Apparatus for the generation of low-energy X-rays

A technology of X-ray and electron emission, which is applied in the parts of X-ray tube, X-ray tube, X-ray tube window, etc., can solve the problem of reducing the operating life of the system

Inactive Publication Date: 2015-11-04
ENXRAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Existing 'soft' X-ray generator systems, such as that disclosed in GB 2444310A, have a number of disadvantages which are at least partly caused by the arrangement of the cathode and anode electrodes and the arcing that occurs between them
Arcing between the electrodes and the resulting corrosion of the electrodes can lead to a reduction in the operating life of the system

Method used

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  • Apparatus for the generation of low-energy X-rays
  • Apparatus for the generation of low-energy X-rays
  • Apparatus for the generation of low-energy X-rays

Examples

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Embodiment Construction

[0053] The present examples demonstrate the best mode known to the applicants for practicing the invention. However, they are not the only way to achieve this.

[0054] OVERVIEW OF THE CURRENT PREFERRED EMBODIMENT

[0055] figure 1 An X-ray generator 12 is shown comprising a gas-filled flash X-ray tube with an inductive energy storage for sterilizing products such as plastic medical supplies. The emitter head 13 of the X-ray tube comprises a cold cathode 1 made of a highly transparent metal grid or mesh, and an anode 2 made of bulk metal energized by short pulses of high voltage. Electrons emitted by the grid cathode 1 strike the metal anode 2 and generate characteristic and bremsstrahlung X-ray radiation from the emitting surface 14 of the anode 2 . X-ray radiation passes through the cathode grid 1 and irradiates the item or items to be sterilized.

[0056] The electrically insulating (preferably ceramic) separator 4 provides a means to avoid shorting or arcing of the ano...

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Abstract

An X-ray source for producing soft X-rays, the X-ray source comprising: a cathode having an electron-emitting structure supported by a support structure, the electron-emitting structure being at least partially transparent to X-rays within a region bounded by the support structure;an anode having an X-ray emitting surface parallel to the electron-emitting structure of the cathode; and an electrically insulating spacer arranged between the anode and the cathode;wherein the electron-emitting structure of the cathode and the X-ray emitting surface of the anode are arranged such that, in use, the electron-emitting structure is operable to bombard the anode with electrons, causing X-rays to be emitted from the X-ray emitting surface and to pass through the cathode; and wherein the insulating spacer is arranged between the anode and the support structure of the cathode and projects beyond the support structure, across part of the anode,into the said region.

Description

technical field [0001] The invention relates to a device for generating X-rays. It is particularly suitable for, but not limited to, low energy X-ray generators for sterilizing medical articles, pharmaceutical products, or packaging for food or beverages. Other possible applications are discussed below. Background technique [0002] X-ray generators are commonly used in manufacturing or packaging facilities for sterilizing the packaging of medical items, pharmaceutical products, or food or beverages. [0003] In these applications (such as sterilizing packaging), the item to be sterilized is conventionally exposed to X-ray radiation from a radioactive source (such as radioactive cobalt). This radiation includes "hard" X-rays, ie, radiation with high energy (measured into several megaelectronvolts (eV)). [0004] "Hard" X-rays are usually produced by the process of radioactive decay, in which an atomic nucleus undergoes a transition to a different element in the periodic t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J35/06H01J35/18H01J35/12
CPCH01J35/06H01J35/12H01J35/18H01J35/064A61L2/082G01N23/02H01J2235/06H01J2235/08H01J2235/18
Inventor 尤里·乌达洛夫谢尔盖·米季科
Owner ENXRAY
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