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The principal recommendation of each of the Long
Range Plans that have been developed for nuclear science involved the need
for multiple, high-intensity, multi-GeV electron beams that have the high
duty factor necessary for high-rate coincidence experiments. In response
to these recommendations, construction of CEBAF was begun in 1987; it is
now essentially complete. Commissioning activities began at CEBAF in 1994
and the accelerator delivered its first beam to an experimental area last
summer. The accelerator has already delivered 2.1 GeV beams; it is
expected to reach its full 4 GeV design energy during this long range
planning exercise, and soon thereafter it will be providing three,
simultaneous, 100%duty factor electron and polarized electron beams of
unprecedented quality for a broad-ranging program investigating nuclear and
nucleon structure.
The experimental equipment for the three end stations at CEBAF is in the
final stages of assembly. The HMS spectrometer in Hall C has already
achieved its design specifications and the complementary SOS spectrometer
will begin operation shortly. The high resolution spectrometer pair in
Hall A will begin commissioning activities at the end of 1995, and the
CLAS detector in Hall B is scheduled to begin operations in the Fall
of 1996. After years of planning, design, and construction activity, we
are finally in a position to begin the research program that motivated the
tremendous investment that has been made in this facility. 1,479 days of
physics experiments proposed by 513 scientists from 114 institutions and 21
countries are waiting for full operation of CEBAF.