7–12 May 2023
Venice, Italy
Europe/Zurich timezone

Development of He2+ 10GHz ECR Ion Source for astatine generation accelerator

SUPM076
7 May 2023, 14:00
4h
Sala Mosaici 2

Sala Mosaici 2

Poster Presentation Student Poster Session

Speaker

Sosuke Kikuchi (Research Laboratory for Nuclear Research)

Description

Tokyo Institute of Technology is planning a linac facility to produce 211 astatine, an isotope for αemitter cancer therapy. To produce astatine, we aim to bombard a bismuth target with helium ion beam of sufficient intensity at 28 MeV. Unlike a cyclotron, this facility will be able to accelerate a milliampere class high intensity helium ion beam. In addition, the subsequent accelerator system can be made compact by providing fully stripped helium ions. For this purpose, the ECR ion source is best suited. The multiply charged ions are generated by resonant absorption of microwaves by electrons orbiting in a magnetic field and are capable of supplying high-intensity beams. The ECR ion source will use an RF frequency of 10 GHz, and a suitable magnetic field distribution will be designed to confine the plasma by a composite magnetic field consisting of a mirror field using two solenoid coils and a magnetic field generated by a sextupole magnet to increase the charge states of the ions in the chamber. The final goal is to extract He2+ at 15 mA. In this presentation, the design and magnetic field distribution are reported.

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Primary author

Sosuke Kikuchi (Research Laboratory for Nuclear Research)

Co-authors

Daisuke Nagae (RIKEN Nishina Center) Noriyosu Hayashizaki (Research Laboratory for Nuclear Research)

Presentation materials

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