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Title: Nuclear Resonance Fluorescence Excitations Near 2 MeV in 235U and 239Pu

Abstract

A search for nuclear resonance fluorescence excitations in {sup 235}U and {sup 239}Pu within the energy range of 1.0- to 2.5-MeV was performed using a 4-MeV continuous bremsstrahlung source at the High Voltage Research Laboratory at the Massachusetts Institute of Technology. Measurements utilizing high purity Ge detectors at backward angles identified 9 photopeaks in {sup 235}U and 12 photopeaks in {sup 239}Pu in this energy range. These resonances provide unique signatures that allow the materials to be non-intrusively detected in a variety of environments including fuel cells, waste drums, vehicles and containers. The presence and properties of these states may prove useful in understanding the mechanisms for mixing low-lying collective dipole excitations with other states at low excitations in heavy nuclei.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
943829
Report Number(s):
UCRL-JRNL-227017
TRN: US200902%%435
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review C, vol. 78, no. 4, October 8, 2008, pp. 041601; Journal Volume: 78; Journal Issue: 4
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BREMSSTRAHLUNG; CONTAINERS; DIPOLES; ENERGY RANGE; FUEL CELLS; HEAVY NUCLEI; HIGH-PURITY GE DETECTORS; RESONANCE FLUORESCENCE; WASTES

Citation Formats

Bertozzi, W, Caggiano, J A, Hensley, W K, Johnson, M S, Korbly, S E, Ledoux, R J, McNabb, D P, Norman, E B, Park, W H, and Warren, G A. Nuclear Resonance Fluorescence Excitations Near 2 MeV in 235U and 239Pu. United States: N. p., 2006. Web.
Bertozzi, W, Caggiano, J A, Hensley, W K, Johnson, M S, Korbly, S E, Ledoux, R J, McNabb, D P, Norman, E B, Park, W H, & Warren, G A. Nuclear Resonance Fluorescence Excitations Near 2 MeV in 235U and 239Pu. United States.
Bertozzi, W, Caggiano, J A, Hensley, W K, Johnson, M S, Korbly, S E, Ledoux, R J, McNabb, D P, Norman, E B, Park, W H, and Warren, G A. Wed . "Nuclear Resonance Fluorescence Excitations Near 2 MeV in 235U and 239Pu". United States. doi:. https://www.osti.gov/servlets/purl/943829.
@article{osti_943829,
title = {Nuclear Resonance Fluorescence Excitations Near 2 MeV in 235U and 239Pu},
author = {Bertozzi, W and Caggiano, J A and Hensley, W K and Johnson, M S and Korbly, S E and Ledoux, R J and McNabb, D P and Norman, E B and Park, W H and Warren, G A},
abstractNote = {A search for nuclear resonance fluorescence excitations in {sup 235}U and {sup 239}Pu within the energy range of 1.0- to 2.5-MeV was performed using a 4-MeV continuous bremsstrahlung source at the High Voltage Research Laboratory at the Massachusetts Institute of Technology. Measurements utilizing high purity Ge detectors at backward angles identified 9 photopeaks in {sup 235}U and 12 photopeaks in {sup 239}Pu in this energy range. These resonances provide unique signatures that allow the materials to be non-intrusively detected in a variety of environments including fuel cells, waste drums, vehicles and containers. The presence and properties of these states may prove useful in understanding the mechanisms for mixing low-lying collective dipole excitations with other states at low excitations in heavy nuclei.},
doi = {},
journal = {Physical Review C, vol. 78, no. 4, October 8, 2008, pp. 041601},
number = 4,
volume = 78,
place = {United States},
year = {Wed Dec 27 00:00:00 EST 2006},
month = {Wed Dec 27 00:00:00 EST 2006}
}