Control of nuclear reaction

Introduced: September 1968

Of 9 combined children, 8 exist in both systems.

1 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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G21C 7/005 CPC only CPC only
G21C 7/02 by using self-regulating properties of reactor materials, (arrangements that involve temperature stability G21C7/32) IPC+CPC Available in IPC and CPC
G21C 7/06 by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section IPC+CPC Available in IPC and CPC
G21C 7/26 by displacement of the moderator or parts thereof IPC+CPC Available in IPC and CPC
G21C 7/28 by displacement of the reflector or parts thereof IPC+CPC Available in IPC and CPC
G21C 7/30 by displacement of the reactor fuel or fuel elements IPC+CPC Available in IPC and CPC
G21C 7/32 by varying flow of coolant through the core IPC+CPC Available in IPC and CPC
G21C 7/34 by utilisation of a primary neutron source IPC+CPC Available in IPC and CPC
G21C 7/36 Control circuits IPC+CPC Available in IPC and CPC