dorsal/arxiv
View SchemaImpedance Calculations of Non-Axisymmetric Transitions Using the Optical Approximation
| Authors | K. L. F. Bane, G. Stupakov, I. Zagorodnov |
|---|---|
| Categories | |
| ArXiv ID | physics/0703188 |
| URL | https://arxiv.org/abs/physics/0703188 |
| DOI | 10.1103/PhysRevSTAB.10.074401 |
| Journal | Phys.Rev.ST Accel.Beams 10:074401,2007 |
Abstract
In a companion report, we have derived a method for finding the impedance at high frequencies of vacuum chamber transitions that are short compared to the catch-up distance, in a frequency regime that (in analogy to geometric optics for light) we call the optical regime. In this report we apply the method to various non-axisymmetric geometries such as irises/short collimators in a beam pipe, step-in transitions, step-out transitions, and more complicated transitions of practical importance. Most of our results are analytical, with a few given in terms of a simple one dimensional integral. Our results are compared to wakefield simulations with the time-domain, finite-difference program ECHO, and excellent agreement is found.
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"abstract": "In a companion report, we have derived a method for finding the impedance at\nhigh frequencies of vacuum chamber transitions that are short compared to the\ncatch-up distance, in a frequency regime that (in analogy to geometric optics\nfor light) we call the optical regime. In this report we apply the method to\nvarious non-axisymmetric geometries such as irises/short collimators in a beam\npipe, step-in transitions, step-out transitions, and more complicated\ntransitions of practical importance. Most of our results are analytical, with a\nfew given in terms of a simple one dimensional integral. Our results are\ncompared to wakefield simulations with the time-domain, finite-difference\nprogram ECHO, and excellent agreement is found.",
"arxiv_id": "physics/0703188",
"authors": [
"K. L. F. Bane",
"G. Stupakov",
"I. Zagorodnov"
],
"categories": [
"physics.acc-ph"
],
"doi": "10.1103/PhysRevSTAB.10.074401",
"journal_ref": "Phys.Rev.ST Accel.Beams 10:074401,2007",
"title": "Impedance Calculations of Non-Axisymmetric Transitions Using the Optical Approximation",
"url": "https://arxiv.org/abs/physics/0703188"
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