Neutral generation methods

Abstract

The goal is to provide technology that generates neutrons with energies exceeding 10 MeV. [Solution] A method is provided in which a glass capsule is irradiated with a laser to heat it to over 100 million degrees Celsius to generate neutrons, and an energy of 17 MeV or more is generated during neutron generation, wherein the glass capsule contains tritium powder having one proton and two neutrons, and deuterium powder having one proton and one neutron.

Description

[Technical Field]

[0001] This invention relates to a method for generating neutrons. [Background technology]

[0002] Nuclear fusion power is beginning to attract attention as an alternative to nuclear power. It is said that the aforementioned nuclear fusion power generation requires a large number of neutrons with energies exceeding 10 MeV. One technique for generating the aforementioned high-energy neutrons is to utilize nuclear reactions involving deuterons. For example, one method involves colliding deuterons generated in an accelerator with lithium, and obtaining high-energy neutrons from the resulting nuclear reaction. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Special Publication 2016-534327 [Overview of the project] [Problems that the invention aims to solve]

[0004] The neutron generation technology described above is not simple.

[0005] The problem that this invention aims to solve is to provide a technology for generating neutrons with energies exceeding 10 MeV. [Means for solving the problem]

[0006] The present invention A method in which a glass capsule is irradiated with a laser to heat it to over 100 million degrees Celsius, thereby generating neutrons and generating energy of 17 MeV or more during neutron generation, The glass capsule contains tritium powder having one proton and two neutrons, and deuterium powder having one proton and one neutron. A method for generating neutrons is proposed.

Advantages of the Invention

[0007] According to the present invention, neutrons having an energy exceeding 10 MeV were easily obtained.

Brief Description of the Drawings

[0008] [Figure 1] Schematic diagram of the present invention

Embodiments for Carrying out the Invention

[0009] The present invention is a method for generating neutrons. The method involves irradiating a glass capsule with a laser. The glass is, for example, quartz glass. The capsule has a diameter of, for example, 100 to 2000 μm. The sphericity of the capsule is preferably 99.9% or more. Inside the quartz glass capsule, 3 H (T: Tritium having one proton and two neutrons in its nucleus) and 2 H (D: Deuterium having one proton and one neutron in its nucleus) exist. The 3 H and 2 H are in a solid state. This solid state can be achieved by cooling. When the quartz glass capsule is irradiated with a laser, that is, when the temperature inside the capsule reaches 100 million °C or more (for example, 100 million to 300 million °C) by laser irradiation, a reaction occurs between the 3 H and the 2 H, and 4 He is generated. A 250 J pulsed laser was used as the laser. At this time, one n (neutron) was generated at a rate per one 3 H. And about 17 MeV of energy was generated.

[0010] When expressed by an equation, it is as shown in the following (Equation 1). 3 H + 2 H + laser → 4 He + n (neutron) + about 17 MeV (Equation 1)

[0011] Nuclear power generation utilizes nuclear fission reactions using uranium and plutonium as raw materials. Consequently, the fission products produced after the reaction are radioactive and prone to chain reactions, making control and post-recovery difficult. In contrast, the DT reaction described above simply produces helium (He) from deuterium (D) and tritium (T), which are isotopes of hydrogen. Helium (He) itself is a gas with reusable value. Moreover, since this reaction does not utilize a chain reaction, there is no risk of runaway reaction, making it highly safe. The amount of energy produced is also far greater than that of nuclear fission.

Claims

[Claim 1] A method in which a glass capsule is irradiated with a laser to heat it to over 100 million degrees Celsius, thereby generating neutrons and generating energy of 17 MeV or more during neutron generation, The glass capsule contains tritium powder having one proton and two neutrons, and deuterium powder having one proton and one neutron. Methods for generating neutrons.

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