| Titre : |
Tirage et caractérisation des fibres monocristallin es scintillatrices de composition grenat. |
| Type de document : |
texte imprimé |
| Auteurs : |
Abdelghani Djebli, Auteur ; Fahima Boudjada, Directeur de thèse ; Kheirreddine Lebbou, Directeur de thèse |
| Editeur : |
جامعة الإخوة منتوري قسنطينة |
| Année de publication : |
2017 |
| Importance : |
119 f. |
| Format : |
30 cm. |
| Note générale : |
2 copies imprimées disponibles
|
| Langues : |
Français (fre) |
| Catégories : |
Français - Anglais
Physique
|
| Tags : |
YAG LuAG Fibres Scintillation croissance micro-pulling Down Growth ألياف وميض انماء µ-PD |
| Index. décimale : |
530 Physique |
| Résumé : |
The work of thesis was realized in collaboration with Our laboratory of Crystallography - University frères Mentouri, Constantine1- Algeria, institut lumière - matière ( ILM ) Lyon1- france, the European Center for Nuclear Research (CERN) in Geneva-Switzerland, and the Institute for Scintillation Materials NAS, Kharkov-Ukraine (ISMA), we developed and characterized crystal fibers doped with cerium and praseodymium by micro-pulling down technique.
Studies of the scintillation properties of cerium and praseodymium doped garnets, were performed on crystal fibers elaborated by the micro-pulling down growing technique.
Aluminates of A3Al5O12 (A = Y or Lu) doped with Ce3+ or Pr3+ ions were synthesized as mono-crystals fibers.
The studies carried out by DRX, absorption and emission spectroscopy demonstrate that the YAG and LuAG phases are obtained alone without any other parasitic phases. Measurements of attenuation along the fibers and distribution of the rare earth activator (Ce3+ or Pr3+) gave spatial mapping of the distribution of dopants in the fibers, which made it possible to evaluate the luminous in-homogeneities within the fiber Material as a function of the different growing parameters, which made it possible to evaluate the efficiency of each of the two materials in detecting the gamma rays.
The whole of this work clearly shows the potential applications of these two materials.
|
| Diplôme : |
Doctorat en sciences |
| En ligne : |
../theses/physique/DJE7237.pdf |
| Format de la ressource électronique : |
pdf |
| Permalink : |
index.php?lvl=notice_display&id=10832 |
Tirage et caractérisation des fibres monocristallin es scintillatrices de composition grenat. [texte imprimé] / Abdelghani Djebli, Auteur ; Fahima Boudjada, Directeur de thèse ; Kheirreddine Lebbou, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2017 . - 119 f. ; 30 cm. 2 copies imprimées disponibles
Langues : Français ( fre)
| Catégories : |
Français - Anglais
Physique
|
| Tags : |
YAG LuAG Fibres Scintillation croissance micro-pulling Down Growth ألياف وميض انماء µ-PD |
| Index. décimale : |
530 Physique |
| Résumé : |
The work of thesis was realized in collaboration with Our laboratory of Crystallography - University frères Mentouri, Constantine1- Algeria, institut lumière - matière ( ILM ) Lyon1- france, the European Center for Nuclear Research (CERN) in Geneva-Switzerland, and the Institute for Scintillation Materials NAS, Kharkov-Ukraine (ISMA), we developed and characterized crystal fibers doped with cerium and praseodymium by micro-pulling down technique.
Studies of the scintillation properties of cerium and praseodymium doped garnets, were performed on crystal fibers elaborated by the micro-pulling down growing technique.
Aluminates of A3Al5O12 (A = Y or Lu) doped with Ce3+ or Pr3+ ions were synthesized as mono-crystals fibers.
The studies carried out by DRX, absorption and emission spectroscopy demonstrate that the YAG and LuAG phases are obtained alone without any other parasitic phases. Measurements of attenuation along the fibers and distribution of the rare earth activator (Ce3+ or Pr3+) gave spatial mapping of the distribution of dopants in the fibers, which made it possible to evaluate the luminous in-homogeneities within the fiber Material as a function of the different growing parameters, which made it possible to evaluate the efficiency of each of the two materials in detecting the gamma rays.
The whole of this work clearly shows the potential applications of these two materials.
|
| Diplôme : |
Doctorat en sciences |
| En ligne : |
../theses/physique/DJE7237.pdf |
| Format de la ressource électronique : |
pdf |
| Permalink : |
index.php?lvl=notice_display&id=10832 |
|
Tirage et caractérisation des fibres monocristallin es scintillatrices de composition grenat.
