Experimental Research and Work Development on the Helium Ions Linac

Abstract

The paper provides a brief summary of the experimental research carried out at the present time at the materials science complex developed at the NSC KIPT. The main directions for the development of the work carried out have been determined. The complex is based on a linear accelerator of helium ions. The features and advantages of the accelerating structure of the accelerator, which is based on the principle of APF, are described. A technique was de-veloped and irradiation of candidate materials for the divertor and the first wall of the TNR was carried out. The damageability of the irradiated samples could create from 3 to 80 dpa.

COMPARISON OF STRUCTURAL DISRUPTIONS ON THE TUNGSTEN SURFACES WHICH INDUCED BY IRRADIATION OF HELIUM IONS BEAMS WITH ENERGIES 0.12 AND 4 MeV

“…All experimental work were conducted with the use a helium ion beams accelerator [1,2,15,16]. The helium ion beam had the following parameters: pulse current 700 A, pulse length 500 s, average current 0.7 A, repetition frequency 2…5 imp/s, current density (0.15…0.44)•10 13 part/cm 2 .…”

FEATURES OF STRUCTURAL DAMAGES OF SURFACE OF TUNGSTEN AS A RESULT OF IRRADIATION WITH HELIUM ION BEAMS WITH ENERGY 4 MeV

“…The helium ion accelerator was used as a machine for irradiating the surface of tungsten [1,2,14,15]. The operating parameters of the accelerator are such: pulse current 700 A, pulse length 500 s, average current 0.7 A, repetition frequency 2…5 imp/s, current density (0.15…0.44)•10 13 part/cm 2 .…”