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New Method for a Continuous Determination of the Spin Tune in Storage Rings and Implications for Precision
D Eversmann1, V Hejny2, F Hinder1,2
1III. Physikalisches Institut B, RWTH Aachen University, 52056 Aachen, Germany.
Physical Review Letters
|September 16, 2015
Summary
A novel method precisely measures particle spin tune in accelerators. This technique uses deuteron-carbon scattering asymmetry, offering high precision for accelerator physics and electric dipole moment measurements.
Area of Science:
- Accelerator Physics
- Particle Spin Dynamics
Background:
- The spin tune, crucial for particle accelerators, dictates spin precession frequency.
- Precise control of particle spin motion is vital for experiments like electric dipole moment searches.
Purpose of the Study:
- To introduce and validate a new, high-precision method for determining the spin tune.
Main Methods:
- Utilizing the up-down asymmetry of deuteron-carbon scattering to deduce the spin tune.
- Testing the method at 970 MeV/c in the Cooler Synchrotron COSY.
Main Results:
- Achieved spin tune determination with precision of 10⁻⁸ in 2.6 seconds.
- Attained precision of 1×10⁻¹⁰ over a 100-second accelerator cycle.
Conclusions:
- The developed method is a new precision tool for accelerator physics.
- Enables high-precision control of particle spin motion, essential for advanced measurements.
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