Experiment data report for test RIA-ST (Reactivity Initiated Accident Test Series). [BWR]

Recorded test data are presented for the Reactivity Initiated Accident (RIA) Scoping Test, the preliminary test for RIA Test Series I. This test, conducted at the Power Burst Facility, had the following objectives: (1) determine the applicability of using self-powered neutron detectors calibrated by low power steady state calorimetric measurements to measure fuel rod energy depositions during a power burst; (2) determine the energy deposition failure threshold for unirradiated fuel rods at boiling water reactor hot-startup coolant conditions; (3) determine the sensitivity of the test instrumentation to high radiation exposure during a power burst; and (4) determine the magnitudes of potential pressure pulses resulting from rod failure. The data from Test RIA-ST are graphed in engineering units and are analyzed only to the extent necessary to ensure they are reasonable and consistent. These uninterpreted data are presented for use in the nuclear fuel behavior research field before detailed analysis and interpretation have been completed.