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A method for generating a pulsed flux of energetic particles, and a particle source operating accordingly

A technology of high-energy particles and pulse flow, applied in DC voltage accelerators, electrical components, accelerators, etc.

Inactive Publication Date: 2009-08-12
SAGE INNOVATIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

which constitutes a barrier restricting the operation of existing sources

Method used

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  • A method for generating a pulsed flux of energetic particles, and a particle source operating accordingly
  • A method for generating a pulsed flux of energetic particles, and a particle source operating accordingly
  • A method for generating a pulsed flux of energetic particles, and a particle source operating accordingly

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Embodiment Construction

[0045] Referring now to the accompanying drawings, figure 1 A source 10 of particles P according to the invention is given schematically.

[0046] The particles can be of different types, and in reference to Figures 3a to 3c Some specific examples will be mentioned.

[0047] now refer to figure 1 to describe a specific example of a neutron source.

[0048] general description of the source

[0049] figure 1 The source 10 shown in includes the following main parts:

[0050] A neutron tube 110 comprising a chamber filled with low pressure gas (here low pressure means near vacuum pressure, typically in the range of 1-10 Pa) and containing:

[0051] A first electrode 111, which is used to generate the plasma and form a source of plasma ions; this first electrode 111 is also called the "emitting" electrode,

[0052] a second electrode 112, which forms a target from which energetic particles P are generated when the target is impacted by charged particles from the plasma...

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Abstract

A method for generating a pulsed flux of energetic particles comprises the following steps: - initiating an ion plasma at a first electrode (111 ) in a vacuum chamber (110) and allowing said plasma to develop towards a second electrode (112) in said vacuum chamber, - at a time at which said ion plasma is in a transitional state with a space distribution of ions or electrons at a distance from said second electrode, applying between said electrodes a short high voltage pulse so as to accelerate said distributed ions or electrons towards said second electrode, whereby a high-energy flux of charged particles is generated while overcoming the space charge current limit of a conventional vacuum diode, and - generating said energetic particles at said second electrode (112). A particle source is also disclosed. Application in particular to ultra-short pulse neutron generation.

Description

technical field [0001] The invention relates to a method for generating a flow of energetic particles, and an energetic particle source operating according to the method. [0002] The energetic particles may be, for example, neutrons, ions, electrons, x-ray photons, or other types of energetic particles. Background technique [0003] Sources such as neutron sources are known in the art, and one particular known type of neutron source is known as a "neutron tube". [0004] In this type of source, a source of ions is accelerated to high energies to strike a target. Typically a Penning ion source is used. The target is a deuterium D or tritium T chemistry embedded in a metal substrate, typically molybdenum or tungsten. The ions are accelerated to about 100 kV to impinge on the target. Neutrons are produced by D-D or D-T reactions. [0005] The D-T reaction produces neutrons at 14.1 MeV. [0006] The D-D reaction produces neutrons at 2.45 MeV, but its cross-section is abou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H3/06
CPCH05H3/06
Inventor P·蔡
Owner SAGE INNOVATIONS
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