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31. 发明专利

JPH06308281A MOBILE IN-CORE PROBE MONITOR 失效
公开(公告)号：JPH06308281A
公开(公告)日：1994-11-04
申请号：JP9612993
申请日：1993-04-22
申请人： TOSHIBA CORP
发明人： ISHIBASHI MITSUO , KARAUSHI HIROTERU
IPC分类号： G01T3/00 , G21C19/20
摘要： PURPOSE:To improve the reliability of the position information of a detector with a simple structure. CONSTITUTION:Marker materials 21-1 through 21-n locally changing the neutron flux level are arranged at the prescribed interval on or near a guide pipe 20, the output Of a neutron flux detector 8 is inputted to a position detecting means 23 to detect the portion where the output level is locally changed, and the position in the reactor core axial direction of the neutron flux detector 8 corresponding to the output level is judged from the local change.

32. 发明专利

JPH06123776A RADIATION MONITOR 失效
公开(公告)号：JPH06123776A
公开(公告)日：1994-05-06
申请号：JP27310092
申请日：1992-10-12
申请人： TOSHIBA CORP
发明人： ISHIBASHI MITSUO
IPC分类号： G01T1/167 , G01V5/00
摘要： PURPOSE:To provide a radiation monitor which can determine an appropriate time of replacement by deciding the condition of breakage of a wire mesh conveyor without relying on a maintenance crew. CONSTITUTION:The radiation monitoring system where an object 16 to be measured is transferred on a wire mesh conveyor 12 and radiation from the object 16 is measured by means of radiation detectors 13, 14 comprises a wire mesh breakage detecting means 15 for projecting a light beam to the vicinity of carrying face of the wire mesh conveyor 12 in parallel therewith and detecting the light beam passed on the carrying face, and means 17 for determining the extent of breakage of the wire mesh conveyor 12 basing on the detection results of the wire mesh breakage detecting means 15.

33. 发明专利

JPH05157845A DUST RADIATION MONITOR 失效
公开(公告)号：JPH05157845A
公开(公告)日：1993-06-25
申请号：JP32291191
申请日：1991-12-06
申请人： TOSHIBA CORP
发明人： ISHIBASHI MITSUO , CHIBA KEIICHI
IPC分类号： G01T1/167
摘要： PURPOSE:To facilitate the discrimination of a filter paper whose radioactive concentration is judged high, without providing filter paper sorting mechanism and attain the compactness of the whole device and the effective volume use of a filter paper storage body. CONSTITUTION:In this dust radiation monitor, dust in sampling gas inside a nuclear plant is collected by filter paper 6 fed into a dust collecting part by filter paper feed mechanism, and radiation emitted from radioactivity in the dust collected by the filter paper 6 is detected by a radiation detector 7 to measure radioactive concentration. The filter paper 6 after collecting dust is cut by cutting mechanism and stored in a filter paper storage body 21, and there is provided a control means for controlling the feed quantity of the filter paper 6 by setting the feed quantity of the filter paper 6 either according to the compared result of the measured radioactive concentration with the alarm set value or according to the dust collecting time.

34. 发明专利

JPH05157844A DUST RADIATION MONITOR 失效
公开(公告)号：JPH05157844A
公开(公告)日：1993-06-25
申请号：JP32291091
申请日：1991-12-06
申请人： TOSHIBA CORP
发明人： ISHIBASHI MITSUO
IPC分类号： G01T1/167
摘要： PURPOSE:To improve measuring accuracy and responsiveness. CONSTITUTION:There are provided a pump 11 for sucking sampling gas, filter paper 12 for collecting dust in the gas sampled by the pump 11, a radiation detector 13 for detecting radiation emitted from radioactivity in the dust collected by the filter paper 12 so as to output pulses, and a counting means 15 for integrating/counting the pulses outputted from the radiation detector 13. There is also provided a data processing means 16 formed of an average dust radioactive concentration computing means for computing the average dust radioactive concentration every fixed time using the integrated count value from the counting means 15, and an instantaneous dust radioactive concentration computing means for computing the instantaneous dust radioactive concentration using the average dust radioactive concentration computing means.

35. 发明专利

JPH04310892A HUMAN BODY SURFACE MONITOR 失效
公开(公告)号：JPH04310892A
公开(公告)日：1992-11-02
申请号：JP7784891
申请日：1991-04-10
申请人： TOSHIBA CORP
发明人： ISHIBASHI MITSUO
IPC分类号： G01T1/169
摘要： PURPOSE:To shorten measuring time by shortening moving time of a head part detector to a head position of a man to be inspected. CONSTITUTION:When a human body to be inspected enters a monitor gate, a human body surface monitor inspects radiation contamination of a head part of the human body to be inspected, by moving a head part detector 5 arranged at an upper part of the monitor gate, close to a head part of the human body. At an entrance side of the monitor gate, a human body length classification mean which detect to which human body length classification the human body to be inspected belongs, using optical switches and a card reader, is provided. A detector position adjusting mean adjusting position of the head part detector 5 based on the body length classification data detected by the human body length classification mean, is provided, and moreover, during waiting time, the head detector 5 is arranged between the upper most position of moving stroke thereof and advantage body length of human bodies to be inspected.

36. 发明专利

JPH04216488A BODY SURFACE CONTAMINATION MONITOR 失效
公开(公告)号：JPH04216488A
公开(公告)日：1992-08-06
申请号：JP40260890
申请日：1990-12-17
申请人： TOSHIBA CORP
发明人： ISHIBASHI MITSUO
IPC分类号： G01T1/169 , G01T1/00
摘要： PURPOSE:To make it easy to fix and maintain a radiation detector provided on the upper part of a measurement chamber not by supporting it on the upper fixing plate of the monitor body putting a pantagraph mechanism in between but by lowering the height of the monitor body. CONSTITUTION:In the upper part of a measurement chamber 2, an arm 18 to support a radiation detector 12 is provided and the arm 18 is driven up and down by a driving mechanism 19. The driving mechanism 19 is constituted of a supporting part 20 to support the arm 18, a wire 21 to drive the supporting part 20 up and clown, a driving pulley 22 to turn the wire 21 and a driving motor 24 to drive the pulley 22 by way of a belt 23. When the arm 18 is driven up and down by the driving mechanism 19, the radiation detector 12 supported by the arm 18 moves up and down. Therefore, to place the monitor body 1 in a nuclear facility enables leaving large space between the upper part of the monitor body 1 and the ceiling.

37. 发明专利

JPH02263189A RADIATION DETECTOR 失效
公开(公告)号：JPH02263189A
公开(公告)日：1990-10-25
申请号：JP8534689
申请日：1989-04-04
申请人： TOSHIBA CORP
发明人： ISHIBASHI MITSUO
IPC分类号： G01T1/169
摘要： PURPOSE:To obtain information from the radiation detecting surface without using a display device, etc. by constituting this detector so that a light emitting element is provided jointly between plural radiation detecting elements, and the light emitting element can emit a light beam, on the basis of a radiation detecting signal or display information. CONSTITUTION:As for this radiation detector, a semiconductor detector is provided on a substrate, a radiation detecting medium 22 consisting of a semiconductor, etc. is formed on the substrate 21, and on the radiation detecting surface 22a of the radiation detecting medium 22, plural light emitting elements 25 are provided through an insulator 24. In this state, by fetching the charge generated at the time when a radiant ray is made incident on the radiation detecting medium 22 as a radiation detecting signal, the radiant ray is detected. By selecting an arbitrary light emitting element 25 by a controller 27, sending out a light emitting signal to its light emitting element 25, and allowing its light emitting element 25 to emit a light beam, desired information is displayed on the radiation detecting surface 22a. In such a way, the measurement accuracy of a radiant ray can be improved.

38. 发明专利

JPS5739370A Scintillation detector 失效
标题翻译： SCINTILLATION检测器
公开(公告)号：JPS5739370A
公开(公告)日：1982-03-04
申请号：JP11343880
申请日：1980-08-20
申请人： Toshiba Corp
发明人： ENDOU YORIMASA , ISHIBASHI MITSUO
IPC分类号： G01T1/20 , G01T1/40
CPC分类号： G01T1/40
摘要： PURPOSE:To detect a fault of a photoelectric multiplier easily and exactly, by separately placing an element which emits light by a test pulse, in the vicinity of plural photoelectric multipliers which are used for a plastic scintillator. CONSTITUTION:A scintillation detector is constituted of plural photoelectric multipliers 1 (4 pieces in case of the figure) which are used for making a sensitivity distribution characteristic uniform, a plastic scintillator 2, a light shielding film 3, a reflecting plate 4 and a case 5. In the vicinity of a photoelectric surface 1a, a luminous body 11 such as a light emission diode, etc. having a directivity by a test pulse generated by a pulser 10 is placed separately. A falut is detected through an amplifier 8 and a deciding circuit 9 by irradiating in order the photoelectric multipliers 1. It is also available to irradiate the photoelectric surface 1a separately by an optical fiber from the outside without placing the luminous body in the case. In this regard, even when the photoelectric multiplier is checked by turning it on and off, the same result is obtained. In this way, the photoelectric multiplier is checked exactly and easily as it remains mounted.
摘要翻译：目的：通过将用于测量脉冲发光的元件分开放置在用于塑料闪烁体的多个光电倍增器附近，容易且准确地检测光电倍增管的故障。构成：闪烁检测器由用于使灵敏度分布特性均匀的多个光电倍增器1（图中为4个）构成，塑料闪烁体2，遮光膜3，反射板4和壳体在光电表面1a附近，分别设置具有由脉冲发生器10产生的测试脉冲具有指向性的诸如发光二极管等的发光体11。通过放大器8和判定电路9，通过依次照射光电倍增器1来检测出衰减。还可以从外部将光电表面1a分开照射光纤面而不将发光体放置在外壳中。在这方面，即使通过打开和关闭光电倍增器来检查，也获得相同的结果。以这种方式，光电倍增器在其保持安装时被精确且容易地检查。

39. 发明专利

JP2001153719A ANALYSIS SYSTEM FOR VIBRATION CHARACTERISTIC 失效
公开(公告)号：JP2001153719A
公开(公告)日：2001-06-08
申请号：JP33284799
申请日：1999-11-24
申请人： TOSHIBA CORP
发明人： KAMIMURA TAISUKE , ISHIBASHI MITSUO
IPC分类号： G01H17/00 , G21C17/00
摘要： PROBLEM TO BE SOLVED: To easily conduct a test of the vibration state of an in-plant structure which required a long time from the installation of a device to the evaluation of a measurement and a test result in a short time. SOLUTION: When the installation state of the in-plant structure is inspected and evaluated by measuring the vibration state and temperature of the in-plant structure, data are sent and received by making good use of a radio communication between a handy terminal to which a measuring instrument capable of taking a measurement without contacting a body to be measured is attached and a computer. The measured value is compared and evaluated on the basis of optimum information on material characteristics, etc., of an analytic model and the structure stored when the in-plant structure is designed to automatically update an optimum value matching the measured value.

40. 发明专利

JP2000275347A DUST-RADIATION MONITORING APPARATUS 失效
公开(公告)号：JP2000275347A
公开(公告)日：2000-10-06
申请号：JP8394499
申请日：1999-03-26
申请人： TOSHIBA CORP
发明人： ISHIBASHI MITSUO , YUNOKI AKIRA , ENDO YORIMASA
IPC分类号： G01T1/00 , G01T1/167 , G01T7/00
摘要： PROBLEM TO BE SOLVED: To eliminate a measuring error due to the mixed existence of beams of light from an α-ray detecting layer and a β-ray detecting layer and to eliminate a measuring error due to the absorption of β-rays in the α-ray detecting layer. SOLUTION: In this dust-radiation monitoring apparatus, a radiation which is emitted from dust collected by a dust collection part is detected, and the existence of radioactive contamination is judged. An α-ray detecting part 5 and a β-ray detecting part 5 have a structure which detects α-rays and β-rays independently without being mixed. An α-ray detecting layer and a β-ray detecting layer are arranged on a substantially identical face. An α-ray measuring part 6 and a β-ray measuring part 7 find an α-ray measured value and a β-ray measured value individually on the basis of α-rays and β-rays which are detected independently. In a data processing part 8, the emission ratio, which is found in advance, of α-rays to β-rays, emitted by a natural nuclide is used as a correction factor so as to be multiplied by the α-ray measured value. The value of the β-rays in the natural nuclide is calculated, and the radioactive contamination is judged by using a value obtained by subtracting the calculated value of the β-rays from the β-rays measured value.

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