Two different structures of extraction system at PKU (1: ECR ion source, 2: Tri-electrode extraction column, 3: Diagnostic chamber). (a) Extraction system without X-ray shielding. (b) Extraction system with X-ray shielding (extraction column inserted into diagnostic chamber).
Measurement results of X-ray emission from the proton ion source with the extraction system outside and inside the diagnostic chamber.
Extraction system and beam stopping of the deuteron ion source.
Neutron dose, gamma-ray dose, and beam intensity vs beam energy for a deuteron ion source.
Neutron and gamma-ray dose per mA vs beam energy for a deuteron ion source.
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