| Thème(s) : |
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Physique/Physique/Physique des accélérateurs
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| Titre : |
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Positron Options for the Linac-Ring LHeC |
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| Auteur : |
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F. Zimmermann1, O.S. Brüning1, Y. Papaphilippou1, D. Schulte1, P. Sievers1, H.-H. Braun, E.V. Bulyak, M. Klein, L. Rinolfi, A. Variola2, F. Zomer2, V. Yakimenko |
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| Laboratoire : |
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| équipe(s) de recherche : |
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Dept. Accelerateurs |
| Résumé : |
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The full physics program of a future Large Hadron electron Collider (LHeC) requires both pe+ and pe- collisions. For a pulsed 140-GeV or an ERL-based 60-GeV Linac-Ring LHeC this implies a challenging rate of, respectively, about 1.8 *10 15 or 4.4 *10 16 e+/s at the collision point, which is about 300 or 7000 times the past SLC rate. We consider providing this e+ rate through a combination of measures: (1) Reducing the required production rate from the e+ target through colliding e+ (and the LHC protons) several times before deceleration, by reusing the e+ over several acceleration/ deceleration cycles, and by cooling them, e.g., with a compact tri-ring scheme or a conventional damping ring in the SPS tunnel. (2) Using an advanced target, e.g., W-granules, rotating wheel, sliced-rod converter, or liquid metal jet, for converting gamma rays to e+. (3) Selecting the most powerful of several proposed gamma sources, namely Compton ERL, Compton storage ring, co- herent pair production in a strong laser, or high-field undulator radiation from the high-energy lepton beam. We describe the various concepts, present example parameters, estimate the electrical power required, and mention open questions. |
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| Type de publication : |
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Communications avec actes |
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Date de publication
ou d'écriture : |
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2012 |
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| Date de la présentation : |
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23/05/2012 |
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Nom du périodique
Titre de l'ouvrage : |
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Proceedings of IPAC2012 |
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| Audience : |
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non spécifiée |
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| Volume : |
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weppr076 |
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| Page/Article : |
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3108-3110 |
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| Editeur : |
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Joint Accelerator Conferences Website |
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| Nom du colloque : |
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International Particle Accelerator Conference - IPAC'12 |
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| Type de présentation : |
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Poster |
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| Ville du colloque : |
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New Orleans |
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| Pays du colloque : |
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États-Unis |
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| Date du colloque (début) : |
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20/05/2012 |
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| Date du colloque (fin) : |
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25/05/2012 |
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| Identifiant local : |
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LAL/RT 12-13 |
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| Commentaire : |
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ISBN 978-3-95450-115-1 - http://accelconf.web.cern.ch/AccelConf/IPAC2012/papers/weppr076.pdf |
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