The accelerator device high-frequency power

 

(57) Abstract:

The invention relates to a high frequency power particle accelerators, particularly to a high frequency power supply resonance accelerators from magnetrons. The technical result of the invention is to increase the coefficient of stabilizing the frequency of the magnetron. In the accelerator to the junction between the generator and the section using a circulator, in which the generator is connected to an input arm of the circulator, the second arm of the circulator is connected resonator section (section with standing wave), to the third arm of the circulator through a phase shifter connected resolutely and consistent load to the fourth shoulder connected resonator having a resonant frequency equal to the frequency of the accelerating section. 1 Il.

The present invention relates to high frequency power particle accelerators, particularly to a high frequency power supply resonance accelerators from magnetrons.

It is also known a device in which for decoupling magnetron oscillator and resonator section applies ferrite circulator. In the device of the magnetron is connected to the first arm of the circulator, resonant acceleration]. The circulator is designed for isolation of the oscillator (magnetron) and high-q section that provides excitation at the operating frequency.

The disadvantage of this device is the lack of stabilization of the frequency of the oscillator due to the complete isolation of the generator and high-q section.

It is also known a device in which for decoupling magnetron generator applies a ferrite circulator. In the device of the magnetron is connected to the first arm of the circulator, the resonant accelerating section to the second arm of the circulator, to the third arm of the circulator is connected to the phase shifter, resolutely and dummy load [2]. When applying chetyrehletnego circulator in the fourth arm of zahratka, providing a full reflection of power. The circulator is designed for decoupling of the generator and sections, and the presence of resolutely in the third arm of the circulator provides a channel for feedback to stabilize the frequency of the oscillator. The coefficient of stabilizing the frequency of the magnetron, defined as the ratio of the variance of the frequency of the generator when operating at a consistent load to the variance of the frequency when the generator is in an RF system, SOS is possible due to the breach of odnochastotnoj excitation of the magnetron.

The disadvantage of this device is the lack of value of the coefficient of stabilizing the frequency of the oscillator due to restrictions on the magnitude of the feedback signal.

The objective of the invention is to increase the ratio of stabilizing the frequency of the magnetron. The technical result is achieved by the fact that the accelerator to the junction between the generator and sections using a circulator, in which the generator is connected to an input arm of the circulator, the second arm of the circulator is connected resonator section (section with standing wave), to the third arm of the circulator through a phase shifter connected resolutely and consistent load to the fourth shoulder connected resonator having a resonant frequency equal to the frequency of the accelerating section.

The drawing shows a functional diagram of the device.

The magnetron 1 is connected to the first arm of the circulator 2, the resonator section 3 to the second arm of the circulator, to the third arm of the circulator 3 is connected to the phase shifter 4, resolutely 5 and harmonized load 6, and the fourth arm of the circulator is connected to the resonator 7, having a resonant frequency equal to the frequency of the accelerating section.

The device works the following is transmitted in the fourth arm of the circulator at the input of the resonator 7.

The cavity 7 has a load factor equal to or higher than the accelerating section 3. The frequency of the resonator 7 is equal to the frequency of the accelerating section 3. In the feedback channel wave reflecting from the two q objects (resonator section 3 and the cavity 7), to the input of the magnetron and provides tightening and stabilizing its frequency. The phase shifter 4 is designed for optimum phase of the reflected wave at the input of magnetron 1. The resonator 7 should work mode negovati to phase foray into the feedback channel had characteristics that provide single-frequency excitation of the magnetron at the operating frequency.

The proposed device allows to increase the coefficient of frequency stabilization by 30 - 50% due to increase in comparison with the prototype of the locking effect of the signal reflected from the two high-q load on the magnetron generator.

Sources of information

1. Lebedev, I. C. Equipment and microwave devices, so 2, M.: Higher school, 1972.

2. Gory H. R. Network for Pulling a Microwave Generator to the Frequency of its Resonant Load - USA patent 3714592, 1973.

Accelerator junction generator and the section using a circulator, in which the generator is connected to the input preteem arm of the circulator through a phase shifter connected resolutely and coordinated load, wherein the fourth shoulder connected resonator having a resonant frequency equal to the frequency of the accelerating section.

 

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