Transmission nuclear resonance fluorescence measurements of 238U in thick targets

Autor: Cody M. Wilson, Bernhard Ludewigt, B. Quiter, Steve Korbly, Vladimir Mozin
Rok vydání: 2011
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 269:1130-1139
ISSN: 0168-583X
DOI: 10.1016/j.nimb.2011.02.081
Popis: Transmission nuclear resonance fluorescence measurements were made on targets consisting of Pb and depleted U with total areal densities near 86 g/cm2. The 238U content n the targets varied from 0 to 8.5percent (atom fraction). The experiment demonstrates the capability of using transmission measurements as a non-destructive technique to identify and quantify the presence of an isotope in samples with thicknesses comparable to he average thickness of a nuclear fuel assembly. The experimental data also appear to demonstrate the process of notch refilling with a predictable intensity. Comparison of measured spectra to previous backscatter 238U measurements indicates general agreement in observed excited states. Two new 238U excited states and possibly a third state have also been observed.
Databáze: OpenAIRE