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PCE
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DIFF Subgroup Additional Only
G01N 2223/081

incident ion beam, e.g. proton

Full Title

Investigating materials by wave or particle radiation > secondary emission > incident ion beam, e.g. proton

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.