed in two stages to an rms bunch length of 2 mm each and
then accelerated in a linear accelerator at 2,8 GBs to 200 MeV. At this point, the electrons
join a positron bunch which was created on the previous pulse. All three bunches are then
accelerated to 1.2 GeV,
At the 1.2 GeV point, a D.C. magnet deflects the election bunches north into the north
damping ring while the positrons are deflected south into the south damping ring. After
a storage time longer than about 5.5 msec, the low emittance positron bunch is extracted
from the south damping ring and re-injected into the linac. About 60 nsec later, the first
low emittance electron bunch is extracted and 60 nsec after that the fins) tow emittance
electron bunch is extracted.
The positron bunch and the Gist electron bunch are accelerated in the linac up to 51
GeV and separated at the end of the linac where the electron bunch travels in the north
arc and the positron bunch travels in the south arc. After transport in the arcs, they are
by tM Dtputtaul of Efctffy, coiUVt DE — A COS — 7GSFQ0&11.
Invited talk presented at the 1CFA Seminar on Future Perspectives
in High Energy Physics, Upton, New York, October 5-10,1087
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Ruth, R. D. The status of the SLC, article, November 1, 1987; Menlo Park, California. (https://digital.library.unt.edu/ark:/67531/metadc1089488/m1/1/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.