Open AccessСвойства полиимидной пленки после облучения электронным пучком с дозой 1 GGy
Author(s) -
П.Б. Сергеев,
Н.В. Морозов
Publication year - 2019
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/os.2019.03.47367.282-18
Subject(s) - kapton , polyimide , materials science , foil method , ultimate tensile strength , irradiation , composite material , excimer laser , separator (oil production) , pulse duration , thin film , laser , cathode ray , layer (electronics) , optics , electron , nanotechnology , quantum mechanics , physics , nuclear physics , thermodynamics
AbstractThe results of the performance tests of a three-layer foil separator for a high-current electron gun of an ELA excimer laser are presented. The separator consisted of two layers of thin titanium foil with a polyimide film between them. Such a composition withstood 5630 electron beam pulses with duration of 80 ns and an energy density per pulse of about 9 J/cm^2. In this case, the polyimide film (Dupont Kapton polyimide film) with a thickness of 38 μm was irradiated with a dose of 1 GGy. The initial and induced absorption of this film was measured in the range from 20 to 0.4 μm. The mechanical tensile strength of the irradiated film decreased by 17 times.