Published 1984 | Version v1
Report Open

Study of the light particle emission in the transition region of mechanisms on SARA

Creators

Description

The results of one of the first experiments on SARA are given. 14N+27Al reaction with a 420 MeV Nitrogen beams has been studied. The experimantal techniques, peculiarly a simple study of the CSI (Na) and BGO crystals, are reported. Then the experimental results are presented, reaction mechanism are described and analyzed. We try to fit the fragmentation process with the Goldhaber and Friedman models. the isotope production for Z=1, 2 is analyzed in the frame of the coalescence model and of the hot liquid nuclear matter drop model. Our exclusive measurements bring some new informations about the different mechanisms origin. To conclude, a code coupling reaction dynamics and preequilibrium emission is described and results are compared with the experimental data

Availability note (English)

MF available from INIS under the Report Number.

Abstract (French)

Ce memoire presente les resultats des toutes premieres experiences realisees sur SARA: la reaction etudiee est 14N+27Al avec une energie incidente des ions 14N de 420 MeV. Nous presentons d'abord les techniques experimentales utilisees au cours de cette experience, notamment une etude sommaire des cristaux scintillants d'iodure de Cesium CSI (Na) et de Germanate de Bismuth (BGO). Nous rapportons ensuite les resultats experimentaux. Apres avoir donne une proportion des differents mecanismes, nous entreprenons l'analyse de chacune des principales voies de sortie. La composante de fragmentation est traitee par deux modeles, celui de Goldhaber et celui de Friedman. La production des isotopes des charges 1 et 2 est analysee ensuite par le modele de coalescence et celui d'une goutte liquide chaude de matiere nucleaire. Enfin les mesures exclusives que nous avons faites apportent des renseignements complementaires sur l'origine des differents mecanismes. Nous concluerons avec la description d'un code couplant le dynamique et l'emission de preequilibre. Les resultats du code sont ensuite compares a nos resultats experimentaux

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Additional details

Additional titles

Original title (French)
Etude de l'emission de particules legeres dans la region de transition des mecanismes sur S.A.R.A

Publishing Information

Imprint Pagination
85 p.
Report number
LYCEN--8349

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
16029488
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Numerical Data, Thesis
Descriptors DEI
ALUMINIUM 27 TARGET; ANGULAR DISTRIBUTION; BGO DETECTORS; CESIUM IODIDES; CROSS SECTIONS; DE-EXCITATION; EXPERIMENTAL DATA; FISSION FRAGMENTS; HEAVY ION FUSION REACTIONS; LIQUID DROP MODEL; MEV RANGE 100-1000; NITROGEN 14 REACTIONS; P CODES; SARA CYCLOTRON
Descriptors DEC
ACCELERATORS; ALKALI METAL COMPOUNDS; CESIUM COMPOUNDS; COMPUTER CODES; CYCLIC ACCELERATORS; CYCLOTRONS; DATA; DISTRIBUTION; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; HALIDES; HALOGEN COMPOUNDS; HEAVY ION REACTIONS; INFORMATION; IODIDES; IODINE COMPOUNDS; ISOCHRONOUS CYCLOTRONS; MATHEMATICAL MODELS; MEASURING INSTRUMENTS; MEV RANGE; NUCLEAR FRAGMENTS; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEOSYNTHESIS; NUMERICAL DATA; RADIATION DETECTORS; SCINTILLATION COUNTERS; SOLID SCINTILLATION DETECTORS; SYNTHESIS; TARGETS