JPH02197098A - X-ray generator provided with water leak detection means - Google Patents

Abstract

PURPOSE:To permit to make sure detection of any water leak by fixing an overflow pipe to the side face of a receiving pan provided opposite a target, and setting a water detecting sensor within the receiving pan at the given height thereof. CONSTITUTION:A receiving pan 1, which is provided opposite a high-speed revolving target, receives and stores leaked cooling water. When stored water 5 reaches a given water level h1 due to the occurrence of a water leak, the water touches a sensor 3 which generates a water leak signal. A water leak detection circuit 9 generates a water leak detection signal according to the signal from the sensor 3, thereby causing an X-ray generation protector 11 to be operated for stopping the generation of electron beams. Then, a buzzer 13 is driven to inform a user of the water leak. When the level of the stored water 5 reaches a position of h2, the water is drained through an overflow pipe 7. Since, in this manner, the water leak is automatically detected for stopping the generation of electron beams to inform the user of the water leak, such misjudgment by human eyes that the conventional method had can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an X-ray generator, and more particularly to an X-ray generator that detects leakage of target cooling water.

[Conventional technology]

FIG. 3 is a diagram showing a conventional X-ray generator, in which an electron beam is generated by an electron beam generator 23 installed in an X-ray generator 21 whose interior is maintained in a vacuum state, and the electron beam is rotated at 2000 to 3000 rpm. The side surface of the target 27 which is rotating is irradiated with the light. The target 27 is made of copper, for example,
X-rays 29 are generated by irradiation with an electron beam. In this case, the target 27 becomes abnormally high in temperature due to the electron beam irradiation, so its inner surface is cooled with cooling water 41 as shown in FIG. 4 to prevent it from reaching a high temperature and melting.

In this way, as shown in item 5, the X-rays generated from the target 27 are extracted in three directions and used in an X-ray diffraction device or the like.

By the way, as shown in FIG. 4, since the inner surface of the target is cooled with cooling water 41, water inevitably leaks from there. Therefore, conventionally, a receiving tray 31 is placed opposite the target 27 as shown in FIG. As shown in FIG. 6, the pipe 33 connected to the bottom of this tray is drawn out of the apparatus, so that leakage water is led to the outside. Therefore, the user detects that a water leak has occurred by looking at the water being discharged from the pipe 33, and the user determines that a water leak has occurred by observing the water being discharged through the pipe 33. Repairs are being made for this purpose.

(A!Problem to be solved by the invention) As described above, in conventional X-ray generators, water leaks are determined by humans by looking at the water discharged from the pipe, which inevitably leads to oversights and countermeasures. There was a drawback that the delay could lead to water entering the inside of the device and damage to the target itself.

The present invention is intended to solve the above problems, and it automatically detects water leakage, protects the X-ray generator when water leakage is detected, and prevents damage to the target. It is an object of the present invention to provide an X-ray generator equipped with a water dish detection means capable of quantitatively determining water leakage while eliminating judgment errors caused by human eyes.

[Means for Solving the Problems] To this end, the X-ray generator equipped with the water leak detection means of the present invention has an inner surface cooled with cooling water, and generates X-rays by irradiating an electron beam onto a rotationally driven target. An X-ray generator that generates rays is characterized in that a tray with an overflow pipe connected to the side is arranged facing the target, and a sensor for detecting water is arranged at a predetermined height position from the bottom of the tray. shall be.

[Effect]

In the present invention, a sensor for detecting water is arranged at a predetermined height position of a saucer provided opposite to a high-speed rotating targeter 1-, and when water leaks and reaches a predetermined water level, the sensor automatically detects water. The detection signal is used to stop the electron beam for irradiating the target, issue a warning, or input the information that water has leaked into the microcomputer, which prevents the destruction of various data due to water leakage. It becomes possible to do so.

C Example] Examples will be described below with reference to the drawings.

FIG. 1 is a diagram showing the configuration of an X-ray generator equipped with a water leak detection means of the present invention, in which 1 is a saucer, 3 is a sensor, 5 is water storage, 7 is an overflow pipe, and 9 is a water leak detection circuit. ,
11 is an X-ray protection circuit, 13 is a buzzer, 15 is an ink face, and 17 is a microcomputer.

As in the case of FIG. 3, the receiving tray 1 is provided facing the target rotating at high speed, and is designed to receive and store cooling water when leakage occurs. When a water leak occurs and the stored water 5 reaches a predetermined water level, for example hl, it touches the sensor 3 and a water leak signal is generated. As the sensor 3, for example, a sensor having a predetermined pattern drawn on a substrate and detecting leakage between the patterns due to water leakage can be used.

In this way, a water leak signal is generated from the water leak detection circuit 9 in response to the signal from the sensor 3, and the X-ray emission protector 11 is activated to stop the generation of the electron beam and prevent damage to the target. Additionally, the buzzer 13 is driven to notify the user of the water leak, and data on the water leak is sent to the microcomputer 17 via the interface 15, and the microcomputer sends the signal to the host computer to detect an abnormality. By notifying the occurrence, the host combinator side can protect the data up to that point. When the water level of the stored water 5 further rises to reach the water level, the water is discharged to the outside through the overflow pipe 7.

FIG. 2 is a diagram showing another embodiment of the present invention, in which water discharged from an overflow pipe 7 is detected by a sensor 3; Various devices may be driven in the same manner.

〔Effect of the invention〕

As described above, according to the present invention, when a water leak occurs, it is automatically detected, the X-ray generator is protected,
It is possible to protect the target by preventing the generation of electron beams, and it is also possible to notify the user of water leaks with a buzzer, etc., so it is possible to prevent judgment errors made by the human eye as in the past. Furthermore, water leakage is determined by the position of the water detection sensor in the case where the sensor is placed inside the tray, and by the connection position of the vibrator in the tray in the case where the water detection sensor is placed at the outlet of the overflow vibrator. It becomes possible to make an accurate judgment.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the configuration of an X-ray generator equipped with a water leak detection means of the present invention, FIG. 2 is a diagram showing another embodiment of the present invention, and FIG. 3 is a diagram showing a conventional X-ray generator. FIG. 4 is a diagram for explaining cooling of the target, FIG. 5 is a diagram showing how X-rays are taken out from the X-ray generator, and FIG. 6 is a diagram showing a conventional receiving tray. 1... saucer, 3... sensor, 5... stored water, 7.
... Overflow pipe, 9... Water leak detection circuit, 11... X-ray generation protection circuit, 13... Buzzer, 15... Interface, 17... Microcomputer. Applicant: Japan

Claims (1)

[Claims] (1) In an X-ray generator that generates X-rays by irradiating an electron beam onto a rotatably driven target whose inner surface is cooled by cooling water, the overflow pipe is placed at a predetermined height on the side facing the target. An X-ray device equipped with water leakage detection means, characterized in that a water leak detection means is arranged, and a water detection sensor is arranged at a certain height from the bottom of the tray, or at a discharge port of an overflow pipe. Generator.