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Electromagnetic wave generating device

A technology for generating devices and electromagnetic waves, applied in electrical components, magnetic induction accelerators, magnetic resonance accelerators, etc., can solve problems such as unstable rotation, difficulty in repeatedly colliding with targets, and limitations in applicable fields

Inactive Publication Date: 2006-11-01
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in this case, as in the case of an electron cyclotron accelerator, it is difficult to switch X-rays with different energies at a high speed, which limits its application field as in the case of an electron cyclotron accelerator.
Moreover, if the storage ring has an acceleration function and is used as a synchrotron device, the energy of the electron beam that has swirled in the acceleration device can be changed, but it is difficult to ensure high-speed switching of energy. In the process of acceleration, the orbit of the electron beam is also a certain orbit, so in order to avoid collision with the target during acceleration, the target must be arranged outside the orbit
In this case, the cyclotron beam does not revolve stably after colliding with the target, as in the case of the electron cyclotron, making it difficult to repeatedly collide with the target.

Method used

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Examples

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Embodiment approach 1

[0020] figure 1 , figure 2 It is a figure which respectively shows the configuration example 1 and the configuration example 2 of the electromagnetic wave generator of Embodiment 1. No matter which example is using the AG (Alternatig Gradient) focused accelerator ( figure 1 According to non-patent literature 2 (H.Tanaka, T.Nakanishi, "DESIGNAND CONSTRUCTION OF A SPIRAL MAGNET FOR A HYBRIDACCELERATOR", Proceedings of the 1st Annual Meeting of Particle Accelerator Society of Japan and the 29th Linear Accelerator Meeting in Japan (August4-6, 2004 , Funabashi Japan), 465p-467p), figure 2 This point is common to Patent Document 2 (Patent Publication No. 2004-296164), and a high-performance electromagnetic wave generator can be realized by performing predetermined control that exhibits its characteristics.

[0021] exist figure 1 Among them, 11 is an electron generating unit that generates electron beams, and 12 is a spiral magnetic pole that sandwiches the electron beam trave...

Embodiment approach 2

[0053] This embodiment is a form in which the degree of expansion in the radial direction of the orbit of the electron beam at the time of incidence is increased compared to the case of the first embodiment. Figure 5 An example of a time-varying model of the biasing magnetic field and the accelerating core magnetic field in this case is shown. In the figure, the parts with the same number and image 3 same as the description. Figure 5 The example of the 1st electron incident is to take the time variation 31 of the biasing magnetic field as a certain example in the whole process. In this case, the accelerated electron beam expands more than image 3 The situation is even bigger. Figure 5 The example of the second incident electrons is an example in which the bias magnetic field is reduced at the time of incident electron beams. In this case, the expansion of the electron beam accompanying the acceleration in the radial direction of the orbit becomes larger than when the ...

Embodiment approach 3

[0055] Embodiment 3 is a mode in which high-speed switching of the energy of generated X-rays is realized by changing the energy of electron beams at high speed without re-incidence of electrons. Image 6 An example of a time-varying model of the biasing magnetic field and the accelerating core magnetic field in this case is shown. Instructions from 31 to 39a in Figures and image 3 same situation. Here, 36a indicates the start time of the electron beam re-acceleration time 43a corresponding to the electron beam acceleration time 38a while indicating the end time of the constant deflection magnetic field control. 41a is not only the end time of the electron beam re-acceleration time 43a, but also the start time of the target re-collision time 44a corresponding to the target collision time 39a. Then, 42a is the end time of the target re-collision time 44a.

[0056] The operation will be described below.

[0057] The process from time 33a to 36a and image 3 The situation i...

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Abstract

A compact and low-cost electromagnetic wave generator in which X-rays having high intensity can be generated and the energy of generated X-rays can rapidly be switched. In an electromagnetic wave generator including a circular accelerator, a deflection electromagnet incorporated in the circular accelerator focuses injected and accelerated electrons, The circular accelerator produces stable electron closed orbits in a region with a predetermined width in the radial direction of the accelerator that are stable during injection and acceleration of electron. A target is arranged across the stable electron closed orbits and a collision region, where a circulating electron beam collides with the target and a non-collision region where a circulating electron beam does not collide with the target produced. Through control of respective patterns of changes with time in the deflection magnetic field, a given electron closed orbit is shifted between the collision and the non-collision regions, thereby generating X-rays.

Description

technical field [0001] The present invention relates to an electromagnetic wave generator for generating electromagnetic waves such as X-rays by electrons swirling while drawing a circular orbit in an accelerator. Background technique [0002] Among the conventional electromagnetic wave generators using a circular accelerator, there is a device using an accelerator (abbreviated as an electron cyclotron accelerator) using the acceleration principle of an electron cyclotron (Betatron) (Non-Patent Document 1 (Accelerator Science (Betatron)). Called Physics Lectures) "Ryo Kamei, Co-authored by Motoyo Kihara" (Maruzen Co., Ltd.) Published on September 20, 2015 (ISBN 4-621-03873-7 C3342). Chapter 4 Electron Cyclotron P39~P43 )), and a device using an electronic storage ring (Patent Document 1 (Patent No. 2796071)). [0003] In an electromagnetic wave generator using an electron cyclotron accelerator, an electron beam incident on the device is accelerated while orbiting with the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H13/08H05G1/52H05H13/00
CPCH01J2235/08H05G2/00H05H6/00H05H11/00
Inventor 田中博文
Owner MITSUBISHI ELECTRIC CORP
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