On insertion of a certain positive reactivity into a critical reactor (fueled with ({ }^{235} mathrm{U}) ),

Question:

On insertion of a certain positive reactivity into a critical reactor (fueled with ${ }^{235} \mathrm{U}$ ), power was found to double every $600 \mathrm{~s}$. Find the associated reactor period and hence the amount of reactivity added. Assume neutron generation time to be $1 \mathrm{~ms}$ and use the delayed neutron data for ${ }^{235} \mathrm{U}$ given in Table 10.6.

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