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    • 1. 发明专利
    • Radioactivity analyser and radioactivity analytic method
    • 放射性分析仪和放射性分析方法
    • JP2014157132A
    • 2014-08-28
    • JP2013029241
    • 2013-02-18
    • Mitsubishi Electric Corp三菱電機株式会社
    • NISHIZAWA HIROSHIHAYASHI MASATERUAZUMA TETSUSHINAKAJIMA HAJIMEINOMATA KENJINAKANISHI SHOICHIAIBA TOSHIHIDE
    • G01T1/167G01T1/17G01T1/36G01T7/00
    • PROBLEM TO BE SOLVED: To measure a radioactivity or a radioactive concentration of a measuring object at high speed with high accuracy even when the shape or density of a detection object is different.SOLUTION: A radioactivity analyser comprises: a database (11) for storing beforehand detector response functions; a response function selection part (10) for extracting the detector response function according to a pulse height distribution passing through a measuring object and measured by a detector (3); and a reverse problem operation part (6) for analysing and quantitating radioactive nuclides contained in the measuring object by inverse problem calculation. The database stores beforehand a plurality of detector response functions according to parameter information including at least one of a density, shape, center of gravity, and distance of the measuring object. The radioactivity analyser comprises, furthermore, parameter determination parts (8, 9) for calculating parameter information on the basis of the pulse height distribution. The response function selection part extracts the detector response function according to the parameter information from the database.
    • 要解决的问题:即使检测对象的形状或密度不同,也可以高精度地测量测量对象的放射性或放射性浓度。解决方案:放射性分析仪包括:数据库(11),用于存储 预先检测器响应功能; 响应函数选择部分(10),用于根据穿过测量对象并由检测器(3)测量的脉冲高度分布提取检测器响应函数; 以及用于通过逆问题计算分析和定量包含在测量对象中的放射性核素的反向问题操作部分(6)。 数据库根据包括密度,形状,重心和测量对象的距离中的至少一个的参数信息预先存储多个检测器响应函数。 此外,放射性分析器还包括用于基于脉冲高度分布来计算参数信息的参数确定部分(8,9)。 响应函数选择部分根据来自数据库的参数信息提取检测器响应函数。
    • 2. 发明专利
    • Radiation measuring instrument
    • 辐射测量仪器
    • JP2014001951A
    • 2014-01-09
    • JP2012135817
    • 2012-06-15
    • Mitsubishi Electric Corp三菱電機株式会社
    • HAYASHI MASATERUNISHIZAWA HIROSHINAKAJIMA HAJIME
    • G01T1/17
    • PROBLEM TO BE SOLVED: To provide a radiation measuring instrument which removes noise components to be capable of accurate radiation measurement.SOLUTION: A combining circuit 42 outputs an analog signal pulse resulting from combination of an analog signal pulse and a pulse obtained by delaying the analog signal pule by a fixed time. A gate generation circuit 43 generates a gate signal which occurs at a delay timing comparable with the fixed time after the occurrence timing of the analog signal pulse and continues for a time longer than the fixed time. A combination gate circuit 44 combines the output of the combining circuit 42 and the gate signal of the gate generation circuit 43, and a second pulse height discrimination circuit 45 discriminates a pulse meeting a prescribed pulse height condition out of the combination output. A double count removal circuit 46 removes double count occurring in the second pulse height discrimination circuit 45.
    • 要解决的问题:提供一种能够消除能够进行精确辐射测量的噪声分量的辐射测量仪器。解决方案:组合电路42输出由模拟信号脉冲和通过延迟模拟信号而获得的脉冲的组合而产生的模拟信号脉冲 信号pule固定时间。 栅极产生电路43产生与模拟信号脉冲的发生定时之后的固定时间相当的延迟定时发生的栅极信号,并且持续比固定时间长的时间。 组合门电路44组合组合电路42的输出和门产生电路43的门信号,第二脉冲高度鉴别电路45从组合输出中鉴别满足规定脉冲高度状态的脉冲。 双重计数去除电路46除去在第二脉冲高度识别电路45中发生的双重计数。
    • 3. 发明专利
    • Radiation measuring device and diagnostic method thereof
    • 辐射测量装置及其诊断方法
    • JP2011123009A
    • 2011-06-23
    • JP2009282854
    • 2009-12-14
    • Mitsubishi Electric Corp三菱電機株式会社
    • HAYASHI MASATERUMOGI KENICHINAKANISHI SHOICHI
    • G01T1/17
    • G01T1/17
    • PROBLEM TO BE SOLVED: To provide a radiation measurement apparatus and a diagnostic method thereof, capable of performing self-diagnosis of high accuracy, on-line for count rate measurement which is essential for radiation measurement using a simple constitution. SOLUTION: The radiation measurement apparatus includes an operation means 7, such that the counted value of a counting means 6 inputting digital pulse from a pulse height discriminating means 2, to count at a fixed cycle and an integrated value of an addition-subtraction integrated means 3, where the digital pulse is added and the feedback pulse is subtracted are input, respectively; and a first count rate is determined, based on the counted value of counting means 6 and the integrated value of the addition-subtraction integrated means 3, while a second count rate is obtained based on the integrated value of the addition-subtraction integrated means 3 and then diagnoses soundness of the addition-subtraction integrated means 3 to be output, by comparing the first count rate with the second count rate. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供一种能够以简单的结构进行辐射测量所必需的计数率测量的高精度的在线自动诊断的辐射测量装置及其诊断方法。 解决方案:辐射测量装置包括操作装置7,使得从脉冲高度识别装置2输入数字脉冲的计数装置6的计数值以固定周期计数, 分别输入数字脉冲并减去反馈脉冲的减法积分装置3; 并且基于计数装置6的计数值和加减运算积分装置3的积分值来确定第一计数率,同时基于加减运算综合装置3的积分值获得第二计数率 然后通过将第一计数率与第二计数率进行比较来诊断要输出的加减运算积分装置3的健全性。 版权所有(C)2011,JPO&INPIT
    • 5. 发明专利
    • Radioactivity inspection apparatus
    • 放射性检查装置
    • JP2013205364A
    • 2013-10-07
    • JP2012077475
    • 2012-03-29
    • Mitsubishi Electric Corp三菱電機株式会社
    • HAYASHI MASATERUNISHIZAWA HIROSHIAZUMA TETSUSHINAKAJIMA HAJIME
    • G01T1/167G01T1/169G01T1/20G01T1/203
    • PROBLEM TO BE SOLVED: To provide a radioactivity inspection apparatus capable of preventing contamination of a measurement sample and a detector and capable of detecting α rays and β rays of low energy whose measurement is difficult conventionally.SOLUTION: A radioactivity inspection apparatus detects radiation generating a radioactive substance adhering to an inspection object 1 and includes a scintillation container 2 formed of a scintillation material and housing the inspection object 1, a photodetector 4 for receiving scintillation light generated by the scintillation container 2 and outputting an electrical signal, and a shading housing 5 provided outside the scintillation container 2 and preventing external light from making incident into the photodetector 4.
    • 要解决的问题:提供一种能够防止测量样品和检测器的污染并能够检测α射线和/或bgr的放射性检查装置; 放射性检查装置检测产生附着在检查对象物1上的放射性物质的放射性物质的放射性物质的放射性物质的放射性物质,由闪光体构成的闪烁体容纳体2,容纳检查对象物1, 接收由闪烁容器2产生的闪烁光并输出电信号,以及设置在闪烁容器2外部并防止外部光入射到光电检测器4中的遮光壳体5。
    • 6. 发明专利
    • Radioactive gas monitor
    • 放射性气体监测仪
    • JP2011180061A
    • 2011-09-15
    • JP2010046423
    • 2010-03-03
    • Mitsubishi Electric Corp三菱電機株式会社
    • MOGI KENICHIHAYASHI MASATERU
    • G01T1/167G01T7/00
    • PROBLEM TO BE SOLVED: To provide a radioactive gas monitor capable of precisely measuring even a rare gas which is to be measured by making an instruction accurately follow a change in radiation concentration of an exhaust gas at a headstream point, to suppress dropping of pressure of a sample gas. SOLUTION: A sample container 52 of a detecting part 5 which shares a high measurement range includes a container bottom plate 54 containing an inlet nozzle 56 for guiding-in the sample gas and an exhaust nozzle 57 for exhausting the sample gas, and a detachable container cap 55 which is attached to the container bottom plate 54. The container cap 55 includes a detachable collimator 58 which reduces β ray released from the sample gas to a wanted rate and causes it to be incident on a radiation detector 51. The collimator 58 is arranged in projection toward the container bottom plate 54 so as not to significantly prevent a stream of the sample gas, with an incidence window 59 provided to its tip end. The detection efficiency of the radiation detector 51 is determined by the inside diameter of the collimator 58 and such an effective volume as viewed from the radiation detector 51 in the gap between the incidence window 59 and the bottom plate 54. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种放射性气体监测器,其能够通过准确地跟踪在前端点处的废气的辐射浓度的变化来精确地测量待测量的稀有气体,以抑制滴落 的样品气体的压力。 解决方案:具有高测量范围的检测部分5的样本容器52包括容纳底板54,容器底板54包含用于引导样品气体的入口喷嘴56和用于排出样品气体的排气喷嘴57,以及 一个安装在容器底板54上的一个可拆卸的容器盖55.容器盖55包括一个可拆卸的准直器58,它将从试样气体释放的β射线减少到一个所需的速度并使其入射到辐射探测器51上。 准直器58朝向容器底板54突出设置,以便不显着地防止样品气体的流动,其入口窗口59设置在其顶端。 辐射检测器51的检测效率由准直器58的内径和从入射窗59与底板54之间的间隙中的辐射检测器51观察到的有效体积来确定。版权所有: C)2011,JPO&INPIT
    • 7. 发明专利
    • 放射能分析装置および放射能分析方法
    • 放射性分析装置和放射性分析方法
    • JP2015031675A
    • 2015-02-16
    • JP2013163859
    • 2013-08-07
    • 三菱電機株式会社Mitsubishi Electric Corp
    • NAKAJIMA HAJIMENISHIZAWA HIROSHIHAYASHI MASATERUAZUMA TETSUSHIINOMATA KENJINAKANISHI SHOICHIAIBA TOSHIHIDE
    • G01T1/167G01T1/16G01T1/17
    • 【課題】試料毎に形状が不定形の被測定体に対しても、最適な検出器応答関数を算出し、この応答関数を用いて逆問題演算を行うことにより、被測定体を破壊することなく全数検査を行うとともに、放射線のエネルギーおよび強度を高精度に測定することができる放射能分析装置および放射能分析方法を得る。【解決手段】補正応答関数生成部は、被測定体の形状情報を取得する被測定体情報取得部で取得された被測定体の形状情報に基づいて、被測定体の形状情報に応じた応答関数の補正値を、補正応答関数として演算し、放射能値演算部は、被測定体から放射される放射線を検出し、出力パルスに応じたパルス波高分布を出力する放射線検出部から出力されたパルス波高分布に対して、補正応答関数生成部で演算された補正応答関数を用いた逆問題演算を行うことにより、被測定体に含まれる放射能量を演算する。【選択図】図1
    • 要解决的问题:为了获得即使对于每个样品要测量的不确定形状物体也可以计算最佳检测器响应函数的放射性分析装置和放射性分析方法,并且在不损害对象的情况下对待测量的对象进行全面检查 通过使用响应函数进行逆问题计算并且以高精度测量辐射的能量和强度来测量。解决方案:校正响应函数生成部分根据对象的形状信息来计算响应函数的校正值 基于被测量物体信息取得部获取的被测量物体的形状信息,求出被测量物体的形状信息,作为校正响应函数进行测量。 放射性量计算部分检测从被测量对象发射的辐射,并且通过使用由校正响应函数生成部分计算出的校正响应函数执行逆问题计算来计算被测量对象中包含的放射性量 对于从放射线检测部输出的根据输出脉冲输出脉冲高度分布的脉冲高度分布。
    • 8. 发明专利
    • Radioactivity measurement container
    • 放射性测量容器
    • JP2014163745A
    • 2014-09-08
    • JP2013033404
    • 2013-02-22
    • Mitsubishi Electric Corp三菱電機株式会社
    • AZUMA TETSUSHITAKUSHIMA SHUHAYASHI MASATERUNISHIZAWA HIROSHINAKAJIMA HAJIMEINOMATA KENJI
    • G01T7/00G01T7/02
    • PROBLEM TO BE SOLVED: To obtain a radioactivity measurement container that enables improvement in reliability of a measurement result of a radioactivity measurement value.SOLUTION: A radioactivity measurement container 10 for having a measurement object specimen 1 filled and for measuring radioactivity has: a radioactivity detector insertion recessed part 11 for arranging a sensor section 51 so that a reference specimen center-of-gravity position 101 serving as a geometric center of gravity when a measurement object specimen 1 having homogeneity in density is filled up to a preliminary specified volume and the specimen is uniformly distributed, and a sensor section center-of-gravity position 100 of the sensor section 51 of a radioactivity detector 50 having sensitivity to radioactive rays coincide or a gap 80 between these center of gravity positions falls within a predetermined distance range.
    • 要解决的问题:获得能够提高放射性测量值的测量结果的可靠性的放射性测量容器。解决方案:用于测量被测物体1被填充并用于测量放射性的放射性测量容器10具有:放射性检测器 插入凹部11,用于布置传感器部51,使得当具有密度均匀性的测量对象样本1填充到初步指定体积时,用作几何重心的参考样本重心位置101, 均匀分布,对放射性射线敏感的放射性检测器50的传感器部51的重心位置传感器部分100与重心位置之间的间隙80落在规定的距离范围内。
    • 9. 发明专利
    • Radioactivity analysis device
    • 放射性分析装置
    • JP2014066518A
    • 2014-04-17
    • JP2012209721
    • 2012-09-24
    • Mitsubishi Electric Corp三菱電機株式会社
    • HAYASHI MASATERUAZUMA TETSUSHINISHIZAWA HIROSHINAKAJIMA HAJIMEINOMATA KENJINAKANISHI SHOICHIAIBA TOSHIHIDE
    • G01T1/167G01T1/36
    • PROBLEM TO BE SOLVED: To provide a radioactivity analysis device that includes a system capable of automatically analyzing a radioactive nuclide contained in a measurement sample in a short time and has both high detection efficiency and high analysis accuracy of radiation.SOLUTION: The radioactivity analysis device 100 includes a radiation detector 10 (60) for detecting the radiation to be measured emitted from a measurement sample 1 and a radiation analysis section 20 for analyzing the radiation to be measured on the basis of an output from a detector 2. The analysis section 20 includes: pulse height analyzing means 22 for extracting pulse height distribution from an output from the detector 10; response function calculating means 23 for calculating a response function of the detector 10 for each radioactive nuclide contained in the sample 1; and inverse problem operating means 25 that applies an inverse problem operation to the pulse height distribution using the response function for each nuclide and determines the radioactive intensity for each nuclide. When cascade γ rays enter the detector 10, the response function calculating means 23 calculates a response function corresponding to an energy addition effect.
    • 要解决的问题:提供一种放射性分析装置,其包括能够在短时间内自动分析测定样品中所含的放射性核素的系统,并且具有高的检测效率和高的辐射分析精度。解决方案:放射性分析装置 100包括用于检测从测量样品1发射的待测辐射的辐射检测器10(60)和用于基于检测器2的输出分析待测辐射的辐射分析部分20.分析部分20 包括:用于从检测器10的输出提取脉冲高度分布的脉冲高度分析装置22; 响应函数计算装置23,用于计算包含在样本1中的每个放射性核素的检测器10的响应函数; 以及使用每个核素的响应函数对脉冲高度分布应用逆问题操作的反问题操作装置25,并确定每个核素的放射强度。 当级联γ射线进入检测器10时,响应函数计算装置23计算与能量相加效应相对应的响应函数。