TY - GEN
T1 - Acceleration of polarized deuteron beams with RIBF cyclotrons
AU - Sakamoto, N.
AU - Fukunishi, N.
AU - Kase, M.
AU - Suda, K.
AU - Sekiguchi, K.
N1 - Publisher Copyright:
Copyright © 2016 CC-BY-3.0 and by the respective authors
PY - 2016
Y1 - 2016
N2 - We have recently performed experiments with polarized deuteron beams at the Radioactive Isotope Beam Factory (RIBF). Tensor- and vector-polarized deuterons were produced using the RIKEN polarized ion source (PIS) [1], which is an atomic-beam-type ion source equipped with an electron cyclotron resonance (ECR) ionizer, and were accelerated to 190 MeV/u, 250 MeV/u, and 300 MeV/u with a cyclotron cascade. To measure the various spin observables, the spin orientation of the deuteron beams was freely directed by using a Wien filter. The advantage of this method is that since the velocity of the deuteron is low the size of a magnet required for the spin rotation is very compact. On the other hand it is crucial to realize strict single-turn extraction for each cyclotron because the cyclotron magnetic field causes precession of the deuteron spin resulting in a deviation between its spin orientation and the beam propagation direction. This paper describes the acceleration of the polarized deuteron beams by the RIBF accelerators and the method to confirm single-turn extraction.
AB - We have recently performed experiments with polarized deuteron beams at the Radioactive Isotope Beam Factory (RIBF). Tensor- and vector-polarized deuterons were produced using the RIKEN polarized ion source (PIS) [1], which is an atomic-beam-type ion source equipped with an electron cyclotron resonance (ECR) ionizer, and were accelerated to 190 MeV/u, 250 MeV/u, and 300 MeV/u with a cyclotron cascade. To measure the various spin observables, the spin orientation of the deuteron beams was freely directed by using a Wien filter. The advantage of this method is that since the velocity of the deuteron is low the size of a magnet required for the spin rotation is very compact. On the other hand it is crucial to realize strict single-turn extraction for each cyclotron because the cyclotron magnetic field causes precession of the deuteron spin resulting in a deviation between its spin orientation and the beam propagation direction. This paper describes the acceleration of the polarized deuteron beams by the RIBF accelerators and the method to confirm single-turn extraction.
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M3 - Conference contribution
AN - SCOPUS:85084984499
T3 - CYC 2016 - Proceedings of the 21st International Conference on Cyclotrons and their Applications
SP - 145
EP - 148
BT - CYC 2016 - Proceedings of the 21st International Conference on Cyclotrons and their Applications
PB - Joint Accelerator Conferences Website (JACoW)
T2 - 21st International Conference on Cyclotrons and their Applications, CYC 2016
Y2 - 11 September 2016 through 16 September 2016
ER -