Compensation of the Effects of Detector Solenoid on the Vertical Beam Orbit in NLC(LCC-0143)
- SLAC
In this note we consider compensation of the vertical angle at the IP that arises when the NLC beam enters the detector solenoid. While this angle is antisymmetric for e{sup +}e{sup -} collisions and does not affect luminosity, compensating this angle is desirable to guarantee knowledge of polarization at the IP. For the e{sup -}e{sup -} case compensation is necessary also from the luminosity point of view. We show in this note that the most effective compensation can be done locally, with a special dipole coil arrangement incorporated into the detector. It is shown that compensation can be achieved for both e{sup +}e{sup -} and e{sup -}e{sup -} case and that this scheme is compatible with beam size compensation by both the standard method, using skew quadrupoles, and by means of more advantageous method using weak antisolenoids.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 827019
- Report Number(s):
- SLAC-TN-04-044
- Country of Publication:
- United States
- Language:
- English
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