Ion-ion beam combining device

Abstract

The invention provides an ion-ion beam combining device, which includes a magnet system, a high-frequency system, a vacuum system, and an implantation system, and is characterized in that the ion-ion beam combining device also includes a single storage ring, and the single storage ring is set Into 8 figure. The ion-ion combining device of the present invention adopts an 8-shaped storage ring, which can greatly reduce the production cost by using the same beam of ions to collide with each other, and because the ions in the ring are completely naked, there is no interference from extranuclear electrons during the collision process, thus eliminating the background noise.

Description

technical field [0001] The invention relates to the field of ion collisions, in particular to an 8-shaped ion-ion beam combining device. Background technique [0002] Atomic physicists have been trying their best to understand the shell structure of superheavy nuclei. Quantum electrodynamics predicts that the extremely strong Coulomb field excited by superheavy nuclei (Z>173) can stimulate the generation of electron-positron pairs. However, the half-life of superheavy nuclei is very short, and it does not exist in nature. Only by relying on nuclear-nuclear collisions, the atomic nuclei can be brought close to a very small distance (for 238 U+ 238 U, this distance needs to be less than 30fm) to get superheavy nuclei. Related fixed target scattering experiments have been carried out in the laboratory, trying to find the vacuum electron pair emission phenomenon, but all failed. There are two reasons: (1) These scattering experiments use the collision mode of partially str...

AI Technical Summary

Problems solved by technology

However, the half-life of superheavy nuclei is very short, and it does not exist in nature. Only by relying on nuclear-nuclear collisions, the atomic nuclei can be brought close to a very small distance (for 238 U+ 238 U, this distance needs to be less than 30fm) to get superheavy nuclei

Related fixed target scattering experiments have been carried out in the laboratory, trying to find the phenomenon of vacuum electron pair emission, but all have failed

There are two reasons: (1) These scattering experiments use the collision mode of partially stripped ions and fixed targets, and the generated superheavy nuclei have shell electrons around them, and the Pauli blocking effect hinders the generation of vacuum electron pairs; (2) due to the orbital Shielding of electrons, the resonant 1sσ state cannot go deep into the negative continuum energy region

[0003] Using a collider to produce superheavy nuclei is a new way of thinking. There are currently two basic schemes in the world: 1. The MUSES project proposed by RIKEN in Japan. This project is a low-energy collider, and different ions are stored in two rings. , use small-angle collisions to make the collision energy just overcome the Coulomb barrier, realize nuclear fusion, and obtain new nuclides or superheavy nuclei. This project requires two independent storage rings, and the cost is high

In the end, the project was not implemented due to funding problems

2. The co-moving scheme proposed by I.Meshcov uses two storage rings, one large and one small, and ions with high energy and low energy are stored in the two rings respectively, and the two rings have a common straight line In this straight line section, the fast ions chase the slow collision ions. This scheme requires a super-strong solenoid field, which cannot be achieved by the current superconducting technology.

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