Detection of photon-induced excitations in 235 U with LaBr 3:Ce scintillating detectors


Journal Article

Excitations in 235U were measured with LaBr3:Ce scintillation detectors using the nuclear resonance fluorescence (NRF) technique. A NRF experiment was performed at the High Intensity γ-ray Source (HIγS) facility using quasi-monochromatic circularly or linearly polarized γ-ray beams. Photons scattered at 90°relative to the incident beam were detected with two different sizes of cylindrical LaBr 3:Ce detectors. Clear NRF peaks at 1733 and 1815 keV corresponding to de-excitations to the ground state and/or low-lying levels in 235U were observed within 77 minutes of beam time even under the high background due to the self-activity of LaBr3:Ce and the radioactive decay of 214Bi nuclei existing in the 235U target. The present study shows a possibility of using LaBr3:Ce detector to perform NRF experiments, promoting many options for inspection of special nuclear materials. © 2012 IEEE.

Full Text

Duke Authors

Cited Authors

  • Omer, M; Negm, H; Zen, H; Hori, T; Kii, T; Masuda, K; Ohgaki, H; Hajima, R; Hayakawa, T; Daito, I; Shizuma, T; Fujiwara, M; Park, SH; Kikuzawa, N; Rusev, G; Tonchev, AP; Wu, YK

Published Date

  • December 1, 2012

Published In

Start / End Page

  • 55 - 58

International Standard Serial Number (ISSN)

  • 1095-7863

Digital Object Identifier (DOI)

  • 10.1109/NSSMIC.2012.6551059

Citation Source

  • Scopus