Published February 1979
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Study of the 21Ne Nuclear Structure by capture of thermal neutrons in natural neon
Description
Energy levels of 21Ne up to 6.76 MeV are studied by measuring the thermal neutron capture gama rays from natural neon. A Ge(Li) detector is used. Energies and intensities are measured relative to calibration lines of nitrogen. The Q-value and the cross section of the reaction 20Ne(n,γ)21Ne are calculated. The proposed level scheme is discussed in terms of the Nilsson model, considering the coupling of one particle to the 20Ne core. Coriolis coupling is taken into account for the three positive parity bands, K sup(π)=3/2+, 1/2+ and 5/2+. Measurements are made using the research reactor of the Instituto de Energia Atomica
Availability note (English)
MF available from INIS under the Report Number.Abstract (Portuguese)
Realiza-se um estudo dos niveis de energia ate 6.76 MeV do 21Ne por meio de medidas dos raios gama de captura de neutrons termicos em neonio natural utilizando um detector Ge(Li). Energias e intensidades sao medidas em relacao as linhas do nitrogenio tomadas como calibracao. O valor Q e a seccao de choque para a captura de neutrons termicos da reacao 20Ne(n,γ)21Ne tambem sao calculados. Discute-se o esquema de niveis proposto em termos do modelo de Nilsson, considerando o acoplamento de uma particula ao caroco formado pelo 20Ne. Considera-se a interacao de Coriolis para as tres bandas de paridade positiva, K sup(π)=3/2+, 1/2+ e 5/2+. As medidas sao realizadas no reator de pesquisa no Instituto de Energia AtomicaFiles
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Additional details
Additional titles
- Original title (Portuguese)
- Estudo da estrutura nuclear do
Publishing Information
- Imprint Pagination
- 64 p.
- Journal Issue
- no. 096
- Series
- IEA Dissertacao e Tese.
- Report number
- IEA-DT--096
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 10472300
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- CAPTURE; GAMMA RADIATION; INTEGRAL CROSS SECTIONS; MEV RANGE 01-10; NEON 20 REACTIONS; NEON 21; NEON 21 TARGET; NILSSON-MOTTELSON MODEL; NUCLEAR STRUCTURE; Q-VALUE; ROTATIONAL STATES; THERMAL NEUTRONS
- Descriptors DEC
- BARYONS; CROSS SECTIONS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY; ENERGY LEVELS; ENERGY RANGE; EVEN-ODD NUCLEI; EXCITED STATES; FERMIONS; HADRONS; HEAVY ION REACTIONS; IONIZING RADIATIONS; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL MODELS; MEV RANGE; NEON ISOTOPES; NEUTRONS; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; RADIATIONS; STABLE ISOTOPES; TARGETS