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Contribution to the development of numerical tools for the hardening of electronic devices to the neutronic and electromagnetic environment induced by a high power gain shot; Contribution a la mise en oeuvre de moyens de simulation numerique pour l'etude de la vulnerabilite des systemes electriques soumis a l'environnement radiatif et electromagnetique du Laser Megajoule

Abstract

When fusion ignition will be attained inside the target chambers of high energy laser facilities (LMJ-France and NIF-Usa), a harsh environment, composed of nuclear particles and an electromagnetic pulse (EMP) will be induced. All electronic devices located in the vicinity will be sensitive to this environment. In the first part of this work, a simulation method has been developed to evaluate transient currents that will be induced in coaxial cables. The relevance of this model is then discussed thanks to comparisons with experimental results. In a second part, the possibility to simulate the propagation of the EMP, inside and outside such a big structure as a target chamber, using the finite difference in time and domain (FDTD) method is evaluated. The use of a classic FDTD method is impossible for this kind of simulation because of the huge computer resources needed. It is the reason why a 3-dimensional space-time sub-grid method for FDTD has been developed and some massively parallel FDTD calculations have also been performed. (author)
Authors:
Publication Date:
Dec 15, 2007
Product Type:
Thesis/Dissertation
Report Number:
FRNC-TH-7602
Resource Relation:
Other Information: TH: These discipline: electronique des hautes frequences et optoelectronique. Specialite: telecommunication; 57 refs.; Also available from Service Commun de la documentation. Bibliotheque universitaire. Section Sciences et Techniques, 123 avenue Albert Thomas, 87060 - Limoges Cedex (France)
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COAXIAL CABLES; COMPUTERIZED SIMULATION; ELECTRICAL TRANSIENTS; ELECTROMAGNETIC PULSES; FINITE DIFFERENCE METHOD; MESH GENERATION; PHYSICAL RADIATION EFFECTS; VALIDATION
OSTI ID:
21132722
Research Organizations:
Limoges Univ., 87 (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR0802454014048
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
245 pages
Announcement Date:
Mar 09, 2009

Citation Formats

Gazave, J. Contribution to the development of numerical tools for the hardening of electronic devices to the neutronic and electromagnetic environment induced by a high power gain shot; Contribution a la mise en oeuvre de moyens de simulation numerique pour l'etude de la vulnerabilite des systemes electriques soumis a l'environnement radiatif et electromagnetique du Laser Megajoule. France: N. p., 2007. Web.
Gazave, J. Contribution to the development of numerical tools for the hardening of electronic devices to the neutronic and electromagnetic environment induced by a high power gain shot; Contribution a la mise en oeuvre de moyens de simulation numerique pour l'etude de la vulnerabilite des systemes electriques soumis a l'environnement radiatif et electromagnetique du Laser Megajoule. France.
Gazave, J. 2007. "Contribution to the development of numerical tools for the hardening of electronic devices to the neutronic and electromagnetic environment induced by a high power gain shot; Contribution a la mise en oeuvre de moyens de simulation numerique pour l'etude de la vulnerabilite des systemes electriques soumis a l'environnement radiatif et electromagnetique du Laser Megajoule." France.
@misc{etde_21132722,
title = {Contribution to the development of numerical tools for the hardening of electronic devices to the neutronic and electromagnetic environment induced by a high power gain shot; Contribution a la mise en oeuvre de moyens de simulation numerique pour l'etude de la vulnerabilite des systemes electriques soumis a l'environnement radiatif et electromagnetique du Laser Megajoule}
author = {Gazave, J}
abstractNote = {When fusion ignition will be attained inside the target chambers of high energy laser facilities (LMJ-France and NIF-Usa), a harsh environment, composed of nuclear particles and an electromagnetic pulse (EMP) will be induced. All electronic devices located in the vicinity will be sensitive to this environment. In the first part of this work, a simulation method has been developed to evaluate transient currents that will be induced in coaxial cables. The relevance of this model is then discussed thanks to comparisons with experimental results. In a second part, the possibility to simulate the propagation of the EMP, inside and outside such a big structure as a target chamber, using the finite difference in time and domain (FDTD) method is evaluated. The use of a classic FDTD method is impossible for this kind of simulation because of the huge computer resources needed. It is the reason why a 3-dimensional space-time sub-grid method for FDTD has been developed and some massively parallel FDTD calculations have also been performed. (author)}
place = {France}
year = {2007}
month = {Dec}
}