The count rate at time 1 is 55 cps on the neutron monitoring instrumentation. Positive reactivity is added, 300 pcm, from the withdrawal of the control rods. Calculate the final count rate given that the initial reactivity was -950 pcm.
Calculate the equilibrium135I concentration and the equilibrium135Xe for 3.0 w/o enriched fuel in a reactor that operates with a thermal neutron flux of 1 x 1013/(cm2*s). Use the value of Σfcalculated in Written Assignment 5, question 2. How do these values affect the thermal reproduction factor calculated in Written Assignment 5, in percent change?