1) control member
2) control element
a movable part of a reactor which itself affects reactivity and is used for reactor control
GRM: n. (1,2)
References:
SEE reactor control
SPE coarse control member
SPE coarse control element
SPE control rod
SPE depletion member
SPE fine control member
SPE fine control element
SPE regulating member
SPE regulating element
SPE safety member
SPE safety element
SPE shim member
SPE absorber rod
SPE absorption rod
SPE power rod
SPE shim element

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