KR20160136149A - RF Acceleration Cavity Temperature Control Apparatus and Method for Linear Electron Accelerator - Google Patents

RF Acceleration Cavity Temperature Control Apparatus and Method for Linear Electron Accelerator Download PDF

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Publication number
KR20160136149A
KR20160136149A KR1020150069965A KR20150069965A KR20160136149A KR 20160136149 A KR20160136149 A KR 20160136149A KR 1020150069965 A KR1020150069965 A KR 1020150069965A KR 20150069965 A KR20150069965 A KR 20150069965A KR 20160136149 A KR20160136149 A KR 20160136149A
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South Korea
Prior art keywords
temperature
cell
controlling
cooling water
sensors
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KR1020150069965A
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Korean (ko)
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KR101687709B1 (en
Inventor
김민석
이병노
박형달
이병철
차형기
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한국원자력연구원
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Priority to KR1020150069965A priority Critical patent/KR101687709B1/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H5/00—Direct voltage accelerators; Accelerators using single pulses
    • H05H5/02—Details
    • H05H5/03—Accelerating tubes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H2242/00—Auxiliary systems
    • H05H2242/10—Cooling arrangements

Abstract

The present invention relates to a temperature control apparatus and method for a high frequency acceleration tube, comprising: a plurality of temperature sensors for measuring temperatures of cells, respectively, which configure the high frequency acceleration tube; a plurality of coolant valves for controlling introduction and discharge of a coolant for controlling a temperature of each of the cells; and a control unit for controlling the coolant valves for each cell based on measurement values measured in the temperature sensors so as to control a coolant introduced or discharged for each cell. The temperature sensors are remote temperature sensors for measuring a temperature of each corresponding cell in a distance spaced apart at a predetermined distance.

Description

TECHNICAL FIELD [0001] The present invention relates to an RF accelerating cavity temperature control apparatus and method for a linear electron accelerator,

The present invention relates to an apparatus and a method for controlling the temperature of a high frequency acceleration tube.

Generally, a high frequency acceleration tube constituting a linear electron accelerator is constituted by connecting a plurality of cells having different functions. Since the high-frequency accelerating tube must control the resonant frequency of the accelerating tube within a certain range during the accelerator operation, it is very important to keep the temperature constant. For this temperature control, a method is generally used in which the temperature is measured by a single contact type temperature sensor such as a thermocouple or a thermistor, and the temperature is controlled by circulating the cooling water through the entire acceleration tube. In this case, due to the characteristics of the high frequency accelerating tube composed of a plurality of cells, the high frequency energy generated according to each cell position may be different, and thus each cell may have different heat generation degree. Therefore, there is a problem that it is difficult to precisely control the temperature of the entire high-frequency acceleration tube.

An object of the present invention is to provide an apparatus and method for precisely controlling the temperature of a high frequency accelerator composed of a plurality of cells.

It is another object of the present invention to provide an apparatus and method for enabling a temperature of a plurality of cells constituting a high frequency accelerator to be more easily sensed and controlling a temperature of the high frequency accelerator more easily.

According to another aspect of the present invention, there is provided an apparatus for controlling a temperature of a high-frequency accelerating tube, the apparatus comprising: a temperature controller for measuring a temperature of each cell constituting the high- A plurality of cooling water valves for controlling the inflow and outflow of cooling water for controlling the temperature of each of the cells, and a plurality of cooling water valves for controlling the cooling water, And a controller for controlling each valve of each cell to control the cooling water flowing in or out of each cell, wherein the plurality of temperature sensors comprises a remote temperature sensor .

In one embodiment, the plurality of temperature sensors and the control unit are installed in a printed circuit board (PCB), and are implemented in an I 2 C bus control system, and control the plurality of temperature sensors at the same time, And simultaneously receiving the temperature measurement values sensed from the temperature.

In one embodiment, the plurality of temperature sensors are installed on the PCB, wherein the cells are spaced apart from each other by a spaced distance.

In one embodiment, the control unit controls an SDA (Serial Data) input signal with one control output, and recognizes data of each of the plurality of sensors with a control input corresponding to the number of the plurality of sensors .

In one embodiment, the control unit controls a cooling pump that controls a flow rate of the cooling water based on values measured from the plurality of temperature sensors.

In one embodiment, the plurality of temperature sensors are sensors for measuring the temperature of each cell using infrared rays.

According to another aspect of the present invention, there is provided a method for controlling a temperature of a high-frequency acceleration tube, the method comprising the steps of: The method comprising the steps of: measuring a temperature of each cell; and controlling a temperature of each cell in units of cells based on the measured temperature of each cell, And controlling the cooling water valve for controlling the amount of discharged cooling water according to the temperature measured for each cell.

In one embodiment, measuring the temperature comprises simultaneously receiving temperature measurements of the respective cells sensed from the plurality of temperatures from the plurality of temperature sensors implemented and controlled simultaneously by the I 2 C Bus control scheme .

In one embodiment, the step of controlling the temperature may include: calculating an average temperature value from the temperatures measured for each cell; and determining, based on the average temperature value, And controlling the coolant pump to adjust the flow rate.

Therefore, in the present invention, a temperature sensor for temperature measurement is installed in each cell constituting the high-frequency acceleration tube so as to correspond to each cell constituting the high-frequency acceleration tube, and temperature control of the high-frequency acceleration tube is performed from the temperature measured from each cell So that the temperature control of the high-frequency acceleration tube can be performed more precisely.

The present invention also provides a sensor for measuring the entire cell of the accelerator tube by installing a plurality of sensors at each cell interval on one substrate by applying an infrared temperature sensor measuring a temperature of each cell constituting the high- (Printed circuit board) to facilitate the installation of the temperature sensor, simultaneously measure the temperature of all the cells with the infrared sensor, open and close the cooling water of the corresponding cell with the measured value of each sensor, The temperature of the accelerating pipe can be precisely controlled by controlling the flow rate of the cooling pump.

1 is a block diagram showing the configuration of a temperature control apparatus according to an embodiment of the present invention.
2 is a conceptual diagram showing the structure of a temperature control device and a high frequency acceleration tube according to an embodiment of the present invention in more detail.
3 is a circuit diagram showing a circuit configuration of a temperature control device according to an embodiment of the present invention.
FIG. 4 is a flowchart illustrating a process of controlling the temperature of each cell constituting the high-frequency acceleration tube according to the embodiment of the present invention.

It is noted that the technical terms used herein are used only to describe specific embodiments and are not intended to limit the invention. Also, the singular forms "as used herein include plural referents unless the context clearly dictates otherwise. In this specification, "comprises" Or "include." Should not be construed to encompass the various components or stages described in the specification, and some or all of the components or steps may not be included, or the additional components or steps And the like.

Further, in the description of the technology disclosed in this specification, a detailed description of related arts will be omitted if it is determined that the gist of the technology disclosed in this specification may be obscured.

1 is a block diagram showing the configuration of a temperature control apparatus according to an embodiment of the present invention.

1, the apparatus 100 for controlling a temperature of a high-frequency acceleration tube according to an embodiment of the present invention includes a control unit 110, a sensing unit 120 connected to the control unit 110, a plurality of cooling valves 130, As shown in FIG.

Here, the plurality of cooling valves 130 may correspond to each cell constituting the high-frequency acceleration tube. That is, when there are n cells constituting the high-frequency acceleration tube, the plurality of cooling valves 130 may be formed of the number of the cells (for example, n equal to the number of the cells) Cooling water can be introduced and discharged. These valves 130 may be implemented as solenoid valves (solenoid valves) in the form of a solenoid.

Meanwhile, the sensing unit 120 may include a plurality of sensors. The sensors may be for measuring the temperature of each of the cells of the high frequency acceleration tube. For this, the number of the sensors may be the same as the number of the cells, and the controller 110 may control the operation of the controller 110 and the information about the measured temperature.

Meanwhile, the plurality of sensors may be formed in a noncontact manner in each cell. For example, the sensors may be formed in the form of an infrared temperature sensor, and may be spaced a certain distance from the respective cells of the high frequency acceleration tube. In this case, the temperature sensors sense the infrared energy emitted according to the temperature of each cell, and measure the temperature of each cell according to the measured infrared energy. Therefore, when the plurality of sensors are formed in the form of an infrared temperature sensor, the sensors can be formed in a non-contact manner, and the temperature of each cell constituting the high-frequency acceleration tube can be measured more quickly and precisely.

Meanwhile, the controller 110 may control a plurality of connected valves 130 using temperature measurement information received from the sensors of the sensing unit 120. For example, the controller 110 may control the valves of the respective cells based on the respective temperature measurement values to control the amounts of the cooling water flowing into and out of the respective cells. Accordingly, in the present invention, the temperature of the high-frequency acceleration tube can be controlled more precisely by controlling the flow and the flow rate of the cooling water in each cell constituting the high-frequency acceleration tube.

On the other hand, the control unit 110 may control the cooling pump 205 based on the measured average value of the measured temperature sensors. For example, the control unit 110 controls the cooling pump based on the average value of the temperature measurement values sensed by the plurality of sensors 201, so that the flow rate of the cooling water that can flow into each cell of each high- And may be maintained in an optimal state according to the temperature state of the cells.

2 is a conceptual diagram showing the structure of the temperature control device and the high frequency acceleration tube according to the embodiment of the present invention in more detail.

2, a plurality of sensors 200 installed in accordance with an embodiment of the present invention are installed in each of the cells 200 constituting the high frequency acceleration tube and the cooling water valves 203 corresponding to the respective cells 200 201).

As described above, in the present invention, a plurality of sensors 201 may be provided to correspond to the respective cells 200, and each sensor can measure the temperature of the corresponding cell. For this, the sensors 201 may be installed on the sensor substrate 102 at intervals corresponding to the cells 200 of the high-frequency acceleration tube, and may be installed at a predetermined interval from the cells 200 .

Meanwhile, the controller 110 and the plurality of sensors 201 may be formed of one substrate, for example, a printed circuit board (PCB). 3 is a circuit diagram showing the circuit configuration of the temperature control device according to the embodiment of the present invention in such a case.

As shown in FIG. 3, when the controller 110 and the plurality of sensors 201 are implemented on one substrate, the plurality of sensors 201 may be implemented by an I 2 C bus control scheme. That is, the controller 110 can simultaneously control the plurality of sensors 201 through an SDA (Serial Data) input 300 and an SCL (Serial Clock) input 301. The SDA (Serial Data) ) From all the sensors 201 from the temperature sensor 210. [0054] That is, the control unit 110 simultaneously controls the sensors 201 by controlling an SDA (Serial Data) input signal with a single control output, The data of each of the plurality of sensors can be recognized. A Wired-AND transistor (SDA Wired-AND transistor) 304 may be used in the present invention in order to control the SDA input signal of all the sensors with one control output.

The control unit 110 can open and close the cooling water valve 203 (for example, a solenoid valve) of each cell 200 based on the measured data from the plurality of sensors 201, that is, have. Accordingly, the flow of water (cooling water) in the cooling pipe 204 can be controlled on a cell-by-cell basis under the control of the control unit 110. The control unit 110 controls the cooling pump 205 based on the average temperature of all the cells 200 so that the cooling water having the optimum flow rate according to the temperature state of the current cells 200 is maintained in the cooling pipe 204 It is possible.

Meanwhile, FIG. 4 is a flowchart illustrating a process of controlling the temperature of each cell constituting the high-frequency acceleration tube according to an embodiment of the present invention.

Referring to FIG. 4, the controller 110 according to an embodiment of the present invention can measure the temperature of each cell constituting the high-frequency acceleration tube (S400). For this purpose, in order to arrange a plurality of temperature sensors 201 corresponding to the respective cells 200 of the high-frequency acceleration tube, each of the cells 200 is divided into a plurality of The temperature sensors 201 may be installed apart from each other. The plurality of sensors 201 may be implemented as a remote temperature sensor capable of measuring temperature remotely by using infrared rays or the like so that the temperature of each of the cells 200 The temperature of each of the cells 200 can be measured more easily.

Meanwhile, the controller 110 may generate various control information from the measured temperature values of the respective cells (S402). For example, the control unit 110 may generate cooling water valve control information for controlling the amount of cooling water flowing into or out of each cell from the temperature measurement values of the respective cells. In this case, the controller 110 may control the amount of cooling water to be supplied to each cell so that the amount of the cooling water flowing in and out of the cell is controlled differently according to different temperatures. It is also possible to generate corresponding cooling water valve control information.

In addition, in step S402, control information for controlling the cooling pump 205 may be generated. In this case, the control unit 110 may calculate an average value of the temperature values measured for each cell, and may generate control information for controlling the cooling pump 205 based on the calculated average value.

In step S404, the control unit 110 controls the amount of cooling water flowing into and out of each of the cells 200 based on the control information generated in step S402, or controls the flow rate of the cooling water. In step S404, the controller 110 can control the amount of cooling water flowing into and out of at least one cell 200 by controlling the cooling water valve 203 based on at least one valve control information, It is also possible to control the flow rate of cooling water in the cooling pipe 204 based on control information for controlling the pump 205. [

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: high frequency accelerating pipe temperature control device 110:
120: sensing part 130: plural valves
200: high frequency acceleration tube 201: temperature sensor
202: sensor substrate 203: valve
204: cooling pipe 205: cooling pump
300: SDA input 301: SCL input
302: SDA output 303: Pull-up resistance
304: SDA Wired-AND Connected Transistor

Claims (9)

An apparatus for controlling a temperature of a high frequency acceleration tube,
A plurality of temperature sensors each for measuring the temperature of each cell (Cell) constituting the high frequency acceleration tube;
A plurality of cooling water valves for controlling the flow of cooling water for controlling the temperature of each cell; And
And a controller for controlling the plurality of cooling water valves on a cell-by-cell basis based on measured values measured from the plurality of temperature sensors and controlling cooling water flowing in or out of each cell,
Wherein the plurality of temperature sensors comprise:
Wherein the remote temperature sensor is a remote temperature sensor for measuring the temperature of each corresponding cell at a distance spaced by a predetermined distance.
The method according to claim 1,
The plurality of temperature sensors and the control unit may include:
It is installed on one printed circuit board (PCB)
Wherein the controller is implemented in an I 2 C bus control system to simultaneously control the plurality of temperature sensors and simultaneously receive temperature measurement values sensed from the plurality of temperatures.
The temperature sensor according to claim 2,
Wherein the cells are spaced apart from each other by a spaced distance and installed on the PCB.
3. The apparatus of claim 2,
Wherein an SDA (Serial Data) input signal is controlled by one control output, and data of each of the plurality of sensors is recognized by a control input corresponding to the number of the plurality of sensors.
The apparatus of claim 1,
And a cooling pump for controlling the flow rate of the cooling water is controlled based on the values measured from the plurality of temperature sensors.
2. The temperature sensor according to claim 1,
And a sensor for measuring the temperature of each of the cells using an infrared ray.
A method for measuring a temperature of a high frequency acceleration tube,
Measuring a temperature of each of a plurality of temperature sensors corresponding to each cell constituting the high frequency acceleration tube; And
And controlling the temperature of each cell based on the measured temperature for each cell,
Wherein the step of controlling the temperature comprises:
And controlling a cooling water valve for controlling the amount of cooling water flowing in and out of each cell according to a measured temperature of each cell.
8. The method of claim 7, wherein measuring the temperature comprises:
And simultaneously receiving temperature measurement values of the respective cells sensed from the plurality of temperatures from the plurality of temperature sensors simultaneously implemented and controlled by the I 2 C bus control method.
8. The method of claim 7, wherein controlling the temperature comprises:
Calculating an average temperature value from the temperatures measured for each cell; And
Further comprising the step of controlling a cooling water pump for controlling a flow rate of cooling water in a cooling pipe connected to each of the cells based on the average temperature value.
KR1020150069965A 2015-05-19 2015-05-19 RF Acceleration Cavity Temperature Control Apparatus and Method for Linear Electron Accelerator KR101687709B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06283300A (en) * 1993-03-30 1994-10-07 Mitsubishi Electric Corp Charged particle linear accelerator
KR20070035265A (en) * 2005-09-27 2007-03-30 (주)대인테크 Control System for Same Address Device Using I2C Protocol
JP2008032528A (en) * 2006-07-28 2008-02-14 Tokyo Electron Ltd Section and method for measuring stationary wave in waveguide, electromagnetic utilization device, and plasma processing system and method
KR101276677B1 (en) * 2013-04-04 2013-06-19 국방과학연구소 Fuel cell system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06283300A (en) * 1993-03-30 1994-10-07 Mitsubishi Electric Corp Charged particle linear accelerator
KR20070035265A (en) * 2005-09-27 2007-03-30 (주)대인테크 Control System for Same Address Device Using I2C Protocol
JP2008032528A (en) * 2006-07-28 2008-02-14 Tokyo Electron Ltd Section and method for measuring stationary wave in waveguide, electromagnetic utilization device, and plasma processing system and method
KR101276677B1 (en) * 2013-04-04 2013-06-19 국방과학연구소 Fuel cell system

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