JPH1167112A - Gyrotron controller - Google Patents

Abstract

(57) [Summary] [Problem] To separately install power supplies such as a body power supply and an anode power supply and individually control the power supply in various operation modes,
Provided is a gyrotron control device capable of performing modulation without changing the energy of a high-frequency output by modulating an anode power supply, and having high operation reliability and improved plasma measurement efficiency. A gyrotron control device according to the first aspect of the present invention reduces a thermal load on a collector by applying a voltage for decelerating an electron beam between a high-frequency oscillator and a collector, and simultaneously reduces an energy of the electron beam. In a gyrotron control device that collects power in a power supply unit to increase overall efficiency, a collector power supply 27, a body power supply 26, an anode power supply 25, and a heater power supply 23 are provided independently, and a gyrotron control circuit 28 that controls these power supplies is provided. The operation mode of the TRON 1 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gyrotron control device for controlling the operation of a gyrotron used in an electron cyclotron resonance heating device for heating a fusion plasma, which is a fusion device.

[0002]

2. Description of the Related Art A gyrotron is used as a high-power high-frequency radio frequency generator in an electron cyclotron resonance heating apparatus for heating a fusion plasma in a nuclear fusion apparatus. As shown in the schematic configuration diagram of FIG. 6, in the gyrotron 1, an electron gun portion 5 constituted by a cathode electrode 3, an anode electrode 4, and the like at one end of a vacuum vessel 2 supports insulating spacers 6, 7 each also serving as a vacuum boundary. It is installed by.

The body 8 connected to the electron gun 5 is composed of a cavity resonator 9 of a high-frequency oscillator, a mode converter 10 and a mirror 11, and the body 8 further includes
A collector unit 15 having a movable mirror 13 and an output window 14 is provided via an insulating spacer 12 also serving as a vacuum boundary of the vacuum container 2. A first superconducting magnet 16 is arranged around the electron gun section 5 and a second superconducting magnet 17 is arranged around the cavity 9 so that these first and second superconducting magnets 16 and 16 are arranged.
17 is housed in a heat-insulated vacuum container 18.

As shown in the block diagram of FIG. 7, a power supply and a control circuit of the gyrotron are provided between the cathode electrode 3 of the gyrotron 1 and the body 8 by a first gyrotron.
The power supply 19 is connected and a voltage is applied. A first resistor 19 connected in series with the first power supply 19 is connected to the anode 4.
20 and a voltage divided by the second resistor 21.

Further, the cathode electrode 3 and the collector section
A voltage is applied from the second power source 22 to the heater 15a of the cathode electrode 3 between the first power source 19 and the second power source 22 and the heater power source 22.
23 are all controlled by the control circuit 24. Each of the power supplies 18, 19, 22, and 23 is supplied as a DC power to each unit such as each electrode of the gyrotron 1. Generally, the DC power is supplied from an AC power supply to an AC / DC converter (not shown). It is obtained by a certain thyristor converter.

The operation of the gyrotron 1 is as follows.
The cathode electrode 3 emits thermoelectrons by being heated by the heater power supply 23 via the heater 3a. The thermoelectrons are supplied from the first power supply 19 and the first resistor 20 to the cathode electrode 3.
An electron beam is formed by a potential difference applied between the first superconducting magnet 16 and the anode electrode 4.
Due to the axial magnetic field formed by the above, the laser beam travels along the line of magnetic force while rotating and enters the cavity resonator 9.

The second beam necessary for focusing of the electron beam is
The axial magnetic field generated by the superconducting magnet 17 increases from the electron gun section 5 to the cavity resonator 9 by the second superconducting magnet 17 and becomes maximum in the cavity resonator 9.

When the electron beam having increased kinetic energy passes through the cavity 9 due to the output voltage of the first power supply 19 and the voltage and magnetic field generated across the second resistor 21, Resonating with the electric field in the trunk resonator 9,
There is a portion where the turning motion is decelerated by the electric field, and the decelerated energy is converted into electromagnetic waves. This electromagnetic wave is transmitted to the mode converter 10 connected to the cavity resonator 9 and the mirror 1.
1. Further, it is transmitted to the outside as high frequency through the movable mirror 13 and the output window 14.

The electron beam having undergone energy conversion in the gyrotron 1 is caused by a potential difference between the collector 15 and the body 8 applied by the second power supply 22.
The remaining kinetic energy collected by the collector unit 15 is thermally processed. Usually, the output power of the second power supply 22 is set smaller than the output of the first power supply 19, and the energy of the electron beam corresponding to the difference voltage is recovered.

As described above, in the gyrotron control device, the first power supply 19, the second power supply 22, and the heater power supply 23
Is controlled to drive the gyrotron 1 to transmit a high frequency to the outside. In recent years, with the progress of development, it has become possible to output a long pulse at a frequency of 100 GHz or more.

When the gyrotron 1 is used for fusion plasma heating of a fusion device, the output window
From 14, a high-frequency wave is propagated by a transmission system (not shown), and is incident on a fusion device (not shown). When the gyrotron 1 is operated, the gyrotron 1 and other parts of the carrying-out system to the fusion device are subjected to aging and a pulse for intermittently outputting a high-frequency wave according to the operation state of the fusion device. Operation and operation for continuous output are required.

[0012]

In the gyrotron control device, the control circuit 24 includes the first power supply 19 and the second power supply.
By controlling the gyrotron 1 and controlling the heater power supply 23, the gyrotron 1 is appropriately operated to transmit a high frequency.
It is becoming possible to output a long pulse of about 10 S at the above frequency. In recent years, a method of modulating (modulating) a high-frequency output from the gyrotron 1 has been reviewed in order to efficiently perform plasma measurement in a nuclear fusion device.

However, in the conventional gyrotron control device, when modulating the high frequency output, the output of the first power supply 19 is modulated in order to modulate the voltage applied to the anode electrode 4.

However, the first power supply 19 is a single power supply,
Since the power supply of the anode electrode 4 and the power supply of the body portion 8 are shared, when the voltage (anode voltage) applied to the anode electrode 4 is modulated as described above, the output voltage that simultaneously defines the energy of the electromagnetic wave is modulated. Thus, the voltage (body voltage) to the body 8 by the first power supply 19 and the second resistor 21 is also modulated.

For this reason, the high-frequency energy, which is the electromagnetic wave output from the gyrotron 1, also changes due to the change in the potential difference between the cathode electrode 3 and the anode electrode 4, so that the efficiency in performing the plasma measurement is increased. Was reduced.

An object of the present invention is to provide a power supply such as a body power supply and an anode power supply independently,
It is an object of the present invention to provide a gyrotron control device that can be individually controlled in various operation modes to perform modulation without changing the energy of a high-frequency output when modulating an anode power supply, and has high operation reliability and improved plasma measurement efficiency.

[0017]

In order to achieve the above object, a gyrotron control device according to the first aspect of the present invention comprises:
In the gyrotron controller, which applies a voltage between the high-frequency oscillator and the collector to decelerate the electron beam to reduce the thermal load on the collector and simultaneously collects the energy of the electron beam in the power supply to increase the overall efficiency, And a body power supply, an anode power supply, and a heater power supply are provided independently of each other, and a control circuit for controlling these power supplies is provided with a gyrotron operation mode.

Since the power supply for each electrode in the gyrotron is independent for each electrode, the overall control in the control circuit becomes easy, the degree of freedom of individual control is increased, the power supply configuration is simplified, and various operation modes are provided. Thus, appropriate operation control can be performed for the gyrotron and the fusion device. Further, by modulating the anode power supply, high-frequency modulation can be performed without changing the output energy, so that the efficiency of plasma measurement is improved.

A gyrotron control apparatus according to a second aspect of the present invention is characterized in that, in the first aspect, the operation modes of the gyrotron provided in the control circuit are a pulse operation mode and a continuous operation mode. In the control circuit, the operation of high frequency injection by the gyrotron for plasma heating in the fusion device is easily controlled in accordance with an external signal or an internal signal from the fusion device by a preset pulse operation mode and a continuous operation mode. Can be.

A gyrotron control device according to a third aspect of the present invention is characterized in that, in the first aspect, the operation modes of the gyrotron provided in the control circuit are a pulse aging operation mode and a continuous aging operation mode. . By operating the gyrotron in accordance with the preset pulse aging operation mode and continuous aging operation mode in the control circuit, aging adjustment for the gyrotron and the delivery system can be easily performed.

A gyrotron control device according to a fourth aspect of the present invention is characterized in that, in the first aspect, the control circuit controls the body power supply to rise earlier than the anode power supply. During operation of the gyrotron, only the electron beam is extracted from the cathode electrode by starting up the body power supply faster than the anode power supply,
An abnormal operation in which high-frequency oscillation is not performed is prevented.

A gyrotron control device according to a fifth aspect of the present invention is the gyrotron control device according to the first aspect, wherein the collector power supply is operated continuously in the pulse operation mode of the gyrotron provided in the control circuit. By continuously operating the collector power supply during the pulse operation of the gyrotron, the collector voltage does not vary regardless of the presence or absence of the collector voltage to the collector section, so that a stable high-frequency output can be obtained.

In the gyrotron control apparatus according to the present invention, in the gyrotron provided in the control circuit, in the pulse operation mode of the gyrotron, the collector voltage is stopped by turning off the body power supply and the anode power supply. And stops after the electron beam disappears.

The collector voltage is stopped during the pulse operation later than when the body power supply and the anode power supply are stopped, and the operation is performed after the electron beam in the gyrotron is extinguished. Therefore, a current is supplied to the body power supply having a relatively long discharge time constant. The abnormal phenomenon of flowing in does not occur.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. Note that the same components as those of the above-described related art are denoted by the same reference numerals, and detailed description thereof will be omitted. The first embodiment relates to claim 1, and as shown in the block diagram of FIG.
A gyrotron 1 having a cathode 3 and an anode 4, a body 8 and a collector 15 provided in a vacuum vessel 2.
And a separately provided heater power supply 23 and anode power supply
25, a body power supply 26, a collector power supply 27, and a control circuit 28.

The heater power supply 23 is connected to the cathode electrode 3 and the heater 3a, and the anode power supply 25 is connected to the cathode electrode 3 and the anode electrode 4 and to the body power supply 26.
Is connected to the anode electrode 4 and the body 8. Further, a collector power supply 27 is connected to the cathode electrode 3 and the collector section 15, and a control circuit 28 is connected to the heater power supply 23.
And anode power supply 25, and body power supply 26 and collector power supply 27
Is connected to

The control circuit 28 controls the independent power supplies and has a control system such as various operation modes for the gyrotron 1.

Next, the operation of the above configuration will be described. Since the anode power supply 25 and the body power supply 26 are provided independently and can be arbitrarily controlled collectively by the control circuit 28, by modulating the anode power supply 25, a high-frequency Modulation can be easily performed.

Also, at the time of this high-frequency modulation, the body voltage to the body section 8 is stably applied from the body power supply 26 irrespective of the modulation of the anode power supply 25, so that the output energy may change at the time of high-frequency modulation. In addition, the plasma heating by the stable operation of the gyrotron 1 makes it possible to operate the fusion device with high reliability.

Further, according to the control circuit 28, the heater power supply 23 and the anode power supply 25, and the body power supply 26 and the collector power supply 27 can be independently and collectively controlled in an arbitrary operation mode. Therefore, appropriate operation control and plasma measurement in the fusion device together with the gyrotron 1 can be facilitated. Also, the control circuit
It is possible to simplify the system configuration of the gyrotron control device, for example, by unitizing each power supply such as 28.

The second embodiment relates to claim 2, wherein
The description of the same components as those in the first embodiment will be omitted, and different portions will be mainly described. In the gyrotron control device shown in FIG. 1, the high frequency oscillated by the gyrotron 1 is propagated by a transmission system (not shown), incident on the fusion device, and operated for fusion plasma heating.

The control circuit 28 has a pulse operation mode of the gyrotron 1 shown in the time chart of FIG. 2 and a continuous operation mode of the gyrotron 1 shown in the time chart of FIG.

Next, the operation of the above configuration will be described. As shown in FIG. 6, the high frequency oscillated by the gyrotron 1 is output from the output window 14 and is incident on the fusion device by a transmission system (not shown) to perform fusion plasma heating.

In the control circuit 28, a repetition time (Tc) 30 in the master pulse 29 for internal synchronization and an incident start signal 31 and an incident end signal 32 by external synchronization generated from the operation state of the fusion device and the like are used. Operation control is also performed. Accordingly, when the voltage is applied to the collector 15, the body 8 and the anode 4 of the gyrotron 1, the collector power 27 and the body power 26
And the anode power supply 25 can be individually and arbitrarily controlled.

First, in the case of the operation mainly for adjusting the long pulse output of the gyrotron 1, the pulse operation mode shown in the time chart of FIG. 2 is used. According to this, the thyristor converter (THY) of the collector power supply 27 is turned on after the delay time (Tth) 33 by the incident start signal 31 by the external synchronization together with the master pulse (internal synchronization) 29 and the predetermined voltage as the collector voltage is obtained. Generates voltage.

Further, after a delay time (Tg) 34, for example, a GTO (Gate Turn-Off Thyristor) which is a switching element for supplying the output voltage of the collector power supply 27 to the collector section 15
) Is turned on, a collector voltage is applied to the collector section 15 from the collector power supply 27.

When the collector power supply 27 (GTO) is turned on,
The inverter of the body power supply 26 becomes O after the delay time (Tb) 35.
N, and the inverter of the anode power supply 25 is turned on after the delay time (Ta) 36. From this result, the collector
Since a predetermined voltage is applied to 15, body portion 8, and anode electrode 4, respectively, gyrotron 1 oscillates and a high frequency is output.

Further, the body power supply
The ON of the inverter 26 and the inverter of the anode power supply 25 are completed, but the inverter of the anode power supply 25 is ON during the anode power output width (Tp) 37,
The ON state of the thyristor converter (THY), which is the collector power supply 27, continues continuously.

Here, GT in the collector power supply 27
The ON of O continues from the incident end signal 32 to AmS, which is the time during which the electron beam disappears in the gyrotron 1. Generally, when the body power supply 26 and the anode power supply 25 are stopped, the electron beam takes about several tens of milliseconds. Disappears.

Thereafter, the GTO of the collector power supply 27 and the body power supply
O of 26 inverters and inverter of anode power supply 25
N and OFF are repeated in the same manner as the previous time, and the pulse operation in the gyrotron 1 for the fusion plasma heating of the fusion device is appropriately performed.

Next, in the case of the operation in which the continuous output adjustment of the gyrotron 1 is mainly performed, the continuous operation mode shown in the time chart of FIG. 3 is used. According to this, the repetition time (Tc) 30 in the master pulse (internal synchronization) 29
Regardless of the above, at startup, the thyristor converter (THY), which is the collector power supply 27, is turned on after the delay time (Tth) 33, and then the GTO of the collector power supply 27 is turned on after the delay time (Tg) 34. .

Thereafter, the inverter of the body power supply 26 is turned on after a delay time (Tb) 35, and the anode power supply 25
Turn on after the delay time (Ta) 36. After that, the ON state of the thyristor converter, which is the collector power supply 27, the GTO of the collector power supply 27, and the inverter of the body power supply 26 is continued, whereby the gyrotron for the fusion plasma heating of the fusion device is maintained. One continuous operation is appropriately performed.

The third embodiment relates to claim 3, wherein
The description of the same components as those in the first embodiment will be omitted, and different portions will be mainly described. In the gyrotron control device shown in FIG. 1, this is a case of operation control in which the control circuit 28 performs aging adjustment of the gyrotron 1 and the carry-out system.

The control circuit 28 has a pulse aging operation mode shown in the time chart of FIG. 4 and a continuous aging operation mode shown in the time chart of FIG.

Next, the operation of the above configuration will be described. First, in the case of pulse aging adjustment for the gyrotron 1 and the like, the pulse aging operation mode shown in the time chart of FIG. 4 is used. According to this, the thyristor converter (THY) of the collector power supply 27 is turned on by the master pulse (internal synchronization) 29 to output a predetermined collector voltage. Thus, after adding the delay time (Tth) 33 and the delay time (Tg) 34, the GTO of the collector power supply 27 is turned on, and the collector voltage is applied to the collector unit 15.

After the GTO of the collector power supply 27 is turned on, the inverter of the body power supply 26 turns on after a delay time (Tb) 35, and the inverter of the anode power supply 25 turns on after the delay time (Ta) 36. The ON state of the inverter of the anode power supply 25 continues for the anode power supply output width (Tp) 37. Similarly, the ON state of the inverter of the body power supply 26 continues until the end of the anode power supply output width (Tp) 37. Continue.

However, the thyristor converter (THY) of the collector power supply 27 and the GTO of the collector power supply 27 are turned on.
The state continues regardless of the repetition time (Tc) 30 of the master pulse (internal synchronization) 29. Therefore,
The heater power supply 23 and the collector power supply 27 are operated continuously, while the body power supply 26 and the anode power supply 25 are operated again by the next master pulse 29 after the repetition time (Tc) 30, and thereafter, this operation is repeated.

That is, in the subsequent repetition, the inverter of the body power supply 26 is turned ON after the delay time (Tth) 33, the delay time (Tg) 34 and the delay time (Tb) 35 are added, and the anode power supply 25 is turned off. The inverter is turned on after a delay time (Ta) 36 longer than this, and all of them continue to the anode power supply output width (Tp) 37. Thereby, appropriate pulse aging adjustment is performed on the gyrotron 1 and the like.

Next, in the case of an operation in which the main purpose of the gyrotron 1 is continuous aging adjustment, the continuous aging operation mode shown in the time chart of FIG. According to this, the thyristor converter (THY) of the collector power supply 27 is turned on by the master pulse (internal synchronization) 29, and after adding the delay time (Tth) 33 and the delay time (Tg) 34, the collector power supply 27 GTO turns ON.

The GTO of the collector power supply 27 is turned on.
After that, the inverter of the body power supply 26 has a delay time (T
b) Turns on after 35, and the inverter of the anode power supply 25 turns on after the delay time (Ta) 36 and continues for the anode power supply output width (Tp) 37. However, the ON state of the thyristor conversion device (THY) of the collector power supply 27, the GTO of the collector power supply 27, and the inverter of the body power supply 26 continues regardless of the repetition time (Tc) 30 of the master pulse (internal synchronization) 29. I do.

Therefore, the heater power supply 23 and the collector power supply 27,
And the body power supply 26 is operated continuously, but the anode power supply 25 is operated again by the next master pulse 29 after the repetition time (Tc) 30 and this operation is repeated thereafter. And appropriate continuous aging adjustment is performed.

The fourth embodiment relates to claim 4 and is intended to prevent an abnormal operation in the gyrotron 1. The description of the same components as those in the first to third embodiments will be omitted. The explanation focuses on the different parts. In the gyrotron control device shown in FIG. 1, the heater power supply 23 and the anode power supply 25, and the body power supply 26 and the collector power supply 27 are provided independently, and the respective power supplies can be integrally controlled by the control circuit 28. It has a configuration.

Also, as shown in the respective operation modes of FIGS. 2 to 5, the body power supply 26 is configured to start up earlier than the anode power supply 25. That is, the timing of turning on the anode power supply 25 for applying the anode voltage to the anode electrode 4 is set after the body power supply 26 is turned on.

Next, the operation of the above configuration will be described. In the gyrotron 1, the cathode electrode 3 is heated by the heater power supply 23 and the heater 3a.
It is assumed that a voltage is applied only from the anode power supply 25 to the anode electrode 4 with no voltage applied to the body 8 and the collector 15.

In this case, the thermoelectrons emitted from the cathode electrode 3 are extracted as an electron beam due to the anode voltage at the anode electrode 4. However, since no voltage is applied to the body portion 8 and the collector portion 15, , The gyrotron 1 does not oscillate, and therefore an abnormal state occurs in which a high-frequency output wave cannot be obtained.

However, by turning on the anode power supply 25 for applying the anode voltage to the anode electrode 4 after the body power supply 26 is turned on, the gyrotron 1 performs a normal oscillating operation from the start. Thus, an abnormal operation in which only the electron beam is extracted from the cathode electrode 3 as described above is prevented, and the stability of the gyrotron 1 and the soundness of the operation of the nuclear fusion device are improved.

The fifth embodiment relates to claim 5 and is for stabilizing the output of the gyrotron 1. The same components as those of the first to third embodiments are described below.
The description will be omitted, and different parts will be mainly described.

In the gyrotron control device shown in FIG. 1, the heater power supply 23 and the anode power supply 25, and the body power supply 26 and the collector power supply 27 are provided independently.
The configuration is such that each power supply can be totally controlled by the control circuit 28. Further, as shown in the pulse operation mode of FIGS. 2 and 4, the thyristor converter (not shown), which is the collector power supply 27, is operated continuously.

In other words, a collector power supply 27 for applying a voltage to the collector section 15 generally uses a thyristor converter, but further uses a GTO as a switching element for the collector voltage applied from the collector power supply 27 to the collector section 15. I have. Therefore, even if the thyristor converter as the collector power supply 27 is continuously operated, the collector voltage is not applied to the collector unit 15 unless the GTO is turned on.

Next, the operation of the above configuration will be described. In the case of the pulse operation and the pulse aging operation in the gyrotron 1, a pulsed intermittent collector voltage is applied to the collector unit 15.

At this time, when the thyristor converter of the collector power supply 27 is turned on and off in accordance with the operation of the GTO of the switching element, the thyristor converter turns the GT on.
There is a problem that the stability of the high frequency output from the gyrotron 1 is affected since the output is output via O and the collector voltage applied to the collector unit 15 varies.

However, the thyristor converter of the collector power supply 27 is operated continuously, and the GTO is operated only when the collector voltage is applied to the collector section 15 in a pulsed manner, so that the collector section 15 has no variation. A collector voltage is supplied. Thereby, since the high frequency output from the gyrotron 1 can be kept stable, the stability of the operation of the fusion device together with the gyrotron 1 is improved.

The sixth embodiment relates to claim 6 and is intended to prevent an abnormal phenomenon at the time of pulse operation in the gyrotron control device. The same components as those in the first to third embodiments are described below. The description will be omitted, and different parts will be mainly described. In the gyrotron control device shown in FIG. 1, the heater power supply 23 and the anode power supply 25, and the body power supply 26 and the collector power supply 27 are provided independently, and the respective power supplies can be integrally controlled by the control circuit 28. It has a configuration.

As shown in the pulse operation mode of the gyrotron 1 in FIG. 2, the collector voltage applied to the collector section 15 is controlled by the body power supply 26 and the anode power supply 25.
Is stopped, and after AmS when the electron beam is extinguished in the gyrotron 1, the gyrotron 1 is stopped.

Next, the operation of the above configuration will be described. The collector power supply in the gyrotron controller
27, the body power supply 26, and the anode power supply 25 have different discharge time constants. Therefore, when the collector power supply 27, the body power supply 26, and the anode power supply 25 are simultaneously stopped during the pulse operation, the voltage of the collector unit 15 first becomes 0 V, and therefore, a current flows into the body power supply 26 having a long discharge time constant. There was a problem that occurred.

However, after a lapse of the time (AmS) when the electron beam in the gyrotron 1 disappears from the stop of the body power supply 26 and the anode power supply 25, the collector power supply
GTO which is a switching element of 27 is turned off. As a result, the body voltage and the anode voltage with respect to the body portion 8 and the anode electrode 4 disappear, and after the electron beam in the gyrotron 1 is extinguished, the collector portion is removed.
Even if the collector voltage to the power supply 15 is stopped, the phenomenon that the current flows into the body power supply 26 does not occur, so that the abnormal phenomenon in the gyrotron 1 can be prevented.

[0067]

As described above, according to the present invention, since the collector power supply and the body power supply, and the anode power supply and the heater power supply are provided independently, it is easy to individually and collectively control each power supply. Operation and aging adjustment with higher flexibility and stability are possible, and the reliability of the fusion device together with the gyrotron is improved.

Further, it is possible to modulate the output wave without fluctuation of the output energy due to the modulation of the anode power supply. By updating the plasma measuring device of the nuclear fusion device and the power supply and control circuit of the gyrotron, the output from the gyrotron can be obtained. By easily synchronizing the wave modulation with the timing of the plasma measurement device, the plasma measurement can be performed efficiently.

[Brief description of the drawings]

FIG. 1 is a block diagram of a gyrotron control device according to a first embodiment of the present invention.

FIG. 2 is a time chart of a pulse operation mode according to a second embodiment of the present invention.

FIG. 3 is a time chart of a continuous operation mode according to a second embodiment of the present invention.

FIG. 4 is a time chart of a pulse aging operation mode according to a third embodiment of the present invention.

FIG. 5 is a time chart of a continuous aging operation mode according to a third embodiment of the present invention.

FIG. 6 is a schematic configuration diagram of a gyrotron.

FIG. 7 is a block diagram of a conventional gyrotron control device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Gyrotron, 2 ... Vacuum container, 3 ... Cathode electrode, 3a ... Heater, 4 ... Anode electrode, 5 ... Electron gun part,
6, 7, 12 insulating spacer, 8 body part, 9 cavity resonator, 10 mode converter, 11 mirror, 13 movable mirror, 14 output window, 15 collector section, 16 first Superconducting magnet, 17 ... Second superconducting magnet, 18 ... Insulated vacuum vessel, 19 ... First
Power supply, 20: first resistance, 21: second resistance, 22: second power supply, 23
... heater power supply, 24, 28 ... control circuit, 25 ... anode power supply,
26 ... body power supply, 27 ... collector power supply, 29 ... master pulse (internal synchronization), 30 ... repetition time (Tc), 31 ... incidence start signal, 32 ... incidence end signal, 33 ... thyristor converter ON delay time (Tth) , 34 ... Collector power supply (GTO)
ON delay time (Tg), 35: Body power inverter ON
Delay time (Tb), 36: Anode power inverter ON delay time (Ta), 37: Anode power output width (Tp).

Claims (6)

[Claims] 1. A gyrotron control for increasing the overall efficiency by applying a voltage for decelerating an electron beam between a high-frequency oscillator and a collector to reduce the thermal load on the collector and simultaneously recovering the energy of the electron beam to a power supply. A gyrotron control device, wherein a collector power source, a body power source, an anode power source, and a heater power source are independently provided, and a control circuit for controlling these power sources is provided with a gyrotron operation mode. 2. The gyrotron control device according to claim 1, wherein the operation modes of the gyrotron provided in the control circuit are a pulse operation mode and a continuous operation mode. 3. The gyrotron control device according to claim 1, wherein the operation modes of the gyrotron provided in the control circuit are a pulse aging operation mode and a continuous aging operation mode. 4. The gyrotron control device according to claim 1, wherein the control circuit controls to start the body power supply earlier than the anode power supply. 5. The gyrotron control device according to claim 1, wherein a collector power supply is operated continuously in a pulse operation mode of the gyrotron provided in the control circuit. 6. A gyrotron provided in the control circuit, wherein the collector voltage is stopped after a body power supply and an anode power supply are stopped and an electron beam in the gyrotron is extinguished. 2. The gyrotron control device according to 1.