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Betatron with a variable orbital radius

A technology of electron cyclotrons and accelerators, which is applied in the direction of magnetic induction accelerators, electrical components, X-ray equipment, etc., and can solve the problems of inaccessibility and high efficiency

Active Publication Date: 2009-09-09
SMITHS HEIMANN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] A disadvantage of known electron cyclotrons is the fact that only a fraction of the electrons injected into the electron cyclotron tube are accelerated to the required terminal energy and thus high efficiencies are not obtained

Method used

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  • Betatron with a variable orbital radius
  • Betatron with a variable orbital radius
  • Betatron with a variable orbital radius

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Embodiment Construction

[0033] figure 1 A cross-sectional view of the schematic structure of a preferred electron cyclotron 1 is shown. It also has a rotationally symmetrical inner yoke consisting of two spaced-apart elements 2a, 2b; four blanks 3a to 3d between the inner yoke parts 2a, 2b, wherein The longitudinal axis of 3d corresponds to the axis of rotational symmetry of the inner yoke; an outer yoke 4 connecting two inner yoke parts 2a, 2b; an annular electron cyclotron arranged between the inner yoke parts 2a, 2b tube 5; two main field coils 6a and 6b and one in figure 1 Control electronics 8 not shown. The main field coils 6a and 6b are provided on the flange of the inner yoke member 2a or 2b. The magnetic field generated thereby passes through the inner yoke parts 2 a and 2 b , the magnetic circuit being closed by the outer yoke 4 . The shape of the inner yoke and / or the outer yoke can be selected by those skilled in the art according to the application, and is different from figure 1 In...

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Abstract

The invention relates to betatron (1), especially in X-ray testing apparatus, comprising a rotationally symmetrical inner yoke consisting of two interspaced parts (2a, 2b), at least one round plate (3a-3d) which is arranged between the inner yoke parts (2a, 2b) in such a way that the longitudinal axis thereof coincides with the rotational symmetrical axis of the inner yoke, an outer yoke (4) connecting the two inner yoke parts (2a, 2b), at least one main field coil (6a, 6b), a toroidal betatron tube arranged between the inner yoke parts (2a, 2b), at least one tune coil (7a-7c) in the region of the at least one round plate (3a-3d), and an electronic control system (8) for controlling a current flow through the tune coil (7a-7c) during the injection phase of the electrons into the betatron tube (5).

Description

technical field [0001] The invention relates to an electron cyclotron with a variable orbital radius, in particular for generating X-rays in an X-ray inspection device. Background technique [0002] The use of X-ray inspection devices is known for the inspection of bulky objects such as containers and vehicles for impermissible contents such as weapons, explosives or smuggled goods. X-rays are generated therein and directed at the object. The x-rays attenuated by the object are measured by means of a detector and analyzed by an evaluation device. Conclusions can thus be drawn about the properties of the object. Such an x-ray inspection device is known, for example, from European patent application EP 0 412 190 B1. [0003] Electron cyclotrons are used to generate X-rays with energies greater than 1 MeV (megaelectron volts) required for testing. This involves particle cyclotrons, in which electrons are accelerated in a circular orbit. The accelerated electron turns to a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H11/00H05H11/04
CPCH05G2/00H05H11/04
Inventor J·贝尔穆特G·戈伊斯G·赫斯U·菲伯克
Owner SMITHS HEIMANN
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