Main reactivity effects and coefficients

1 January 2000

Characteristic Value
Reactivity change at fuel burnup for 500 eff. days. -0.3%K/K
Sodium void reactivity effect +0.2%K/K
Sodium density coefficient 0
Temperature and power reactivity effect -0.9%K/K
Maximum reactivity margin (with calculation error) 1.9%K/K

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