Operating Results from Spear
نویسندگان
چکیده
The SLAC electron-positron colliding-beam project SPEAR was completed and stable colliding beams were achieved in April, 1972, after a construction period of approximately 20 months. Since that time, an active experimental high-energy physics program has begun in addition to a program of continued studies of accelerator physics. This paper discusses only the accelerator physics results as well as plans to increase the maximum operating energy of the ring. Some operating data have been presented previously. 1 This paper summarizes the operating experience to date. SPEAR is a single ring composed of 36 rectangular zero-gradient bending magnets and 54 quadrupoles as shown schematically in Fig. 1. Two arcs composed of standard modules connect two variable-dispersion, low-beta insertions. The rf system runs on the 40th harmonic of the orbit frequency. In operation,
منابع مشابه
Slq-pub-1215 (a) March 1973 Operating Results from Spear*
Initial operating experience witll the SLAC electronpositron storage ring SPEAR is described. A luminosity of 1.2 x 1031 cm-2 set-I has been achieved and two-beam interaction effects are described. A single-beam coherent instability, which can be suppressed either by control of the ring chromaticity or by feedback, has been observed. Current-dependent bunch lengthening and widening have been ob...
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