Moderator or core structure; Selection of materials for use as moderator

Introduced: September 1968

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

Child Classifications

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G21C 5/02 Details IPC+CPC Available in IPC and CPC
G21C 5/12 characterised by composition, e.g. the moderator containing additional substances which ensure improved heat resistance of the moderator +2 CPC IPC+CPC Available in IPC and CPC
G21C 5/14 characterised by shape IPC+CPC Available in IPC and CPC
G21C 5/18 characterised by the provision of more than one active zone IPC+CPC Available in IPC and CPC