SU1326159A1 - Device for pulsing supply of accelerator - Google Patents

Abstract

This invention relates to a pulsed energy ect5; The purpose of the invention is to improve the weight and size characteristics of the device. The device contains a double forming line. consisting of two identical sections I and 2, a load 3 in the form of an accelerator diode, a low-voltage1 {th current source 4 and a controlled switch 5. Shorting of the input terminal of section I and the output terminal of section 2 on its common terminals and connecting the current source 4 and a controlled switch 5 in parallel with the load 3 allows the use of capacitors, which are 1 times less by 2 times less. The energy intensity of the capacitors of the line is thus reduced fourfold, thus reducing their size and weight. G il.

Description

The invention relates to the field of pulsed power engineering, in particular, to pulse power systems of charged particle accelerators.

The aim of the invention is to improve the weight and size characteristics of the device.

The invention is illustrated in the drawing.

The device contains a double forming line consisting of two identical sections I and 2, in which a load is connected in series with them For the form of an external diode. The input of section 1 is connected to the output of section 2 via a series circuit from a low-voltage current source and its switch 5, which can be used, for example, a magnetically controlled cold cathode thyratron.

The operation of the device is as follows.

In the initial state, the switch 5 does not conduct current. When a pulsed current is supplied from the start-up unit 7 to the winding 6 of the control of the switch 5, the inductors of both sections of the forming line are charged by the current source A b. direction shown by arrows. Upon completion of the charging process, the starting block 7 interrupts the current in the control winding 6 of the switch 5, thereby interrupting the charging circuit. In this case, at the output of the section, and at the input of section 2 of the double forming line, voltage drops occur, the amplitude of which is equal to the rug — the voltage across the load, and the polarity opposite to each other. Spreading along sections 1 and 2 towards their short-circuited ends, the differential drops charge each of the line capacitors to a voltage equal to half the amplitude of the voltage across the load. At a time interval equal to the delay time of the line section calsd, from the short-circuiting of the ends of the sections, the voltage waves are reflected in antiphase, with the result that the double-line capacitors are discharged in series to discharge to zero. The reflected waves reach the load and the formation of a voltage pulse ends there, since resistance of load ECs 3 matched with

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The wave impedances of the sections of the lines f, i.e. .

At the moment of interruption of the current in the charging circuit by the switch 5, at the output of section I and at the input of section 2 of the double forming line, current drops occur, reducing the level of current charging by half. When reflected from short-circuited ends in the phase of a current wave, the current level in the Inductors of the double forming line to successively decreases to zero. Thus, over time, no energy remains in any of the reactive elements in the double forming line, and the process of impulse formation in the load is completed.

Forming line capacitors during pulse formation. . in a load, a voltage is applied, the amplitude of which is half the amplitude of the load voltage versus the full amplitude in the prototype circuit. Therefore, in the proposed device, capacitors calculated for a voltage that is 2 times less than the prototype can be used in the double line forming. The capacitance of the line capacitors is thus reduced by a factor of four, which accordingly reduces their size and weight.

Claims (1)

Claims. An accelerator pulsed power supply device containing a double forming line consisting of the first and second identical sections, each of which has an input, output, and common, with the output terminal of the first section connected to the input terminal, the second section, and between the common terminals of the sections the accelerator , a diode, and a series circuit from the power supply and control, - my switch, excellent - with what, in order to improve. weight and size characteristics, the input terminal of the first section and the output terminal of the second, the sections are shorted to their common, and in series, the included power supply and controlled switch are connected parallel. accelerator diode.