# 17th International Conference on Ion Sources

15-20 October 2017
CERN
Europe/Zurich timezone

## Low Field Experiments with 18 GHz RF Power of the RAON ECR Ion Source

16 Oct 2017, 16:30
2h 30m
CERN

#### CERN

Centre international de Conférence Genève (CICG). http://www.cicg.ch/
Poster presentation Production of highly charged ion beams

### Speaker

Dr Yonghwan Kim (Institute for Basic Science)

### Description

RAON fully superconducting ECRIS which plasma chamber volume of 10 liters is adapted and uses a 28 GHz MW power as a main power source and an 18 GHz MW power as a secondary power source. We characterized our ion source at a relatively low magnetic field just with an 18 GHz MW power. A reference O$^{7+}$ beam was monitored with the experimental parameters such as MW power, vacuum pressure, and magnetic field profile. Under some conditions, the beam current showed unstable behavior due to a plasma instability. We verified the reason of that instability and verify the characteristics of our ECRIS.

### Primary authors

Dr Yonghwan Kim (Institute for Basic Science) Mr Jeongil Heo (Institute for Basic Science) Dr Ishiyama Hironobu (Institute for Basic Science)