SU679092A1 - Synchrotron magnetic field plane vertex shaper - Google Patents

Description

one

The invention relates to accelerator technology, in particular, to a system for feeding magnets of synchrotrons, which provide a slow output of particles with constant energy due to the formation of a flat portion in a guiding magnetic field.

The known method and device for forming a flat top of the magnetic zero synchronizes its operation with the supply network, in which the electromagnet is shunted by a thyristor key at the current maximum, and to ensure that the accelerator operation period is equal to the supply period, the voltage of the accelerator electromagnet is changed.

It is also known a device containing a resonant circuit, an alternating current power source, a switching source of a thyristor switch I.

This device allows you to form a flat top in a curve such as

the synchronization frequency of the synchrotron magnetic field and synchronize the resonant frequency with the frequency of the mains supply by varying the duration of the flat top at the maximum level of high-frequency pulsations on the flat top.

However, in this device, pulse transformers must be made with the insulation of the windings at full operating voltage. The charging device of the switching power source for switching the thyristor switch should work as a function of voltage variation on the resonant circuit while regulating the acceleration energy of the particles. In addition, the resonant circuit is loaded with additional reactive power for the fall of the voltage E and on the inductance of a pulse of 1x transformers.

The purpose of the invention is to increase the reliability of the device.

This is achieved by the fact that in a device containing an electronic block of

a switch, a thyristor switch, a switch key switching source, in series with a capacitance of a resonant circuit, a saturated choke is turned on; The capacitor and choke are connected to an AC power source and a PoBaiibi shunt by means of a three-crystal switch, the input of a switching source of the switching key through a charging choke is connected to an AC rectifier by an alternating current, and through the thyristor to the primary winding of the separation reactor .

FIG. Figure 1 shows a simplified electrical device of FIG. 2 (a voltage and current diagram at the main points of the circuit. A capacitance 1 of the resonant circuit and a saturable choke 2 through the separation reactor 3. The connection to the alternating-current source 4 is driven by a 5 "thyristor switch. Electromagnet 6 and capacitance 1 form a sequential resonant circuit. The input of a pulsed switching power source 7 via a charging choke 8 is connected via a charging rectifier 9 of an alternating current supply device, and the output through a thyristor 10 with the primary winding of separation reactor 3 One output of the electronic unit 11 synchronization is connected to the control electrode of the key 5, the other output - to the control electrode of the thyristor 10. At the moment pulse 12 on the electromagnet 6 passes from the negative half-wave and positive relative to the anode thyristor key 5, the electronic unit 11 forms pulse 13 to turn off the key 5. The key opens, shunt capacitance 1 and saturating choke 2, and a flat portion is formed in the current of the junction 14. At the time of voltage transfer of the supply network 15, a zero pulse is formed in the electronic synchronization unit 11 through the synchronization unit 11, which triggers a pulse

Nyi source 7 key switching. In the key chain 5, a countercurrent pulse 17 is formed, locking it. After locking the key 5, the resonant circuit

walks on its own oscillation frequency and repeats in the next cycle period.

Switching the saturable throttle in series with the capacitance of the resonant circuit simplifies the circuit and reduces the maximum voltage value on the capacitance of the resonant circuit. The charge of the pulsed AC power source and its coordination with the circuit through separation reactor 3 is provided by auto-

Claims (2)

Mathematical matching of the countercurrent pulse in the shunt key circuit with the specified accelerator mode. Claim device A flat top of a synchrotron magnetic field containing a resonant circuit, an alternating current power source, a switching source of a thyristor switch, characterized in that, in order to increase the reliability of the device, the capacitance of the resonant circuit is connected in series with a saturable choke, and the separation reactor is connected to an AC power source; the input of a pulsed switch source is via a charging choke with It is connected with the charging rectifier of the AC power supply device, and the output through the thyristor with the primary winding of the separation reactor. Sources of information taken into account in the examination 1. USSR author's certificate number 293563, class, H 05 H 13 / O4, published. O6.O9.69. 2. For registration No. 2420187/25, class, H O5 H 13 / O4, 1977, by which the decision to issue the author's certificate was made,