Study on flexible ion beam transport tube for dose-controllable and body-insertable micro X-ray source

2016 Fiscal Year Final Research Report

• Project/Area Number: 25350545
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Biomedical engineering/Biomaterial science and engineering
• Research Institution: Institute of Physical and Chemical Research
• Principal Investigator: KOJIMA Takao 国立研究開発法人理化学研究所, 仁科加速器研究センター, 専任研究員 (90211896)
• Co-Investigator(Renkei-kenkyūsha): IKEDA Tokihiro 理化学研究所, 仁科加速器研究センター, 専任研究員 (80301745) ; KANAI Yasuyuki 理化学研究所, 原子物理特別研究ユニット, 専任研究員 (00177487)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: イオンガイド / 絶縁体 / キャピラリー / ガイド効果 / 材質依存性 / 放電制御

Outline of Final Research Achievements

Ion beam was injected into a thin straight insulating tube (capillary) of various materials, and the change in ion transmission (tilt angle dependency = guide effect) was measured by tilting the capillary. As a result, we found that a capillary made of soda-lime glass is optimal as an ion guide for low energy multiply charged ions. Therefore, we made a gently curved soda-lime glass capillary, injected the ion beam into the capillary, and measured the guide effect and transport efficiency. It was found that with a curved capillary the ions can be transported (guided) into an angle more than twice as large as in the case of tilting straight capillaries of the same length. The possibility of application as a simple ion deflector has come to light.

Free Research Field

原子分子物理学