NEUTRON GENERATOR OUTPUT MONITORING FOR NORMALIZATION OF GAMMA-RAY SPECTRA. [electronic resource]
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| Online Access: |
Online Access |
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| Format: | Government Document Electronic eBook |
| Language: | English |
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Washington, D.C. : Oak Ridge, Tenn. :
United States. Dept. of Energy. Office of Science ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
2006.
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| Abstract: | Neutron generators (NG) being devices where neutron outputs are accomplished electrically, suffer from fluctuations in their outputs. Of particular importance are the short term variations that may affect individual data acquisition runs. Thus when using NGs for quantitative neutron-induced gamma-ray spectroscopy, the neutron output must be continuously monitored in real time, and normalization procedures subsequently applied to properly evaluate the gamma-ray spectra. Using a plastic scintillator, we developed a scheme for detecting fast neutrons that relies firstly, on recording a spectrum and, secondly, on establishing a region-of-interest (ROI) that may effectively discriminate against gamma rays that are always present in a neutron field. We discuss the optimization of these procedures for a field system to measure carbon in soil. |
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| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 05/08/2006. "bnl--77733-2007-cp" "KP1208000" FIFTH ANNUAL CONFERENCE ON CARBON CAPTURE AND SEQUESTRATION; ALEXANDRIA, VA; 20060508 through 20060511. MITRA,S.; WIELOPOLSKI, L. |