10.1109/TNS.2021.3049319
https://zenodo.org/records/5105593
oai:zenodo.org:5105593
Daniel González Iglesias
Daniel González Iglesias
Instituto de Física Corpuscular (CSIC-UV)
Daniel Esperante
Daniel Esperante
Instituto de Física Corpuscular (CSIC-UV)
Benito Gimeno
Benito Gimeno
Instituto de Física Corpuscular (CSIC-UV)
Marçà Boronat
Marçà Boronat
Instituto de Física Corpuscular (CSIC-UV)
César Blanch
César Blanch
Instituto de Física Corpuscular (CSIC-UV)
Nuria Fuster-Martínez
Nuria Fuster-Martínez
Instituto de Física Corpuscular (CSIC-UV)
Pablo Martinez-Reviriego
Pablo Martinez-Reviriego
Instituto de Física Corpuscular (CSIC-UV)
Pablo Martín Luna
Pablo Martín Luna
Instituto de Física Corpuscular (CSIC-UV)
Juan Fuster
Juan Fuster
Instituto de Física Corpuscular (CSIC-UV)
Analytical RF Pulse Heating Analysis for High Gradient Accelerating Structures
Zenodo
2021
RF pulse heating
thermal analysis
RF accelerating structures
2021-02-01
eng
Plot
https://zenodo.org/communities/compactlight
https://zenodo.org/communities/eu
Creative Commons Attribution 4.0 International
The main aim of this work is to present a simple
method, based on analytical expressions, for obtaining the temperature
increase due to the Joule effect inside the metallic walls
of an RF accelerating component. This technique relies on solving
the 1D heat transfer equation for a thick wall, considering that
the heat sources inside the wall are the ohmic losses produced
by the RF electromagnetic fields penetrating into the metal with
finite electrical conductivity. Furthermore, it is discussed how the
theoretical expressions of this method can be applied to obtain
an approximation to the temperature increase in realistic 3D
RF accelerating structures, taking as an example the cavity of
an RF electron photoinjector and a travelling wave linac cavity.
These theoretical results have been benchmarked with numerical
simulations carried out with a commercial Finite Element Method
(FEM) software, finding good agreement among them. Besides,
the advantage of the analytical method with respect to the
numerical simulations is evidenced. In particular, the model could
be very useful during the design and optimization phase of RF
accelerating structures, where many different combinations of
parameters must be analysed in order to obtain the proper
working point of the device, allowing to save time and speed
up the process. However, it must be mentioned that the method
described in this manuscript is intended to provide a quick
approximation to the temperature increase in the device, which of
course is not as accurate as the proper 3D numerical simulations
of the component.
European Commission
10.13039/501100000780
777431
CompactLight