Thermal Analysis of EPOS components
We present a simulation study of the thermal behaviour of essential parts of the electron-positron converter of the positron source EPOS at the Research Center Dresden-Rossendorf. The positron moderator foil and the upper tube element of the electrostatic extraction einzellens are directly exposed t...
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Forschungszentrum Dresden-Rossendorf
2010
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ndltd-DRESDEN-oai-qucosa-de-qucosa-216222021-03-30T05:06:16Z Thermal Analysis of EPOS components urn:nbn:de:bsz:d120-qucosa-27950 eng urn:nbn:de:bsz:d120-qucosa-237199 qucosa:22350 We present a simulation study of the thermal behaviour of essential parts of the electron-positron converter of the positron source EPOS at the Research Center Dresden-Rossendorf. The positron moderator foil and the upper tube element of the electrostatic extraction einzellens are directly exposed to the primary electron beam (40 MeV, 40 kW). Thus, it was necessary to prove by sophisticated simulations that the construction can stand the evolving temperatures. It was found that thin moderator foils (< 20...40 µm) will not show a too strong heating. Moreover, the temperature can be varied in a wide range by choosing an appropriate thickness. Thus, the radiation-induced lattice defects can at least partly be annealed during operation. The wall of the extraction lens which is made from a stainless steel tube must be distinctly thinned to avoid damage temperatures. The simulations were performed time dependent. We found that the critical parts reach their final temperature after less than a minute. Brauer, G. Jungmann, M. Altstadt, E. Werner, M. Krause-Rehberg, R. Rogov, A. Noack, K. Forschungszentrum Dresden-Rossendorf 2010-03-31 2008 Wissenschaftlich-Technische Berichte / Forschungszentrum Dresden-Rossendorf; FZD-499 2008 info:eu-repo/semantics/openAccess doc-type:report info:eu-repo/semantics/report doc-type:Text https://hzdr.qucosa.de/id/qucosa%3A21622 https://hzdr.qucosa.de/api/qucosa%3A21622/attachment/ATT-0/ |
collection |
NDLTD |
language |
English |
sources |
NDLTD |
description |
We present a simulation study of the thermal behaviour of essential parts of the electron-positron converter of the positron source EPOS at the Research Center Dresden-Rossendorf. The positron moderator foil and the upper tube element of the electrostatic extraction einzellens are directly exposed to the primary electron beam (40 MeV, 40 kW). Thus, it was necessary to prove by sophisticated simulations that the construction can stand the evolving temperatures. It was found that thin moderator foils (< 20...40 µm) will not show a too strong heating. Moreover, the temperature can be varied in a wide range by choosing an appropriate thickness. Thus, the radiation-induced lattice defects can at least partly be annealed during operation. The wall of the extraction lens which is made from a stainless steel tube must be distinctly thinned to avoid damage temperatures. The simulations were performed time dependent. We found that the critical parts reach their final temperature after less than a minute. |
author |
Brauer, G. Jungmann, M. Altstadt, E. Werner, M. Krause-Rehberg, R. Rogov, A. Noack, K. |
spellingShingle |
Brauer, G. Jungmann, M. Altstadt, E. Werner, M. Krause-Rehberg, R. Rogov, A. Noack, K. Thermal Analysis of EPOS components |
author_facet |
Brauer, G. Jungmann, M. Altstadt, E. Werner, M. Krause-Rehberg, R. Rogov, A. Noack, K. |
author_sort |
Brauer, G. |
title |
Thermal Analysis of EPOS components |
title_short |
Thermal Analysis of EPOS components |
title_full |
Thermal Analysis of EPOS components |
title_fullStr |
Thermal Analysis of EPOS components |
title_full_unstemmed |
Thermal Analysis of EPOS components |
title_sort |
thermal analysis of epos components |
publisher |
Forschungszentrum Dresden-Rossendorf |
publishDate |
2010 |
url |
http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-27950 https://hzdr.qucosa.de/id/qucosa%3A21622 https://hzdr.qucosa.de/api/qucosa%3A21622/attachment/ATT-0/ |
work_keys_str_mv |
AT brauerg thermalanalysisofeposcomponents AT jungmannm thermalanalysisofeposcomponents AT altstadte thermalanalysisofeposcomponents AT wernerm thermalanalysisofeposcomponents AT krauserehbergr thermalanalysisofeposcomponents AT rogova thermalanalysisofeposcomponents AT noackk thermalanalysisofeposcomponents |
_version_ |
1719393604145774592 |