The description of the operation of a linear homopolar motor and applications: Illustrating the operation of a linear particle accelerator

Doff, Adriano; Szmoski, Romeu M.

doi:10.1590/1806-9126-RBEF-2015-0025

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Artigos Gerais • Rev. Bras. Ensino Fís. 38 (2) • June 2016 • https://doi.org/10.1590/1806-9126-RBEF-2015-0025 linkcopy

The description of the operation of a linear homopolar motor and applications: Illustrating the operation of a linear particle accelerator

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Abstract

In this work we explored the didatic potential of a linear homopolar motor for the purpose of illustrating the principle of operation of a particle accelerator. In order to establish the operating mechanism of a linear electric motor, we consider an analogy with the description of a rotary homopolar motor and from this we present the operating principles of this device and we establish a theoretical limit on the speed of the linear motor. Assuming experimental results for the speed of the movable element of the system, whose result is in accordance with the theoretical limit, we illustrate the operating principle of a linear particle accelerator (LINAC).

Keywords:
Neodymium magnets; linear electric motor; tracker; particle accelerator

$B_{(j)}$ (T)	$B_{(j + 2)}$ (T)	$B_{(j - 2)}$ (T)	d(cm)
0,13	0,131	0,13	0,0
0,12	0,129	0,123	1,0
0,015	0,034	0,031	2,0
0,0007	0,025	0,022	2,3

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