First Observation of Kinetic Build-up of Longitudinal Electron Polarization
Journal Article
·
OSTI ID:809005
We report the first measurement of the build-up of longitudinal electron polarization in a storage ring by non-spin-flip emission of synchrotron radiation- Such self polarization can occur in a ring equipped with a solenoidal magnet in a Siberian Snake configuration. Unpolarized electrons of 0.72 GeV were injected into the Amsterdam Pulse Stretcher ring and the degree of longitudinal polarization was measured as a function of time using a Compton laser backscattering polarimeter. The growth of the polarization was described by an asymptotic polarization of 0.13 t 0.03 and a time constant of 89 +/- 23 min, in approximate agreement with a predicted asymptotic polarization of 0.063 and time constant of 107 min.
- 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:
- 809005
- Report Number(s):
- JLAB-PHY-03-08; DOE/ER/40150-2456
- Country of Publication:
- United States
- Language:
- English
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