DESIGN OF THE NANOGUN-10B ECR ION SOURCE
The design of 10 GHz ECR ion source NANOGUN-10B for the electrostatic accelerator EA-300 is described. The ion source is
based on permanent magnets FeNdB. Remarkable features of the source are as follows: i) original ECR zone, ii) the basic
hexapole and magnetic
structure producing axial field are made by permanent magnets, iii) the microwave port is placed above the plasma chamber,
iv) the microwave
frequency will be variable from 8 to 18 GHz. The outer size of the hot plasma chamber is designed
to be φ 36 mm x 80 mm.
Total weight of the magnetic structure is about 36 kg.
Keywords: ECR ion source, FeNdB permanent magnet, hexapol, axial magnetic field