Patents by Inventor Chin-Hsien Yeh
Chin-Hsien Yeh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10310107Abstract: A calibration and measurement system for measuring a radioactive specific activity of an analyte pipe includes a calibration pipe, a standard radiation source, a radiation detector, a robot connected and a processing unit. The diameter of the inner wall of the calibration pipe is the same as the analyte pipe. The standard radiation source is surfaced over the inner wall of the calibration pipe and with a standard radioactive activity of a radioactive nuclide. The radiation detector is with a detection efficiency for detecting radiation. The radiation detector is for measuring the standard radioactive activity of the radioactive nuclide and a calibration net count rate thereof or measuring a radiation net count rate of the analyte pipe. The robot is connected with the radiation detector and moves in the calibration pipe or the analyte pipe. The processing unit calculates the detection efficiency and the radioactive specific activity.Type: GrantFiled: September 5, 2018Date of Patent: June 4, 2019Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN, R.O.C.Inventors: Ming-Chen Yuan, Chin-Hsien Yeh
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Patent number: 9841516Abstract: The invention provides a calibration method for bulk radiation wastes. The calibration method for bulk radiation method for bulk radiation wastes including the following steps. First, pluralities of objects are provided. Then, the plurality of objects arranged into calibration member. In addition, a measurement system and a measurement method for bulk radiation wastes are provided.Type: GrantFiled: August 3, 2016Date of Patent: December 12, 2017Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN, R.O.C.Inventors: Ming-Chen Yuan, Wun-Jhih Huang, Ping-Ji Huang, Chin-Hsien Yeh
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Patent number: 9072144Abstract: A control device adapted to control a first light-emitting diode and a second light-emitting diode, includes a first logic operation unit receiving a first enable signal and a second enable signal to generate a first logic signal, a second logic operation unit receiving the first and second enable signals to generate a second logic signal, a first adjustment unit generating a first adjustment signal according to the first logic signal, a second adjustment unit generating a second adjustment signal according to the second logic signal, a first control unit outputting a first control signal to the first light-emitting diode according to the first enable signal and the first adjustment signal, and a second control unit outputting a second control signal to the second light-emitting diode according to the second enable signal and the second adjustment signal. The first logic signal and the second logic signal are complementary.Type: GrantFiled: March 14, 2013Date of Patent: June 30, 2015Assignees: INVENTEC (PUDONG) TECHNOLOGY CORPORATION, INVENTEC CORPORATIONInventors: Sheng-Yuan Tsai, Chin-Hsien Yeh
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Patent number: 9012834Abstract: By using a scintillation surveymeter with good calibration performance evaluation for a secondary standard radiation field, and a working standard part obtaining an ambient dose equivalent rate, in cooperation with a portable irradiator, and an irradiator lifter, a laser range finder and a laser locator of a relevant radiation source, in-situ calibration is capable of being performed on fixed, or large-scale, or continuous monitoring type radiation monitors to be calibrated stationed in nuclear power plants, nuclear medical departments, and other nuclear facility operating institutions. Moreover, a time-efficient and effective in-situ calibration method is further provided, which can be performed based upon a standard calibration field that is achieved using a portable 137Cs radiation source.Type: GrantFiled: September 10, 2012Date of Patent: April 21, 2015Assignee: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: Chin-Hsien Yeh, Ming-Chen Yuan
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Publication number: 20140139105Abstract: A control device adapted to control a first light-emitting diode and a second light-emitting diode, includes a first logic operation unit receiving a first enable signal and a second enable signal to generate a first logic signal, a second logic operation unit receiving the first and second enable signals to generate a second logic signal, a first adjustment unit generating a first adjustment signal according to the first logic signal, a second adjustment unit generating a second adjustment signal according to the second logic signal, a first control unit outputting a first control signal to the first light-emitting diode according to the first enable signal and the first adjustment signal, and a second control unit outputting a second control signal to the second light-emitting diode according to the second enable signal and the second adjustment signal. The first logic signal and the second logic signal are complementary.Type: ApplicationFiled: March 14, 2013Publication date: May 22, 2014Applicants: INVENTEC CORPORATION, INVENTEC (PUDONG) TECHNOLOGY CORPORATIONInventors: Sheng-Yuan Tsai, Chin-Hsien Yeh
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Publication number: 20140042309Abstract: By using a scintillation surveymeter with good calibration performance evaluation for a secondary standard radiation field, and a working standard part obtaining an ambient dose equivalent rate, in cooperation with a portable irradiator, and an irradiator lifter, a laser range finder and a laser locator of a relevant radiation source, in-situ calibration is capable of being performed on fixed, or large-scale, or continuous monitoring type radiation monitors to be calibrated stationed in nuclear power plants, nuclear medical departments, and other nuclear facility operating institutions. Moreover, a time-efficient and effective in-situ calibration method is further provided, which can be performed based upon a standard calibration field that is achieved using a portable 137Cs radiation source.Type: ApplicationFiled: September 10, 2012Publication date: February 13, 2014Applicant: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: CHIN-HSIEN YEH, MING-CHEN YUAN
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Patent number: 8378291Abstract: A metal volume source calibration phantom includes a container, a plurality kinds of metal plates stacked up inside the container, and at least one slab of radioactive source, each of which is disposed between the adjacent metal plates and includes a plurality of radionuclides. By means of inserting different numbers of the plurality kinds of metal plates inside the container, it is capable of obtaining the metal volume source calibration phantoms with different densities. In addition, a method for calibrating the metal volume source calibration phantom is also provided, which starts by the step of providing the metal calibration phantoms with different densities by inserting different numbers of a plurality kinds of metal plates and at least one slab of radioactive source into the container, and then detecting counting efficiency with respect to the metal volume calibration phantoms having different densities by a waste curie monitor so as to establish the correlation between density and counting efficiency.Type: GrantFiled: September 16, 2010Date of Patent: February 19, 2013Assignee: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: Chin-Hsien Yeh, Ming-Chen Yuan
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Publication number: 20110315865Abstract: A metal volume source calibration phantom includes a container, a plurality kinds of metal plates stacked up inside the container, and at least one slab of radioactive source, each of which is disposed between the adjacent metal plates and includes a plurality of radionuclides. By means of inserting different numbers of the plurality kinds of metal plates inside the container, it is capable of obtaining the metal volume source calibration phantoms with different densities. In addition, a method for calibrating the metal volume source calibration phantom is also provided, which starts by the step of providing the metal calibration phantoms with different densities by inserting different numbers of a plurality kinds of metal plates and at least one slab of radioactive source into the container, and then detecting counting efficiency with respect to the metal volume calibration phantoms having different densities by a waste curie monitor so as to establish the correlation between density and counting efficiency.Type: ApplicationFiled: September 16, 2010Publication date: December 29, 2011Applicant: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: Chin-Hsien Yeh, Ming-Chen Yuan
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Patent number: 7686510Abstract: A rod radiation source and its calibration phantom structure mainly have an anti-leak filter layer on one side of a lower lamination layer, and have the anti-leak filter layer evenly deposited with plural drops of liquid radiation sources with each drop of radiation source neighboring but not overlapping, and use an upper lamination layer to cover the anti-leak filter layer to protect each radiation source, and have the above assembly rolled into a rod as a rod radiation source. In another cylindrical container that has a stack of plural sheets, the rod radiation sources get evenly distributed along the axle center and pass each sheet to form a calibration phantom structure for a rod radiation source.Type: GrantFiled: August 28, 2008Date of Patent: March 30, 2010Assignee: Institute of Nuclear Energy ResearchInventors: Chin-Hsien Yeh, Ming-Chen Yuan
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Publication number: 20100054421Abstract: A rod radiation source and its calibration phantom structure mainly have an anti-leak filter layer on one side of a lower lamination layer, and have the anti-leak filter layer evenly deposited with plural drops of liquid radiation sources with each drop of radiation source neighboring but not overlapping, and use an upper lamination layer to cover the anti-leak filter layer to protect each radiation source, and have the above assembly rolled into a rod as a rod radiation source. In another cylindrical container that has a stack of plural sheets, the rod radiation sources get evenly distributed along the axle center and pass each sheet to form a calibration phantom structure for a rod radiation source.Type: ApplicationFiled: August 28, 2008Publication date: March 4, 2010Inventors: CHIN-HSIEN YEH, Ming-Chen Yuan
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Patent number: 7479628Abstract: A drum-type volume source calibration phantom is provided, which comprises a drum-type container; a plurality of plate groups stacking up inside the drum-type container, at least one slab of radioactive source, each of which is disposed between the adjacent plate groups and comprises a plurality of radionuclides. The present invention further provides a calibration method that starts by the step of providing a radioactivity test for each drum-type volume calibration phantom. Then, a calibration relationship of density vs. counting efficiency corresponding to the several different drum-type volume source calibration phantoms is performed in a waste curie monitor. Finally, a characteristic of photonic energy dependency is measured for a modification factor.Type: GrantFiled: October 22, 2007Date of Patent: January 20, 2009Assignee: Institute of Nuclear Energy ResearchInventors: Chin-Hsien Yeh, Ming-Chen Yuan
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Patent number: 7385184Abstract: A volume calibration phantom comprises a container; a plurality of plates stacking up inside the container; and at least one slab of radioactive source, each of which is disposed between the adjacent plates and comprises a plurality of radionuclides. With the volume calibration phantoms, the present invention further provides a calibration method which is an improvement over conventional calibration methods of space geometric center point source and relative penetration factor ratios. The method comprises the steps of generating a calibration curve of density vs.Type: GrantFiled: October 17, 2006Date of Patent: June 10, 2008Assignee: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: Chin-Hsien Yeh, Ming-Chen Yuan
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Publication number: 20080087807Abstract: A volume calibration phantom is disclosed in the present invention, which comprises a container; a plurality of plates stacking up inside the container; and at least one slab of radioactive source, each of which is disposed between the adjacent plates and comprises a plurality of radionuclides. With the volume calibration phantoms, the present invention further provides a calibration method which is an improvement over conventional calibration methods of space geometric center point source and relative penetration factor ratios. The method comprises the steps of generating a calibration curve of density vs.Type: ApplicationFiled: October 17, 2006Publication date: April 17, 2008Applicant: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: Chin-Hsien Yeh, Ming-Chen Yuan