Abstract
The criterion of the condensed explosive ignition by the electron beam, which takes into account Gaussian distribution of electron density along the beam radius, has been obtained. It has been shown that radial heat removal of the absorbed energy leads to the increase in critical ignition energy if the effective track length of electrons in a solid is commensurate with the beam radius. The critical energy of PETN initiation by the electron beam has been calculated.
Highlights
The criterion of condensed explosive ignition by the short-duration electron beam was determined in the article [1]
The criterion was obtained on conditions that the rate of the chemical reaction on the border of the reaction layer is е times as small as the rate of the chemical reaction at the maximum of electron beam absorption, and the heat gain rate as a result of the chemical reaction in the solid Q is to exceed the rate of heat removal from the reaction layer deep into the solid Q [2]
To estimate the critical energy of explosive ignition by the electron beam it is necessary to know at what electron energy the track length of electrons is commensurate with the beam radius as in this case radial heat removal from the absorption area needs to be taken into consideration [3]
Summary
The criterion of condensed explosive ignition by the short-duration electron beam was determined in the article [1]. To estimate the critical energy of explosive ignition by the electron beam it is necessary to know at what electron energy the track length of electrons is commensurate with the beam radius as in this case radial heat removal from the absorption area needs to be taken into consideration [3]. We assume the distribution of intensiveness along the beam cross-section to have Gauss shape [4]
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