OLGA – efficient full wave code for the coupling of LH grills

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F18%3A00496469" target="_blank" >RIV/61389021:_____/18:00496469 - isvavai.cz</a>
Result on the web
<a href="http://ocs.ciemat.es/EPS2018PAP/pdf/P1.1069.pdf" target="_blank" >http://ocs.ciemat.es/EPS2018PAP/pdf/P1.1069.pdf</a>
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
OLGA – efficient full wave code for the coupling of LH grills
Original language description
The full wave code OLGA, for determining the coupling of a single row lower hybrid launcher (waveguide grills) to the plasma, is extended to handle multirow multijunction active passive structures (like the C3 and C4 launchers on TORE SUPRA) by implementing the scattering matrix formalism. The extended code is still computationally fast because of the use of (i) 2D splines of the plasma surface admittance in the accessibility region of the k-space, (ii) high order Gaussian quadrature rules for the integration of the coupling elements and (iii) utilizing the symmetries of the coupling elements in the multiperiodic structures. The extended OLGA code is benchmarked against the ALOHA-1D, ALOHA-2D and TOPLHA codes for the coupling of the C3 and C4 TORE SUPRA launchers for several plasma configurations derived from reflectometry and interferometery. Unlike nearly all codes (except the ALOHA-1D code), OLGA does not require large computational resources and can be used for everyday usage in planning experimental runs. In particular, it is shown that the OLGA code correctly handles the coupling of the C3 and C4 launchers over a very wide range of plasma densities in front of the grill.
Czech name
—
Czech description
—

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
45th EPS Conference on Plasma Physics, europhysics conference abstracts
ISBN
979-10-96389-08-7
ISSN
—
e-ISSN
—
Number of pages
4
Pages from-to
1-4
Publisher name
European physical society
Place of publication
Praha
Event location
Praha
Event date
Jul 2, 2018
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
—

Similar results(10)