Technique for producing nucleopore membranes by miniature particle accelerator

Abstract

The invention discloses a technique for producing nucleopore membranes by a miniature particle accelerator, belonging to the technical field of nuclear. If the nucleopore membranes are produced by a reactor, mass number and energy dispensability of uranium fission fragment are large, pore sizes of the nucleopore membranes are not uniform, and even blind holes are produced. If a heavy ion accelerator is used for accelerating ion irradiated dielectric membrane of which the mass number is equal to that of the uranium fission fragment, the mass number and the energy are unique, the directivity is good, and the thickness for penetrating through the membranes is large. But the particle accelerator is expensive, and high in running cost. Only few such kind of particle accelerators exist internationally, and the production of the nucleopore membranes is restrained. If the nucleopore membranes are produced by the miniature particle accelerator, the ions are single in form, the energy dispensability is small, and beam directivity is good; and the miniature accelerator is low in production cost and low in running cost. The invention mainly describes the technique for producing the nucleopore membranes by the miniature particle accelerator.

Description

technical field [0001] The use of small particle accelerators to produce nuclear pore membranes belongs to the field of nuclear technology applications, and its products belong to the field of membrane technology. Background technique [0002] Nuclear pore membrane is also called nuclear track etching membrane or nuclear track membrane for short. As early as the 1960s, the United States irradiated polycarbonate, polyester and other dielectric films with fission fragments produced by bombarding uranium targets with neutrons in reactors. produce. However, the mass number and energy dispersion of uranium fission fragments is relatively large. If the process is not well considered, the nuclear pore membrane produced may have uneven pore sizes, or even blind holes (blocked holes), which is just like the current domestic nuclear pore membrane. Some units utilize nuclear reactors to produce like nuclear pore membranes. Subsequently, the former Soviet Union, Germany, France and ot...

AI Technical Summary

Problems solved by technology

However, the cost of accelerators to accelerate ions whose mass number is equivalent to that of uranium fission fragments is very expensive. At present, there are only a handful of accelerators in the world, and it is unlikely that there will be more time for the production of nuclear pore membranes.

Moreover, the operating cost of such an accelerator is very high, at least several thousand yuan per hour

These have certain restrictions on the production of nuclear pore membranes

Images