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1. 发明公开

EP3232227A1 RADIATION MONITOR AND RADIATION MONITORING METHOD 有权
标题翻译：辐射监测和辐射监测方法
公开(公告)号：EP3232227A1
公开(公告)日：2017-10-18
申请号：EP15867600.7
申请日：2015-11-27
申请人： Hitachi, Ltd.
发明人： TADOKORO Takahiro , TOMINAGA Kazuo , UENO Katsunori , OKADA Kouichi , NAGUMO Yasushi , KUWABARA Hitoshi , SASAKI Keisuke
IPC分类号： G01T1/20
CPC分类号： G01T1/20 , G01T7/00
摘要： To provide a radiation monitor capable of simply and accurately measuring the dose rate of radiation by suppressing the risk of explosion or the like. A radiation monitor (100) of the invention includes a radiation emitting element (10) which includes a light emitting part (11) emitting light of an intensity corresponding to a dose rate of incident radiation, an optical fiber (20) which is connected to the radiation emitting element (10) and transmits the light emitted from the light emitting part (11), an electric pulse converter (30) which is connected to the optical fiber (20) and transmits one electric pulse for one photon of the transmitted light, an electric pulse detector (40) which is connected to the electric pulse converter (30) and counts the electric pulse transmitted from the electric pulse converter (30), and an analyzer (50) which is connected to the electric pulse detector (40) and converts the electric pulse count rate obtained by the electric pulse detector (40) into a radiation dose rate.
摘要翻译：本发明提供一种能够通过抑制爆炸等的危险简单且准确地测量放射线的剂量率的放射线监视器。本发明的辐射监测器（100）包括：辐射发射元件（10），其包括发射与入射辐射的剂量率对应的强度的光的发光部件（11）;光纤（20），其连接到所述辐射发射元件（10）并且透射从所述发光部件（11）发射的光;电脉冲转换器（30），其连接到所述光纤（20）并且传输用于所述透射光中的一个光子的一个电脉冲，与电脉冲转换器（30）连接并对从电脉冲转换器（30）发送的电脉冲进行计数的电脉冲检测器（40），以及与电脉冲检测器（40）连接的分析器（50））并将由电脉冲检测器（40）获得的电脉冲计数率转换成辐射剂量率。

2. 发明公开

EP3709060A1 RADIATION MONITOR AND RADIATION MEASUREMENT METHOD 无效
公开(公告)号：EP3709060A1
公开(公告)日：2020-09-16
申请号：EP18875994.8
申请日：2018-08-30
申请人： Hitachi, Ltd.
发明人： TADOKORO Takahiro , UENO Yuichiro , UENO Katsunori , OKADA Kouichi , HATAKEYAMA Shuichi , NAGUMO Yasushi , ITOU Takahiro , SAKAKIBARA Yoshinobu
IPC分类号： G01T1/20
摘要： Provided is a radiation monitor and the like capable of appropriately measuring radiation. A radiation monitor (100) includes: radiation detection units (11, 12); optical fibers (13p, 13q) that transmit light generated by a plurality of radiation detection elements (11a, 12a) to merge; a light detection unit (14) that converts the light after merging guided to the light detection unit into an electric pulse; a measurement device (15) that calculates a dose rate of radiation based on a count rate of the electric pulses; and an analysis/display device (16). Housings (11b, 12b) include a housing (11b) made of a first material and another housing (12b) made of a second material.

3. 发明公开

EP3321714A1 RADIATION MONITOR 有权
标题翻译：辐射监测
公开(公告)号：EP3321714A1
公开(公告)日：2018-05-16
申请号：EP16821171.2
申请日：2016-06-10
申请人： Hitachi, Ltd.
发明人： TADOKORO Takahiro , TOMINAGA Kazuo , UENO Katsunori , OKADA Kouichi , NAGUMO Yasushi , KUWABARA Hitoshi , SASAKI Keisuke
IPC分类号： G01T1/20
摘要： The purpose of the present invention is to provide a radiation monitor that can easily and accurately measure the dosage rate of radiation while inhibiting the risk of explosions and the like, and that can also measure the temperature of a radiation light emitting element itself. The radiation monitor Ml according to the present invention comprises: a radiation light emitting element 10 that contains a rare earth element and that emits light of a plurality of wavelengths by means of incident radiation; an optical fiber 20 that transmits the light emitted from the radiation light emitting element 10; an electrical pulse converter 30 that converts the transmitted light to electrical pulses at each wavelength; an electrical pulse detector 40 that measures the counting rate of electrical pulses at each wavelength using the electrical pulses sent from the electrical pulse converter 30; and an analyzer 50 that computes the dosage rate of radiation and the temperature of the radiation light emitting element 10 by collating the counting rate of electrical pulses measured at each wavelength and the relationship of the counting rate of photons to the temperature of the radiation light emitting element 10 and the dosage rate of radiation stored in a database in advance.
摘要翻译：本发明的目的在于提供一种能够在防止爆炸等的危险的同时容易且准确地测量放射线的投射率，并且还能够测量放射线发光元件自身的温度的放射线监视器。根据本发明的辐射监测器M1包括：辐射发光元件10，其包含稀土元素并且通过入射辐射发射多个波长的光; 传输从辐射发光元件10发射的光的光纤20; 电脉冲转换器30，其将透射光转换为每个波长的电脉冲; 电脉冲检测器40，其使用从电脉冲转换器30发送的电脉冲来测量每个波长处的电脉冲的计数率; 以及分析器50，其通过对照在每个波长处测量的电脉冲的计数率和光子的计数率与发射辐射的光的温度的关系来计算辐射剂量率和辐射发光元件10的温度元素10和预先存储在数据库中的辐射剂量率。

4. 发明公开

EP4332994A1 RADIONUCLIDE PRODUCTION SYSTEM AND RADIONUCLIDE PRODUCTION METHOD 审中-实审
公开(公告)号：EP4332994A1
公开(公告)日：2024-03-06
申请号：EP22795357.7
申请日：2022-03-17
申请人： Hitachi, Ltd.
发明人： TADOKORO Takahiro , UENO Yuichiro , KANI Yuuko , NISHIDA Kento , WATANABE Takahiro , SASAKI Takahiro , ITO Masaharu
IPC分类号： G21G4/08 , G21G1/12 , G21K5/08
摘要： The invention provides a radionuclide production system and a radionuclide production method capable of efficiently producing a radionuclide by a small, lightweight, and highly safe device. A radionuclide production system (100) is a radionuclide production system for producing a radionuclide by irradiating a liquid containing a raw material nuclide with bremsstrahlung radiation, the radionuclide production system including: a circulation path (10) configured to allow a liquid (11) containing a raw material nuclide to circulate; and a radiation generation unit (20) configured to generate bremsstrahlung radiation (22) to irradiate the liquid (11). A metal member (50) containing a pure metal of a platinum group or an alloy of the platinum group is provided at an upper portion in the circulation path (10). In a radionuclide production method, the raw material nuclide contained in the liquid (11) is transformed to the radionuclide by irradiating the liquid (11) with the bremsstrahlung radiation (22) while circulating the liquid (11) containing the raw material nuclide in the circulation path (10), and oxygen and hydrogen generated due to radiolysis of the liquid (11) are removed by a recombination reaction with a metal member (50) formed of a pure metal of a platinum group or an alloy of the platinum group at an upper portion in the circulation path (10).

5. 发明授权

EP3467843B1 REACTOR OUTPUT MONITORING DEVICE 有权
公开(公告)号：EP3467843B1
公开(公告)日：2020-08-05
申请号：EP17802421.2
申请日：2017-03-24
申请人： Hitachi, Ltd.
发明人： OKADA Kouichi , TADOKORO Takahiro , FUSHIMI Atsushi , NAGUMO Yasushi , UENO Katsunori , UENO Yuichiro , HATAKEYAMA Shuichi
IPC分类号： G21C17/10 , G21C17/108

6. 发明公开

EP3467843A1 REACTOR OUTPUT MONITORING DEVICE 有权
公开(公告)号：EP3467843A1
公开(公告)日：2019-04-10
申请号：EP17802421.2
申请日：2017-03-24
申请人： Hitachi, Ltd.
发明人： OKADA Kouichi , TADOKORO Takahiro , FUSHIMI Atsushi , NAGUMO Yasushi , UENO Katsunori , UENO Yuichiro , HATAKEYAMA Shuichi
IPC分类号： G21C17/10
摘要： The object of the present invention resides in provision of a reactor power monitoring apparatus suitable for monitoring of local power in an axial direction of a level similar to that of an LPRM.
In order to solve the subject described above, one of representative nuclear instrumentation system of the present invention includes a plurality of metal-containing plates installed at different locations in an axial direction in the inside of a nuclear instrumentation tube and formed from principal components different from each other, and a gamma ray detection apparatus installed outside a reactor pressure vessel and configured to measure gamma rays emitted by a nuclear reaction between neutrons generated in the reactor and the metal-containing plates.
According to the present invention, it is possible to provide a reactor power monitoring apparatus suitable for monitoring of local power in an axial direction of a level similar to that of an LPRM.

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