Neutron Resonance Spin Determination Using Multi-Segmented Detector DANCE

Journal Article · Wed Jun 01 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3586169· OSTI ID:21513427

Baramsai, B; Mitchell, G E; Chyzh, A; Dashdorj, D; Walker, C ^[1]; Agvaanluvsan, U ^[2]; Becvar, F; Krticka, M ^[3]; Bredeweg, T A; Couture, A; Haight, R C; Jandel, M; Keksis, A L; O'Donnell, J M; Rundberg, R S; Ullmann, J L; Vieira, D J; Wouters, J M ^[4]

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1. North Carolina State University, Raleigh, NC 27695 (United States)
2. Stanford University, Palo Alto, CA 94305 (United States)
3. Charles University in Prague, CZ-180 00 Prague 8 (Czech Republic)
4. Los Alamos National Laboratory, PO Box 1663, Los Alamos, NM 87545 (United States)

A sensitive method to determine the spin of neutron resonances is introduced based on the statistical pattern recognition technique. The new method was used to assign the spins of s-wave resonances in {sup 155}Gd. The experimental neutron capture data for these nuclei were measured with the DANCE (Detector for Advanced Neutron Capture Experiment) calorimeter at the Los Alamos Neutron Science Center. The highly segmented calorimeter provided detailed multiplicity distributions of the capture {gamma}-rays. Using this information, the spins of the neutron capture resonances were determined. With these new spin assignments, level spacings are determined separately for s-wave resonances with J{sup {pi}} = 1{sup -} and 2{sup -}.

• OSTI ID: 21513427
• Journal Information: AIP Conference Proceedings, Vol. 1336, Issue 1; Conference: CAARI 2010: 21. International Conference on the Application of Accelerators in Research and Industry, Fort Worth, TX (United States), 8-13 Aug 2010; Other Information: DOI: 10.1063/1.3586169; (c) 2011 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALLOCATIONS
CALORIMETERS
DISTRIBUTION
GADOLINIUM 155
GAMMA RADIATION
MULTIPLICITY
NEUTRON REACTIONS
NEUTRON SOURCES
NEUTRONS
PATTERN RECOGNITION
RESONANCE
S WAVES
SPIN
ANGULAR MOMENTUM
BARYON REACTIONS
BARYONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
EVEN-ODD NUCLEI
FERMIONS
GADOLINIUM ISOTOPES
HADRON REACTIONS
HADRONS
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOTOPES
MEASURING INSTRUMENTS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
PARTIAL WAVES
PARTICLE PROPERTIES
PARTICLE SOURCES
RADIATION SOURCES
RADIATIONS
RARE EARTH NUCLEI
STABLE ISOTOPES