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Source

1981; 13 p

Record Type

Report

Literature Type

Numerical Data

Report Number

LSNN--81-01

Country of publication

Descriptors (DEI)

ALUMINIUM 28, COULOMB ENERGY, ENERGY LEVELS, EXPERIMENTAL DATA, PHOSPHORUS 28, SHELL MODELS, SILICON 28, THEORETICAL DATA, TRIPLETS, WAVE FUNCTIONS

Descriptors (DEC)

ALUMINIUM ISOTOPES, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, DATA, ENERGY, EVEN-EVEN NUCLEI, FUNCTIONS, INFORMATION, ISOTOPES, LIGHT NUCLEI, MATHEMATICAL MODELS, MINUTES LIVING RADIOISOTOPES, MULTIPLETS, NUCLEAR MODELS, NUCLEI, NUMERICAL DATA, ODD-ODD NUCLEI, PHOSPHORUS ISOTOPES, RADIOISOTOPES, SECONDS LIVING RADIOISOTOPES, SILICON ISOTOPES, STABLE ISOTOPES

Reference NumberReference Number

12626408

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²⁸P spectroscopy by the (³He,t) reaction

Ramstein, B.; Rosier, L.H.; Jeanperrin, C.
Nantes Univ., 44 (France). Lab. de Spectroscopie Nucleaire1978

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[en] The energy levels of ²⁸P were studied with the ²⁸Si(tau,t)²⁸P reaction at a bombarding energy of 35 MeV and 15 keV resolution (FWHM). Excitation energies were measured for 30 separated levels or multiplets with a precision of approximately 5 keV up to 3.911 MeV and approximately 10 keV up to 5.19 MeV (21 of these levels were precisely determined for the first time). Spectroscopic information was derived for 22 levels on the basis of the transfered-L shape analogy of their experimental angular distributions. Comparison was made with DWBA calculations. Some previous Jsup(π) ambiguities are now removed and we propose spectroscopic assignments up to 3.91 MeV. Odd parity levels appear above 3.2 MeV. Comparison was made with the other components of the A=28, in particular with the mirror nucleus ²⁸Al

[fr]

On a etudie les niveaux d'energie de ²⁸P a l'aide de la reaction ²⁸Si(tau,t)²⁸P a 35 MeV avec une resolution de 15 keV. On a mesure l'energie d'excitation de 30 niveaux isoles ou multiplets avec une precision de 5keV jusqu'a 3,911 MeV et de 10keV jusqu'a 5,19 MeV. (21 de ces niveaux etaient etudies pour la premiere fois). Des informations spectroscopiques ont ete obtenues pour 22 niveaux par analogie de forme du moment orbital transfere L de leurs distributions angulaires experimentales. On a etabli une comparaison avec les calculs DWBA. Les ambiguites concernant les niveaux Jsup(π) sont levees et on propose des donnees spectroscopiques jusqu'a 3,91 MeV. Les niveaux de parite impaire apparaissent au-dessus de 3,2 MeV. On a effectue une comparaison avec d'autres composants A=28, en particulier avec le noyau miroir ²⁸Al

Original Title

Spectroscopie du noyau ²⁸P au moyen de la reaction (³He,t)

Primary Subject

Source

1978; 22 p

Record Type

Report

Literature Type

Numerical Data

Report Number

LSNN--78-05

Country of publication

Descriptors (DEI)

ANGULAR DISTRIBUTION, DIFFERENTIAL CROSS SECTIONS, DWBA, ENERGY LEVELS, EXCITED STATES, EXPERIMENTAL DATA, GRAPHS, HELIUM 3 REACTIONS, MEV RANGE 10-100, PHOSPHORUS 28, SILICON 28 TARGET, SPIN, TABLES

Descriptors (DEC)

ANGULAR MOMENTUM, BETA DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, BORN APPROXIMATION, CROSS SECTIONS, DATA, DATA FORMS, DISTRIBUTION, ENERGY RANGE, INFORMATION, ISOTOPES, LIGHT NUCLEI, MEV RANGE, NUCLEAR REACTIONS, NUCLEI, NUMERICAL DATA, ODD-ODD NUCLEI, PARTICLE PROPERTIES, PHOSPHORUS ISOTOPES, RADIOISOTOPES, SECONDS LIVING RADIOISOTOPES, TARGETS

LanguageLanguage

GENERAL AND MISCELLANEOUS (F5100)

Reference NumberReference Number

11501655

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ANANKE, a new programme for the rapid calculation of the corrections to the angular distributions of elastically scattered neutrons

Jeanperrin, C.; Rosier, L.H.1975

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No abstract available

Original Title

ANANKE, un nouveau programme pour le calcul rapide des corrections a apporter aux distributions angulaires de neutrons diffuses elastiquement

Primary Subject

Secondary Subject

NUCLEAR PHYSICS AND RADIATION PHYSICS (A3300)

Record Type

Journal Article

Journal

Nuclear Instruments and Methods; v. 124(1); p. 243-252

Country of publication

Descriptors (DEI)

A CODES, ANGULAR DISTRIBUTION, CORRECTIONS, ELASTIC SCATTERING, MONTE CARLO METHOD, NEUTRON REACTIONS, SIMULATION

Descriptors (DEC)

BARYON REACTIONS, COMPUTER CODES, DISTRIBUTION, HADRON REACTIONS, NUCLEAR REACTIONS, NUCLEON REACTIONS, SCATTERING

LanguageLanguage

NUCLEAR PHYSICS AND RADIATION PHYSICS (A3415)

Reference NumberReference Number

6188323

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Elastic and inelastic scattering of 36 MeV alpha particles from even germanium isotopes

Rosier, L.H.; Obiajunwa, E.I.1989

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[en] Three stable even germanium isotopes have been studied by means of elastic and inelastic scattering of 36 MeV alpha particles on ^70,72,74Ge. The low-lying levels 0₁⁺, 2₁⁺, 3₁^-, 4₁⁺, 2₂⁺ and 0₂⁺ were analysed by means of coupled-channels calculations in the framework of the vibrational (harmonic and anharmonic) model and the asymmetric rotor model (except 0₂⁺ and 3₁^-). The anharmonic vibrational model gives a better description of these levels in all three isotopes. (orig.)

Primary Subject

Record Type

Journal Article

Literature Type

Numerical Data

Journal

Nuclear Physics, A; ISSN 0375-9474;

; CODEN NUPAB; v. 500(2); p. 323-340

Country of publication

NUCLEAR PHYSICS AND RADIATION PHYSICS (A3419)

Descriptors (DEI)

ALPHA PARTICLES, ALPHA REACTIONS, ALPHA SPECTRA, ANGULAR DISTRIBUTION, COUPLED CHANNEL THEORY, DIFFERENTIAL CROSS SECTIONS, E0-TRANSITIONS, E2-TRANSITIONS, E3-TRANSITIONS, E4-TRANSITIONS, ELASTIC SCATTERING, EXCITATION, EXPERIMENTAL DATA, GERMANIUM 70, GERMANIUM 70 TARGET, GERMANIUM 72, GERMANIUM 72 TARGET, GERMANIUM 74, GERMANIUM 74 TARGET, GERMANIUM ISOTOPES, GROUND STATES, INELASTIC SCATTERING, MEV RANGE 10-100, NUCLEAR DEFORMATION, OPTICAL MODELS, ROTATIONAL STATES, VIBRATIONAL STATES, WOODS-SAXON POTENTIAL

Descriptors (DEC)

CHARGED PARTICLES, CROSS SECTIONS, DATA, DEFORMATION, DISTRIBUTION, ENERGY LEVELS, ENERGY RANGE, ENERGY-LEVEL TRANSITIONS, EVEN-EVEN NUCLEI, EXCITED STATES, HELIUM IONS, INFORMATION, INTERMEDIATE MASS NUCLEI, IONIZING RADIATIONS, IONS, ISOTOPES, MATHEMATICAL MODELS, MEV RANGE, MULTIPOLE TRANSITIONS, NUCLEAR POTENTIAL, NUCLEAR REACTIONS, NUCLEI, NUMERICAL DATA, POTENTIALS, RADIATIONS, SCATTERING, SPECTRA, STABLE ISOTOPES, TARGETS

Reference NumberReference Number

21001323

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Evidence for a fine structure in ¹⁴C radioactivity

Brillard, L.; Elayi, A.G.; Hourani, E.; Hussonnois, M.; Le Du, J.F.; Rosier, L.H.; Stab, L.
Paris - 11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire1989

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[en] An experiment on the radioactivity of ²²³ Ra by ¹⁴ C emission has been performed, using an intense ²²⁷ Th source of 150 MBq (4 mCi) and the spectrometer of large solid angle SOLENO. The measured energy spectrum of the emitted ¹⁴ C nuclei clearly shows the presence of two peaks at the expected locations corresponding to transitions towards the ground state and the first excited state of the residual nucleus ²⁰⁹ Pb. A few events fall on the second and/or the third excited state location. This result shows for the first time the existence of a fine structure in ¹⁴ C radioactivity analogous to the one already known in α-decay. The branching ratios of the transitions to the ground state and to the first excited state are 0.15 ± 0.03 and 0.81±0.06 and the hindrance factors are 600 and 3, respectively

[fr]

La mesure de l'energie des noyaux de ¹⁴ C emis par ²²³ Ra a ete realisee en utilisant une source intense de ²²⁷ Th, le spectrometre a grand angle solide SOLENO et des detecteurs solides performants. Les differents spectres releves presentent deux pics tres nets dont les centroides correspondent a des transitions vers le niveau fondamental et le premier etat excite du noyau residuel ²⁰⁹ Pb, ainsi que quelques evenements que l'on peut attribuer a la transition vers le deuxieme et/ou le troisieme etat excite. Ce resultat montre pour la premiere fois l'existence d'une structure fine en radioactivite ¹⁴ C analogue a celle deja connue en radioactivite α. Les rapports d'embranchement des transitions vers l'etat fondamental et le premier etat excite sont de 0,15±0,03, de 0,81±0,06 et de l'ordre de 0,04 pour l'ensemble des deux etats suivants, ce qui conduit a des facteurs d'empechement de, respectivement, 600, 3 et 3

Original Title

Mise en evidence d'une structure fine dans la radioactivite ¹⁴C

Primary Subject

Source

1989; 11 p

Record Type

Report

Report Number

IPNO-DRE--89-30

Country of publication

Descriptors (DEI)

BRANCHING RATIO, CARBON 14, CARBON 14 EMISSION DECAY, ENERGY SPECTRA, ENERGY-LEVEL TRANSITIONS, EXCITED STATES, NUCLEAR STRUCTURE, RADIATION DETECTORS, RADIATION SOURCES, RADIOACTIVITY, RADON 223, SPECTROMETERS, THORIUM 227

Descriptors (DEC)

ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, CARBON ISOTOPES, DAYS LIVING RADIOISOTOPES, DECAY, ENERGY LEVELS, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, HEAVY ION EMISSION DECAY, HEAVY NUCLEI, ISOTOPES, LIGHT NUCLEI, MEASURING INSTRUMENTS, MINUTES LIVING RADIOISOTOPES, NUCLEAR DECAY, NUCLEI, RADIOISOTOPES, RADON ISOTOPES, SPECTRA, THORIUM ISOTOPES, YEARS LIVING RADIOISOTOPES

LanguageLanguage

Reference NumberReference Number

21066630

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Spectroscopy of ²⁸P levels using the (³He, t) reaction

Ramstein, B.; Rosier, L.H.; Jeanperrin, C.1979

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AbstractAbstract

[en] The energy levels of ²⁸P were studied with the ²⁸Si(tau, t)²⁸P reaction at a bombarding energy of 35 MeV and 15 keV resolution (FWHM). Excitation energies were measured for 30 separated levels of multiplets with a precision of approximately 5 keV up to 3.911 MeV approximately 10 keV up to 5.19 MeV (21 of these levels were precisely determined for the first time). Spectroscopic information was derived for 22 levels on the basis of the transfered-L shape analogy of their experimental angular distributions. Comparison was made with DWBA calculations. Some previous Jsup(π) ambiguities are now removed and spectroscopic assignments are proposed up to 3.91 MeV. Odd parity levels appear above 3.2 MeV. Comparison was made with the other components of the A = 28, T = 1 isobaric triplet, in particular with the mirror nucleus ²⁸Al. (Auth.)

Original Title

Spectroscopie du noyau ²⁸P au moyen de la reaction (³He, t)

Primary Subject

Record Type

Journal Article

Journal

Nucl. Phys., A; ISSN 0029-5582;

; v. 317(2-3); p. 460-472

Country of publication

Descriptors (DEI)

ANGULAR DISTRIBUTION, DIFFERENTIAL CROSS SECTIONS, DWBA, ENERGY RESOLUTION, EXCITATION, EXCITED STATES, HELIUM 3 REACTIONS, MEV RANGE 10-100, MIRROR NUCLEI, PARITY, PHOSPHORUS 28, PROTONS, SILICON 28 TARGET, SPIN

Descriptors (DEC)

ANGULAR MOMENTUM, BARYONS, BETA DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, BORN APPROXIMATION, CATIONS, CHARGED PARTICLES, CROSS SECTIONS, DISTRIBUTION, ELEMENTARY PARTICLES, ENERGY LEVELS, ENERGY RANGE, ENERGY-LEVEL TRANSITIONS, FERMIONS, HADRONS, HYDROGEN IONS, HYDROGEN IONS 1 PLUS, IONS, ISOTOPES, LIGHT NUCLEI, MEV RANGE, NUCLEAR REACTIONS, NUCLEI, NUCLEONS, ODD-ODD NUCLEI, PARTICLE PROPERTIES, PHOSPHORUS ISOTOPES, RADIOISOTOPES, RESOLUTION, SECONDS LIVING RADIOISOTOPES, TARGETS

LanguageLanguage

NUCLEAR PHYSICS AND RADIATION PHYSICS (A3417)

Reference NumberReference Number

10475841

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Elastic and inelastic scattering of protons and alpha particles from stable even samarium isotopes

Obiajunwa, E.I.; Rosier, L.H.; Wiele, J. van de1989

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[en] Differential cross sections have been measured for the elastic and inelastic scattering of 24 MeV protons from ^{148,150,152,154}Sm and of 36 MeV alpha particles from ^150,152Sm. The experimental results were analysed in the framework of coupled-channels and collective-model theories. ^148,150Sm were assumed to be harmonic vibrators while ^152,154Sm were treated as symmetric rotators. The octupole vibrational bands (1^-, 3^-, 5^-) in ^152,154Sm were satisfactorily analysed simultaneously with the ground-state band in the framework of the rotation-vibration model. (orig.)

Primary Subject

Secondary Subject

NUCLEAR PHYSICS AND RADIATION PHYSICS (A3416)

Record Type

Journal Article

Literature Type

Numerical Data

Journal

Nuclear Physics, A; ISSN 0375-9474;

; CODEN NUPAB; v. 500(2); p. 341-355

Country of publication

Descriptors (DEI)

ALPHA PARTICLES, ALPHA REACTIONS, ALPHA SPECTRA, ANGULAR DISTRIBUTION, COLLECTIVE MODEL, COUPLED CHANNEL THEORY, DIFFERENTIAL CROSS SECTIONS, E1-TRANSITIONS, E2-TRANSITIONS, E3-TRANSITIONS, E4-TRANSITIONS, ELASTIC SCATTERING, EXCITATION, EXPERIMENTAL DATA, GROUND STATES, INELASTIC SCATTERING, MEV RANGE 10-100, NUCLEAR DEFORMATION, OPTICAL MODELS, PROTON REACTIONS, PROTON SPECTRA, PROTONS, ROTATIONAL STATES, SAMARIUM 148, SAMARIUM 148 TARGET, SAMARIUM 150, SAMARIUM 150 TARGET, SAMARIUM 152, SAMARIUM 152 TARGET, SAMARIUM 154, SAMARIUM 154 TARGET, SAMARIUM ISOTOPES, VIBRATIONAL STATES, WOODS-SAXON POTENTIAL

Descriptors (DEC)

ALPHA DECAY RADIOISOTOPES, BARYON REACTIONS, BARYONS, CATIONS, CHARGED PARTICLES, CROSS SECTIONS, DATA, DEFORMATION, DISTRIBUTION, ELEMENTARY PARTICLES, ENERGY LEVELS, ENERGY RANGE, ENERGY-LEVEL TRANSITIONS, EVEN-EVEN NUCLEI, EXCITED STATES, FERMIONS, HADRON REACTIONS, HADRONS, HELIUM IONS, HYDROGEN IONS, HYDROGEN IONS 1 PLUS, INFORMATION, INTERMEDIATE MASS NUCLEI, IONIZING RADIATIONS, IONS, ISOTOPES, MATHEMATICAL MODELS, MEV RANGE, MULTIPOLE TRANSITIONS, NUCLEAR MODELS, NUCLEAR POTENTIAL, NUCLEAR REACTIONS, NUCLEI, NUCLEON REACTIONS, NUCLEONS, NUMERICAL DATA, POTENTIALS, RADIATIONS, RADIOISOTOPES, RARE EARTH NUCLEI, SCATTERING, SPECTRA, STABLE ISOTOPES, TARGETS, YEARS LIVING RADIOISOTOPES

Reference NumberReference Number

21001345

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Elastic scattering of 6.4MeV neutrons on ³¹P, ⁵⁹Co, ⁷⁵As, ¹²⁷I and ²⁰⁹Bi

Ramstein, B.; Jeanperrin, C.; Rosier, L.H.; Paris-11 Univ., 91 - Orsay1976

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[en] Elastic scattering of 6.4MeV neutrons has been studied with ³¹P, ⁵⁹Co, ⁷⁵As, ¹²⁷I and ²⁰⁹Bi as scatterers. Differential cross-section have been measured between 5 and 130 deg and total scattering cross-sections have been deduced. The results were analyzed in terms of the optical model the parameters of which were derived for each distribution. Some disagreements were observed with ⁵⁹Co and ⁷⁵As. Their interpretation was attempted using residual electromagnetic effects for the former and channel coupling for the latter

[fr]

On a etudie la diffusion elastique de neutrons de 6,4MeV par ³¹P, ⁵⁹Co, ⁷⁵As, ¹²⁷I et ²⁰⁹Bi. Les sections efficaces differentielles ont ete mesurees entre 5 et 130 deg et on en a deduit les sections efficaces totales elastiques. On a analyse les resultats experimentaux a l'aide du modele optique dont on a determine les parametres pour chaque distribution. Puis on a tente d'interpreter les desaccords observes dans les cas de ⁵⁹Co et ⁷⁵As, respectivement par des interactions residuelles electromagnetiques et par le couplage des voies de diffusion

Original Title

Diffusion elastique de neutrons de 6,4MeV par ³¹P, ⁵⁹Co, ⁷⁵As, ¹²⁷I et ²⁰⁹Bi

Primary Subject

Record Type

Journal Article

Journal

J. Phys. (Paris); v. 37(6); p. 651-657

Country of publication

ARSENIC 75 TARGET, BISMUTH 209 TARGET, COBALT 59 TARGET, COUPLED CHANNEL THEORY, DIFFERENTIAL CROSS SECTIONS, ELASTIC SCATTERING, IODINE 127 TARGET, MEV RANGE 01-10, NEUTRON REACTIONS, OPTICAL MODELS, PHOSPHORUS 31 TARGET, TOTAL CROSS SECTIONS

Descriptors (DEI)

Descriptors (DEC)

BARYON REACTIONS, CROSS SECTIONS, ENERGY RANGE, HADRON REACTIONS, MATHEMATICAL MODELS, MEV RANGE, NUCLEAR REACTIONS, NUCLEON REACTIONS, SCATTERING, TARGETS

LanguageLanguage

NUCLEAR PHYSICS AND RADIATION PHYSICS (A3415)

Reference NumberReference Number

7277552

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Proton inelastic scattering by the even-Ge isotopes at Esub(p)=22 MeV

Avignon, P.; Rosier, L.H.; Tamisier, R.; Ramstein, B.; Delaroche, J.P.
CEA Centre d'Etudes de Bruyeres-le-Chatel, 92 - Montrouge (France)1983

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AbstractAbstract

[en] The even-Ge(p,p') inelastic scattering has been studied at 22 MeV with an overall energy resolution of 10 keV using a tandem Van de Graaff and a split pole magnetic spectrometer. Angular distributions have been obtained for about 40 levels in each isotope. DWBA, vibrational and asymmetric rotor model coupled channel calculations have been made. Spin and parity assignments have been deduced. Possible unnatural parity levels have been populated

Primary Subject

Source

May 1983; 5 p; International symposium on light ion reaction mechanism; Osaka (Japan); 16-20 May 1983

Record Type

Report

Literature Type

Conference

Report Number

CEA-CONF--7087

Country of publication