dorsal/arxiv
View SchemaSuperconducting H-mode Structures for Medium Energy Beams
| Authors | R. Eichhorn, U. Ratzinger |
|---|---|
| Categories | |
| ArXiv ID | physics/0008066 |
| URL | https://arxiv.org/abs/physics/0008066 |
| Journal | eConf C000821 (2000) THD10 |
Abstract
Room temperature IH-type drift tube structures are used at different places now for the acceleration of ions with mass over charge ratios up to 65 and velocities between 0.016 c and 0.1 c. These structures have a high shunt impedance and allow the acceleration of very intense beams at high accelerating gradients. The overall power consumption of room temperature IH-mode structures is comparable with superconducting (sc) structures up to 2 MeV/u. With the KONUS [1] beam dynamics, the required transversal focusing elements, e.g. quadrupole triplets can be placed outside of multicell cavities, which is favourable for building sc H-mode cavities. The design principles and consequences to the geometry compared to room temperature (rt) cavities will be described. The results gained from numerical simulations show that a sc multi-gap H21(0)-mode cavity (CH-type) can be an alternative to the sc spoke-type or reentrant cavity structures up to beam energies around 150 MeV/u. The main cavity parameters and possible fabrication options will be discussed. [1] U. Ratzinger, Nucl. Intr. Meth., A 415 (1998) 229.
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"abstract": "Room temperature IH-type drift tube structures are used at different places\nnow for the acceleration of ions with mass over charge ratios up to 65 and\nvelocities between 0.016 c and 0.1 c. These structures have a high shunt\nimpedance and allow the acceleration of very intense beams at high accelerating\ngradients. The overall power consumption of room temperature IH-mode structures\nis comparable with superconducting (sc) structures up to 2 MeV/u. With the\nKONUS [1] beam dynamics, the required transversal focusing elements, e.g.\nquadrupole triplets can be placed outside of multicell cavities, which is\nfavourable for building sc H-mode cavities. The design principles and\nconsequences to the geometry compared to room temperature (rt) cavities will be\ndescribed. The results gained from numerical simulations show that a sc\nmulti-gap H21(0)-mode cavity (CH-type) can be an alternative to the sc\nspoke-type or reentrant cavity structures up to beam energies around 150 MeV/u.\nThe main cavity parameters and possible fabrication options will be discussed.\n [1] U. Ratzinger, Nucl. Intr. Meth., A 415 (1998) 229.",
"arxiv_id": "physics/0008066",
"authors": [
"R. Eichhorn",
"U. Ratzinger"
],
"categories": [
"physics.acc-ph"
],
"journal_ref": "eConf C000821 (2000) THD10",
"title": "Superconducting H-mode Structures for Medium Energy Beams",
"url": "https://arxiv.org/abs/physics/0008066"
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