Speaker
Description
LECR5 (Lanzhou Electron Cyclotron Resonance ion
source No. 5) is an 18 GHz room temperature ECR
ion source featuring Ø80 mm ID (Internal Diameter)
plasma chamber and high magnetic fields. It has
been successfully constructed at IMP recently and has
been fully commissioned to meet the requirements of
SESRI (Space Environment Simulation and Research
Infrastructure) project. According to the test results,
LECR5 can meet the requirements of SESRI with
sufficient beam intensities within the required the
transverse emittances. As LECR5 is designed to be
optimal for the operation at 18 GHz, we have
managed to explore the source performance at 18
GHz with a maximum microwave power around 2 kW.
Recent source test indicates, LECR5 can produce not
only high intensity ion beams such as 2.12 emA O6+,
121 e¿A of Ar14+, 73 e¿A of Kr23+, 145 e¿A of
Xe27+, but also very high charge state ion beams
such as 22 e¿A of Bi41+. This paper will present the
recent progress with LECR5, especially the intense
ion beam production and the beam quality
investigation.