A method for obtaining a proton source

An acquisition method and proton source technology, applied in the field of proton source acquisition, can solve the problems that the cost and structure will not be significantly optimized, the technical difficulty is high, and the price is expensive, etc., achieving low cost, high operational flexibility, and simple production Effect
CN109801730BActive Publication Date: 2020-12-18INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI
Publication Date
2020-12-18

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Abstract

The invention relates to the technical field of neutron spallation, in particular to a proton source obtaining method. The method mainly involves a radioactive source, a light-permeating film and a source supporting device used for supporting the radioactive source and the light-permeating film, wherein the radioactive source adopts an americium-241 radioactive source as an alpha source, a Mylar film is adopted as the light-permeating film, and the source supporting device is used for fixing the alpha source and the Mylar film. The alpha source and the Mylar film are installed on the source supporting device in sequence in the transmitting direction, so that the surface of the Mylar film is parallel to the alpha source; americium-241 generates alpha decay, released alpha particles bombardthe Mylar film, so that carbon-hydrogen bonds in the molecular structure of the Mylar film are broken, and free protons are released. The proton source obtaining method is simple in operation, low incost and high in operation flexibility, the generated proton flux can meet general experiment requirements, the method can be used for generating low-energy (keV) proton beam flux, measuring the sections, interacting with matter, of low-energy protons and calibrating energy of a detector.
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Description

technical field

[0001] The invention relates to the technical field of neutron spallation, in particular to a method for obtaining a proton source. Background technique

[0002] So far, the proton is considered to be a stable and non-decaying particle. In physics, the proton is often used to collide with other particles after being accelerated to near the speed of light in an accelerator. This provides extremely important data for studying the structure of the atomic nucleus. However, the easy way to obtain proton sources has always been a worldwide problem. At present, the proton sources in laboratories are mainly used in particle accelerators to generate proton beams. One method is to use ionized hydrogen to generate protons. In this method of using hydrogen, first, hydrogen is injected into a vacuum chamber (generally called a discharge chamber), and then a high voltage is used to break down the hydrogen to ionize hydrogen molecules into protons; thus, A plasma composed ...

Claims

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