SU699944A1 - Feed system of generator of pulsed stream of ionizating radiation - Google Patents

Abstract

THE POWER SUPPLY SYSTEM OF THE GENERATOR IMPULSE FLOW OF IONIZING RADIATION, containing a high-voltage accelerating voltage transformer with an additional secondary winding connected to the ion source of the tube, is different in that, in order to simplify the system to reduce the power consumption of the tube, it will be in a submarine, and a one-way-a-one-ten-one-one-one-one-one-one-one-one-four-five times more should be used. the gap of the ion source tube.

Description

The invention relates to physical instrumentation and can be used in the design of impulse flux generators of ionizing radiation on sealed accelerator tubes.

The known neutron-oscillator circuit on a sealed accelerator tube with a grounded target, in which the ion source of the tube is ignited by a part of an accelerating voltage pulse, whose amplitude is - / N / 160 kV. The division of the accelerating voltage pulse to the value of the ignition voltage is carried out using an ohmic divider. But, since the ion source is electrically connected by one of the arms of this divider with an external power source, the ohmic divider elements must be designed for a voltage not lower than f 160 kV for safe operation of the tube. This leads to an increase in size, a decrease in the reliability of pulsed flow generators of ionizing radiation, using

This circuit includes a tube. In addition, part of the energy of the accelerating voltage pulse is dissipated at the ohmic divider, which increases the power consumption of the generator.

A power supply system for a pulsed neutron generator through a sealed accelerator tube is also known, which contains a high-voltage accelerator voltage transformer .. with an additional secondary winding connected to the ion source of the tube.

The ion source of the tube is ignited by a pulse generated by a non-linear ignition transformer, the primary winding of which is connected to the supply circuit of the ion source in series with an additional. the secondary winding of a high-voltage accelerator transformer. The inclusion of the primary winding of the ignition transformer in the power supply circuit of the ion source leads to additional energy losses and, in addition, with this tube switching circuit, a sufficiently powerful high-voltage accelerator voltage transformer is required to provide fast charging of the ion source of the tube source, which leads to increase the size of the generator. The circuit of the invention is the simplification of the system and the reduction of its energy consumption. This is achieved by the fact that the additional secondary winding is included in the igniting gap of the ion source of the tube. “The drawing shows the electrical circuit of the proposed power supply system. The system contains a sealed accelerator tube 1 (in this case, a neutron one) with a target 2 and a three-electrode ion source, consisting of an anode 3, igniting 4 and cathode 5 electrodes, an ion source supply capacitor 6, a high-voltage accelerating voltage transformer with a secondary two-section 7 and 8 and 9 primary windings, a storage capacitor 10 and a charging choke 11 of the pit circuit; none of the ion source. The accelerating gap of the filled accelerator tube 1 is formed by the target 2 and the cathode 5 electrode of the ion source, the main spark gap of the ion source is formed by the anode 3 and cathode 5 electrodes, the igniting gap is by the ignition 4 and cathode 5 electrodes. Section 7 of the secondary winding of the high-voltage accelerator voltage transformer for limiting the current flowing through the arrester 1-5 between the gap 4-5, and to eliminate the effect of a short-circuited coil, is made with a high resistivity wire. The generator of the pulsed flow of ionizing radiation with the proposed system power supply operates as follows. When the storage capacitor 10 is discharged through the primary winding 9 of the high voltage accelerating voltage transformer, section 8 produces an accelerating voltage pulse that is applied to the accelerating gap 5-2 of the tube J. At the same time, section 7 connected in series with the section 8, a pulse of ignition of an ion source is applied to the igniter electrode 4, a breakdown of the ignition gap 4-5 occurs and the discharge of the capacitor 6 of the ion source of the tube through the main spark gap of the ion source 3-5 is discharged. . The ions produced in this case in the ion source are accelerated in the accelerating gap 5–2 and bombarding the target 2, in which, as a result of the nuclear reaction T (d, n) He, neutrons are formed. The choke 11 prevents the acceleration voltage pulse from penetrating into the external supply circuits. The required amplitude of the ignition pulse of the ion source and the time delay between the onset of the accelerating voltage pulse and the moment of operation of the ion source are ensured by appropriately selecting the number of turns of section 7 of the secondary winding of the high-voltage accelerating voltage transformer. The proposed power supply system of the pulse-induced ionizing radiation generator makes it possible to reduce the overall dimensions of the generator, reduce its power consumption, and simplify its design and layout.

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Claims (1)

GENERATOR POWER SYSTEM PULSE IONIZING RADIATION FLOW, containing a high-voltage accelerating voltage transformer with an additional secondary winding connected to the ion source of the tube, characterized in that, in order to simplify the system and reduce its energy consumption, the additional secondary winding is included in the ignition gap of the ion source of the tube.