ACTIVATION-RATE MEASUREMENTS IN THE ZPR-3 MOCKUP CRITICAL EXPERIMENTS Part Ⅱ. Measurement of Poil-activation Rates EBR-Ⅱ Nickel Reflector

摘要

This report is the second in a series that will discuss activation-rate measurements conducted in the ZPR-3 critical facility in mockup experiments designed to simulate various configurations of EBR-II. The primary objective of the reports is to describe these measurements and to present the data in a useful form. This report describes the activation-rate measurements conducted in Assembly 61 of ZPR-3. The study consisted of two experiments. The first experiment was designed to provide activation-rate data for dosimetry purposes, i.e., data for characterizing the irradiation environment in terms of reaction rates, neutron flux and neutron spectrum, and for defining the effects of hetero-geneity within the assembly. The second experiment was designed to provide data from which fast-neutron fission yields of several short- to intermediate-Jived fission products could be established.