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Analytical RF Pulse Heating Analysis for High Gradient Accelerating Structures

Daniel González Iglesias; Daniel Esperante; Benito Gimeno; Marçà Boronat; César Blanch; Nuria Fuster-Martínez; Pablo Martinez-Reviriego; Pablo Martín Luna; Juan Fuster


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{
  "inLanguage": {
    "alternateName": "eng", 
    "@type": "Language", 
    "name": "English"
  }, 
  "description": "<p>The main aim of this work is to present a simple<br>\nmethod, based on analytical expressions, for obtaining the temperature<br>\nincrease due to the Joule effect inside the metallic walls<br>\nof an RF accelerating component. This technique relies on solving<br>\nthe 1D heat transfer equation for a thick wall, considering that<br>\nthe heat sources inside the wall are the ohmic losses produced<br>\nby the RF electromagnetic fields penetrating into the metal with<br>\nfinite electrical conductivity. Furthermore, it is discussed how the<br>\ntheoretical expressions of this method can be applied to obtain<br>\nan approximation to the temperature increase in realistic 3D<br>\nRF accelerating structures, taking as an example the cavity of<br>\nan RF electron photoinjector and a travelling wave linac cavity.<br>\nThese theoretical results have been benchmarked with numerical<br>\nsimulations carried out with a commercial Finite Element Method<br>\n(FEM) software, finding good agreement among them. Besides,<br>\nthe advantage of the analytical method with respect to the<br>\nnumerical simulations is evidenced. In particular, the model could<br>\nbe very useful during the design and optimization phase of RF<br>\naccelerating structures, where many different combinations of<br>\nparameters must be analysed in order to obtain the proper<br>\nworking point of the device, allowing to save time and speed<br>\nup the process. However, it must be mentioned that the method<br>\ndescribed in this manuscript is intended to provide a quick<br>\napproximation to the temperature increase in the device, which of<br>\ncourse is not as accurate as the proper 3D numerical simulations<br>\nof the component.</p>", 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "Instituto de F\u00edsica Corpuscular (CSIC-UV)", 
      "@type": "Person", 
      "name": "Daniel Gonz\u00e1lez Iglesias"
    }, 
    {
      "affiliation": "Instituto de F\u00edsica Corpuscular (CSIC-UV)", 
      "@type": "Person", 
      "name": "Daniel Esperante"
    }, 
    {
      "affiliation": "Instituto de F\u00edsica Corpuscular (CSIC-UV)", 
      "@type": "Person", 
      "name": "Benito Gimeno"
    }, 
    {
      "affiliation": "Instituto de F\u00edsica Corpuscular (CSIC-UV)", 
      "@type": "Person", 
      "name": "Mar\u00e7\u00e0 Boronat"
    }, 
    {
      "affiliation": "Instituto de F\u00edsica Corpuscular (CSIC-UV)", 
      "@type": "Person", 
      "name": "C\u00e9sar Blanch"
    }, 
    {
      "affiliation": "Instituto de F\u00edsica Corpuscular (CSIC-UV)", 
      "@type": "Person", 
      "name": "Nuria Fuster-Mart\u00ednez"
    }, 
    {
      "affiliation": "Instituto de F\u00edsica Corpuscular (CSIC-UV)", 
      "@type": "Person", 
      "name": "Pablo Martinez-Reviriego"
    }, 
    {
      "affiliation": "Instituto de F\u00edsica Corpuscular (CSIC-UV)", 
      "@type": "Person", 
      "name": "Pablo Mart\u00edn Luna"
    }, 
    {
      "affiliation": "Instituto de F\u00edsica Corpuscular (CSIC-UV)", 
      "@type": "Person", 
      "name": "Juan Fuster"
    }
  ], 
  "url": "https://zenodo.org/record/5105593", 
  "datePublished": "2021-02-01", 
  "keywords": [
    "RF pulse heating", 
    "thermal analysis", 
    "RF accelerating structures"
  ], 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.1109/TNS.2021.3049319", 
  "@id": "https://doi.org/10.1109/TNS.2021.3049319", 
  "@type": "ImageObject", 
  "name": "Analytical RF Pulse Heating Analysis for High Gradient Accelerating Structures"
}
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