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Hyperpolarized Xenon for NMR and MRI Applications
Published on: September 6, 2012
First spin flipping of a stored spin-1 polarized beam
V S Morozov1, Z B Etienne, M C Kandes
1Spin Physics Center, University of Michigan, Ann Arbor, Michigan 48109-1120, USA.
Physical Review Letters
|December 20, 2003
Summary
Researchers achieved a 94.2% spin-flip efficiency for a deuteron beam using an rf solenoid. This study also observed unique behavior in the spin-1 tensor polarization of deuterons.
Area of Science:
- Nuclear Physics
- Particle Physics
- Beam Physics
Background:
- Spin flipping is crucial for particle accelerator experiments.
- Understanding deuteron polarization is key for nuclear structure studies.
Purpose of the Study:
- To investigate spin flipping of a deuteron beam using radio frequency (rf) resonance.
- To measure the efficiency of vector spin-flip and analyze tensor polarization behavior.
Main Methods:
- Stored a 270 MeV vertically polarized deuteron beam in the Indiana University Cyclotron Facility Cooler Ring.
- Adiabatically swept the frequency of an rf solenoid through an rf-induced spin resonance.
- Optimized resonance crossing rate and solenoid voltage.
Main Results:
- Achieved a vector spin-flip efficiency of 94.2% +/- 0.3%.
- Observed significant and striking behavior in the spin-1 tensor polarization.
Conclusions:
- The rf solenoid method is highly efficient for deuteron spin flipping.
- Further investigation into the observed tensor polarization phenomena is warranted.
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