please answer

do (n/em 's) Ap(%) For A = 2.09x10 5 /s 1.0 x 10 12 0.23 A, = 2.87x 10 5 /s 2.0 x 10 12 0.44 71 =0.0639 3.0 x 10 12 0.63 Yx =0.00237 5.0x1012 1.00 (0.025 eV) =2.65 x10b 1.0 x 1013 1.50 A C 0.083 s 2.8 x 10 b 1.5 0.002 0.062 2. 09 x 10-5/5 2.87 x 10-5/s 1. A highly enriched uranium fuelled, large reactor operating at an average flux level of do = 1012 neutrons/cm's has reached equilibrium xenon. The operator needs to reduce the power to 60% in 6 hours. Find and plot the change in the reactivity worth of xenon (in pem) as a function of time for the following strategies: 1. A step decrease. 2. Continuous linear decrease in 6 hours. Use the data given above notes and v = 2. 42