| Title |
Acceleration of Polarized Deuteron Beams with RIBF Cyclotrons |
| Authors |
- N. Sakamoto, N. Fukunishi, M. Kase, K. Suda
RIKEN Nishina Center, Wako, Japan
- K. Sekiguchi
Tohoku University, Graduate School of Science, Sendai, Japan
|
| Abstract |
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), 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.
|
| Paper |
download TUB04.PDF [1.643 MB / 4 pages] |
| Slides |
download TUB04_TALK.PDF [13.581 MB] |
| Conference |
Cyclotrons2016, Zurich, Switzerland |
| Series |
International Conference on Cyclotrons and Their Applications (21st) |
| Proceedings |
Link to full Cyclotrons2016 Proccedings |
| Session |
Recent Projects |
| Date |
13-Sep-16 10:30–12:00 |
| Main Classification |
Cyclotron and FFAG Concepts, New Projects |
| Keywords |
cyclotron, ion, acceleration, extraction, ion-source |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Jan Chrin (PSI, Villigen, Switzerland); Jacobus M. Schippers (PSI, Villigen, Switzerland); Mike Seidel (PSI, Villigen, Switzerland); Volker RW Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-167-0 |
| Published |
January 2017 |
| Copyright |
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