Depth dose measuring device
First Claim
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1. A depth dose measuring device comprising:
- detecting means for receiving a particle beam as input, and outputting a scintillation light and a Cerenkov light caused by the particle beam, from an end surface;
light detecting means for detecting the scintillation light and the Cerenkov light outputted from the detecting means and removing the Cerenkov light, and outputting a detection result;
picture signal processing means for processing signals from the detection result outputted from the light detecting means; and
display means for displaying a processing result performed in the picture signal processing means,wherein a measurement is made of an amount of the scintillation light having a wavelength corresponding to a light spectrum generated in the detecting means.
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Abstract
In a depth dose measuring device, a light is outputted from an end surface of a block-type detector (202) formed by tying a plurality of scintillation fibers in a bundle, a spectroscope (204) is used to disperse the light so as to measure an amount of light having a wavelength corresponding to an emission spectrum of the scintillation fibers, a picture measuring device (205) and a picture processing device (206) calculate an emission distribution of only a scintillation light depending upon an emission distribution in which the scintillation light and a Cerenkov light are mixed, and a result is displayed on a display device (207).
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Citations
8 Claims
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1. A depth dose measuring device comprising:
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detecting means for receiving a particle beam as input, and outputting a scintillation light and a Cerenkov light caused by the particle beam, from an end surface; light detecting means for detecting the scintillation light and the Cerenkov light outputted from the detecting means and removing the Cerenkov light, and outputting a detection result; picture signal processing means for processing signals from the detection result outputted from the light detecting means; and display means for displaying a processing result performed in the picture signal processing means, wherein a measurement is made of an amount of the scintillation light having a wavelength corresponding to a light spectrum generated in the detecting means. - View Dependent Claims (2, 3, 4, 5)
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6. A depth dose measuring device comprising:
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detecting means for receiving a particle beam as input, and outputting a light caused by the particle beam from an end surface; light detecting means for detecting the light outputted from the detecting means, and outputting a detection result; picture signal processing means for processing signals from the detection result outputted from the light detecting means; and display means for displaying a processing result performed in the picture signal processing means, wherein a measurement is made of an amount of light having a wavelength corresponding to a spectrum of the light generated in the detecting means; wherein the detecting means comprises; a fiber block formed by alternately disposing a plurality of scintillation fibers and a plurality of regular optical fibers; wherein only a light outputted from the plurality of scintillation fibers is outputted from a first end surface of the detecting means; wherein only a light outputted from the plurality of regular optical fibers is outputted from a second end surface of the detecting means; the picture signal processing means comprising; first signal processing means for receiving as input and processing the light outputted from the first end surface; second signal processing means for receiving as input and processing the light outputted from the second end surface; and the picture signal processing means calculating a difference between a result obtained in the first signal processing means and a result obtained in the second signal processing means.
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7. A depth dose measuring device comprising:
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detecting means for receiving a particle beam as input, and outputting a light caused by the particle beam from an end surface; light detecting means for detecting the light outputted from the detecting means, and outputting a detection result; picture signal processing means for processing signals from the detection result outputted from the light detecting means; and display means for displaying a processing result performed in the picture signal processing means, wherein a measurement is made of an amount of light having a wavelength corresponding to a spectrum of the light generated in the detecting means; wherein the detecting means comprises; a fiber block formed by alternately disposing a plurality of scintillation fibers and a plurality of regular optical fibers; wherein a first light outputted from the plurality of scintillation fibers and a second light outputted from the plurality of regular optical fibers are outputted from a first end surface of the detecting means; wherein a luminance distribution of the first light and the second light is measured by picture measuring means; wherein data of the luminance distribution measured by the picture measuring means is outputted to the picture signal processing means; and wherein the picture signal processing means performs picture processing of input data of the luminance distribution of the first light and the luminance distribution of the second light; and wherein a difference in luminance distribution is calculated between the first light and the second light.
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8. A depth dose measuring device comprising:
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detecting means for receiving a particle beam as input, and outputting a light caused by the particle beam from an end surface; light detecting means for detecting the light outputted from the detecting means, and outputting a detection result; picture signal processing means for processing signals from the detection result outputted from the light detecting means; and display means for displaying a processing result performed in the picture signal processing means, wherein a measurement is made of an amount of light having a wavelength corresponding to a spectrum of the light generated in the detecting means; wherein the detecting means comprises; a block formed by tying a plurality of regular optical fibers in a bundle; wherein a Cerenkov light outputted from an end surface of the detecting means is outputted to the picture signal processing means; and wherein the picture signal processing means obtains a depth dose distribution depending upon a correlation between a distribution of the inputted Cerenkov light and a previously measured depth absorbed dose distribution.
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Specification