Scintillation probe and intra-tube cavity insertable radioactive ray detecting apparatus
First Claim
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1. A scintillation probe insertable into a tube cavity of a living body, comprising:
- an insertable portion extending in a longitudinal direction, said insertable portion having a tip portion;
a plurality of scintillators disposed in said tip portion, shielded from external light, and positioned adjacent to each other, each of said plurality of scintillators individually emitting light in response to a detection of radioactive rays;
a plurality of light transmitting means respectively connected to carry light emitted by each of said plurality of scintillators; and
a plurality of photoelectric converting means receiving respectively the light carried by said plurality of light transmitting means, for converting the light to electric signals; and
an analyzer means connected to an output of the photoelectric converting means to count the radiation emitted from the vicinity of the tip portion of the probe.
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Accused Products
Abstract
In a probe, two scintillators are arranged in tandem, the front end surfaces of two optical fibers transmitting the light emitted by the scintillators are connected to the rear of the scintillators and two photoelectric converters converting the light to pulse signals are connected to the rear of the optical fibers. A gate delay generator produces a gate signal from one pulse signal. A delay amplifier delays the other pulse signal. An M.C.A. will count up in case the pulse signal output by the delay amplifier is obtained during the gate signal.
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Citations
23 Claims
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1. A scintillation probe insertable into a tube cavity of a living body, comprising:
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an insertable portion extending in a longitudinal direction, said insertable portion having a tip portion; a plurality of scintillators disposed in said tip portion, shielded from external light, and positioned adjacent to each other, each of said plurality of scintillators individually emitting light in response to a detection of radioactive rays; a plurality of light transmitting means respectively connected to carry light emitted by each of said plurality of scintillators; and a plurality of photoelectric converting means receiving respectively the light carried by said plurality of light transmitting means, for converting the light to electric signals; and
an analyzer means connected to an output of the photoelectric converting means to count the radiation emitted from the vicinity of the tip portion of the probe.
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2. A scintillation probe insertable into a tube cavity of a living body, comprising:
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an insertable portion extending in a longitudinal direction, said insertable portion having a tip portion; first and second scintillators disposed in said tip portion, shielded from external light, and positioned adjacent to each other, each of said scintillators individually emitting light in response to a detection of radioactive rays; first and second light transmitting means respectively connected to carry light emitted by each of said first and second scintillators; and first and second photoelectric converting means receiving respectively the light carried by said first and second light transmitting means, for converting the light to electric signals; and
an analyzer means connected to an output of the photoelectric converting means to count the radiation emitted from the vicinity of the tip portion of the probe. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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10. An intra-tube cavity insertable radioactive ray detecting apparatus, comprising:
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an insertable portion extending in a longitudinal direction, said insertable portion having a tip portion; first and second scintillators disposed in said tip portion, shielded from external light, each of said scintillators individually emitting light in response to detection of radioactive rays; first and second light transmitting means respectively connected to carry light emitted by each of said first and second scintillators; and first photoelectric converting means and second photoelectric converting means receiving respectively the light carried by said first and second light transmitting means, for converting the light to electric signals;
an output signal of said first photoelectric converting means constituting a gate signal;a counting means responsive to said output of said first photoelectric converting means, for performing either one of a synchronous count and an asynchronous count with output signal from said second photoelectric converting means by using said gate signal. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A scintillation probe insertable into a tube cavity of a living body, comprising:
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an insertable portion extending in a longitudinal direction, said insertable portion having a tip portion; first, second, and third scintillators disposed in said tip portion, each shielded from external light, and positioned adjacent to each other, each of said first, second, and third scintillators individually emitting light in response to a detection of radioactive rays; first light transmitting means, second light transmitting means, and third light transmitting means respectively connected to carry light emitted by each of said first, second, and third scintillators; and first, second, and third photoelectric converting means receiving respectively the light carried by said first, second, and third light transmitting means, for converting the light to electric signals. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification