Abstract

This paper presents the results of the investigation of the propagation of an electron beam in the high-pressure gas compositions (50, 300, and 760 Torr): sulfur hexafluoride and hydrogen, sulfur hexafluoride and nitrogen, sulfur hexafluoride and argon. The experiments have been performed using the TEA-500 laboratory accelerator. The main parameters of the accelerator are as follows: an accelerating voltage of 500 kV; an electron beam current of 10 kA; a pulse width at half maximum of 60 ns; a pulse energy of 200 J; a pulse repetition rate of up to 5 pulses per second, a beam diameter of 5 cm. The pulsed electron beam was injected into a 55 cm metal drift tube. The drift tube is equipped with three reverse-current shunts with simultaneous detecting of signals. The obtained results of the investigation make it possible to conclude that the picture of the processes occurring in the interaction of an electron beam in the high-pressure gas compositions is different from that observed in the propagation of the electron beam in the low-pressure gas compositions (1 Torr).

Highlights

  • In Russia, especially in Tomsk, the particle accelerators of different types have been developed and implemented in technological processes [1,2,3,4]

  • The important factor which constrains the development of particular technological processes in these fields is the necessity to modify the physical model of the interaction of the pulsed electron beams with the matter in a gas phase, the model being supported by the experimental data of the processes which occur in the interaction of such beams with model objects in a gas phase, and with the objects with the complex chemical compound, which are the basic objects in the technological processes

  • During the propagation of the electron beam in sulfur hexafluoride, the charge of the electrons reached the back flange of the drift tube is 98 μC, and the charge of the electrons fallen on the walls of the drift tube is 293 μC, respectively

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Summary

Introduction

In Russia, especially in Tomsk, the particle accelerators of different types have been developed and implemented in technological processes [1,2,3,4]. Having many advantages the DС accelerators and the linear accelerators have a huge disadvantage, namely, a high cost, which is the result of dc high voltage application, as well as high vacuum diodes (10–7 Torr). The important factor which constrains the development of particular technological processes in these fields is the necessity to modify the physical model of the interaction of the pulsed electron beams with the matter in a gas phase, the model being supported by the experimental data of the processes which occur in the interaction of such beams with model objects in a gas phase, and with the objects with the complex chemical compound, which are the basic objects in the technological processes

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