The North Arc of the SLC as a Spin Rotator

Conference · Sat May 01 04:00:00 EDT 1993

OSTI ID:801721

Limberg, T; Emma, P; Rossmanith, R

The 1992 running cycle of the Stanford Linear Collider (SLC) showed that the orientation of the electron polarization vector at the interaction point was very sensitive to the vertical orbit in the north collider arc. We point out the reason for this sensitivity-the spin tune is equal to the vertical betatron tune. We devise a scheme of closed vertical orbit bumps which provide arbitrary manipulations of the polarization vector at the IP. We have developed an analytical model for the tuning of this ''arc spin rotator'' and have performed a detailed numerical analysis to show its effectiveness. We present experimental results.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 801721
• Report Number(s): CEBAF-PR-93-068; DOE/ER/40150-5053
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
BETATRONS
ELECTRONS
NUMERICAL ANALYSIS
ORIENTATION
POLARIZATION
SPIN
STANFORD LINEAR COLLIDER
TUNING
VECTORS