XENON TRANSIENT TESTS. CORE I, SEED 2. Section 1. Test Results T-612081

A test was conducted to determine if sufficient excess reactivity exists in the core to override a peak xenon transient, and to obtain data for rod worth calculations. After completlon of 224.7 EFPH of plant operation with Core 1, seed 2 (5053.9 EFPH total Core I operation), there was sufficient reactivity to override the peak xenon transient imposed by a rapid station shutdown from an avernge reactor power level of 105.24%. Data on rod worth and other test results are included. (J.R.D.