Filters
Results 1 - 1 of 1
Results 1 - 1 of 1.
Search took: 0.02 seconds
AbstractAbstract
[en] An optical fiber sensor based on the use of classical technologies (optoelectronic, laser, optical fibers,...) can be connected to the Optically Stimulated Luminescence properties (or OSL) of the aluminium oxide doped with carbon in order to provide several new capabilities compared to usual dosimeters: remote dose measurements, quasi 'real time' dose measurements, applied to personal dosimetry thanks to a low fading level at room temperature. This thesis work shows the studies about: 1)the state of the art about dosimetry based on the aluminium oxide doped with carbon and its OSL properties (emission and stimulation spectra, glow curves, trap and recombination energy levels,...), 2)the state of the art about international standardization, not only, with regard to personal dosimetry (IEC 61066 Standard) but also to the description of operational quantities called personal dose equivalent Hp(10) and Hp(0,07), 3)the experimental development of a new sensor device based on aluminium oxide crystals (design, realization, tests,...), 4)the application of statistical Monte Carlo calculation methods (code MCNP4B) to the simulation of the sensor head in accordance with the IEC Standard 61066 with regard to the energy and angular response Hp(10). (author)
[fr]
Un capteur a Fibre Optique fonde sur la mise en oeuvre de technologies classiques (optoelectronique, LASER, fibres optiques...) alliees au phenomene de Luminescence Stimulee Optiquement ou OSL) observe dans les cristaux d'oxyde d'aluminium dope au carbone, apporte des fonctionnalites nouvelles par rapport aux dosimetres classiques: mesure deportee (fibre optique), mesure quasi 'temps reel', mesure appliquee a la dosimetrie du personnel, mesure a faible fading a temperature ambiante. Ce travail de these presente les etudes concernant: 1)l'etat de l'art en matiere de dosimetrie a base d'oxyde d'aluminium dope au carbone (spectres d'emission, de stimulation, thermogramme, niveaux pieges et niveaux de recombinaisons, centres F...), 2)l'etat de l'art en matiere de normalisation internationale en matiere de dosimetrie individuelle (Norme CEl 61066) et la description des equivalents de dose individuels Hp(10) et Hp(0,07), 3)le developpement experimental d'un nouveau Capteur a Fibre Optique fonde sur le principe de la Luminescence par Stimulation Optique (conception, realisation et tests,...), 4)l'application des methodes statistiques de calcul par Monte Carlo (code MCNP4B) a la mise en conformite de la tete du capteur vis a vis de la norme CEl 61066 en matiere de reponse dosimetrique Hp(10) en energie et en angle d'incidence des photonsOriginal Title
Dosimetrie par luminescence stimulee optiquement deportee par fibre optique: etude de capteurs a alumine α pour la dosimetrie du personnel en temps reel
Primary Subject
Source
15 Nov 2001; 191 p; [100 refs.]; Available from the INIS Liaison Officer for France, see the 'INIS cotacts' section of the INIS website for current contact and E-mail addresses: http://www.iaea.org/inis/Contacts/; Also available from Service Commun de la Documentation, SCD Universite Montpellier 2 Place Eugene Bataillon Bat 8, 34090 Montpellier (France); Electronique, Optronique et Systemes
Record Type
Report
Literature Type
Thesis/Dissertation
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue