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Study of the point defect creation and of the excitonic luminescence in alkali halides irradiated by swift heavy ions; Etude de la creation de defauts ponctuels et de la luminescence excitonique d`halogenures d`alcalins irradies par les ions lourds de grande vitesse

Abstract

The aim of this experimental thesis is to study the excitonic mechanisms and of the defect creation, in NaCl and KBr, under dense electronic excitations induced by swift heavy ion irradiations. In the first part, we present the main features of the interaction of swift heavy ions with solid targets, and after we review the well known radiolytic processes of the defect creation during X-ray irradiation. In the second chapter, we describe our experimental set-up. In the chapter III, we present our results of the in-situ optical absorption measurements. This results show that defect creation is less sensitive to the temperature than during a classical irradiation. Besides, we observe new mechanisms concerning the defect aggregation. In the chapter IV, we present the results of excitonic luminescence induced by swift by swift heavy ions. We observe that the luminescence yields only change with the highest electronic stopping power. In the chapter V, we perform thermal spike and luminescence yields calculations and we compare the numerical results to the experiments presented in the chapter IV. (author). 121 refs., 65 figs., 30 tabs.
Authors:
Publication Date:
Oct 05, 1994
Product Type:
Thesis/Dissertation
Report Number:
CEA-R-5681
Reference Number:
SCA: 665000; PA: AIX-28:032826; EDB-97:058773; NTS-97:012239; SN: 97001766339
Resource Relation:
Other Information: TH: These (D. es Sc.).; PBD: 5 Oct 1994
Subject:
66 PHYSICS; POTASSIUM BROMIDES; HEAVY IONS; IRRADIATION; LUMINESCENCE; SODIUM CHLORIDES; DEFECTS; EXCITONS; GANIL CYCLOTRON; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K; THERMAL SPIKES
OSTI ID:
455148
Research Organizations:
CEA Centre d`Etudes de Saclay, 91 - Gif-sur-Yvette (France). Dept. de Recherche sur l`Etat Condense, les Atomes et les Molecules; Caen Univ., 14 (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
Other: ON: DE97621449; TRN: FR9603731032826
Availability:
INIS; OSTI as DE97621449
Submitting Site:
FRN
Size:
192 p.
Announcement Date:
Apr 17, 1997

Citation Formats

Protin, L. Study of the point defect creation and of the excitonic luminescence in alkali halides irradiated by swift heavy ions; Etude de la creation de defauts ponctuels et de la luminescence excitonique d`halogenures d`alcalins irradies par les ions lourds de grande vitesse. France: N. p., 1994. Web.
Protin, L. Study of the point defect creation and of the excitonic luminescence in alkali halides irradiated by swift heavy ions; Etude de la creation de defauts ponctuels et de la luminescence excitonique d`halogenures d`alcalins irradies par les ions lourds de grande vitesse. France.
Protin, L. 1994. "Study of the point defect creation and of the excitonic luminescence in alkali halides irradiated by swift heavy ions; Etude de la creation de defauts ponctuels et de la luminescence excitonique d`halogenures d`alcalins irradies par les ions lourds de grande vitesse." France.
@misc{etde_455148,
title = {Study of the point defect creation and of the excitonic luminescence in alkali halides irradiated by swift heavy ions; Etude de la creation de defauts ponctuels et de la luminescence excitonique d`halogenures d`alcalins irradies par les ions lourds de grande vitesse}
author = {Protin, L}
abstractNote = {The aim of this experimental thesis is to study the excitonic mechanisms and of the defect creation, in NaCl and KBr, under dense electronic excitations induced by swift heavy ion irradiations. In the first part, we present the main features of the interaction of swift heavy ions with solid targets, and after we review the well known radiolytic processes of the defect creation during X-ray irradiation. In the second chapter, we describe our experimental set-up. In the chapter III, we present our results of the in-situ optical absorption measurements. This results show that defect creation is less sensitive to the temperature than during a classical irradiation. Besides, we observe new mechanisms concerning the defect aggregation. In the chapter IV, we present the results of excitonic luminescence induced by swift by swift heavy ions. We observe that the luminescence yields only change with the highest electronic stopping power. In the chapter V, we perform thermal spike and luminescence yields calculations and we compare the numerical results to the experiments presented in the chapter IV. (author). 121 refs., 65 figs., 30 tabs.}
place = {France}
year = {1994}
month = {Oct}
}