恒定磁场产生器,位于该磁性扫描器的近端处,在该射束路径之中产生磁场,用于减轻零磁场效应;
A set of entrance magnets are positioned about an entrance of the scanner and generate a constant entrance magnetic field across the path of the ion beam.
恒定磁场产生器,位于该磁性扫描器的近端处,在该射束路径之中产生磁场,用于减轻零磁场效应;
A set of entrance magnets are positioned about an entrance of the scanner and generate a constant entrance magnetic field across the path of the ion beam.
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