Pub Date : 2019-11-01DOI: 10.1109/ICEMI46757.2019.9101410
Jiang Dong, Zhao Liping, Zhao Yanchao, Wang Deyu
The Z-type temperature sensor measuring circuit and shaping circuit were designed for nonlinear problems exist in Z-type temperature sensor. The output frequencies of Z-type temperature sensor were measured at different temperatures. Which dispersion and nonlinear characteristics were analyzed. Linear compensation principle and its significance were explained. Linear output values corresponds precisely with the measured temperature values through nonlinear curve fitting. Test shows that the design of the Z-type temperature sensor error is 2 ‰. Accuracy has been improved. The nonlinear compensation method has practical value for large scale manufacture of Z-sensor.
{"title":"Curve fitting and piecewise linear method for Z-type temperature sensor","authors":"Jiang Dong, Zhao Liping, Zhao Yanchao, Wang Deyu","doi":"10.1109/ICEMI46757.2019.9101410","DOIUrl":"https://doi.org/10.1109/ICEMI46757.2019.9101410","url":null,"abstract":"The Z-type temperature sensor measuring circuit and shaping circuit were designed for nonlinear problems exist in Z-type temperature sensor. The output frequencies of Z-type temperature sensor were measured at different temperatures. Which dispersion and nonlinear characteristics were analyzed. Linear compensation principle and its significance were explained. Linear output values corresponds precisely with the measured temperature values through nonlinear curve fitting. Test shows that the design of the Z-type temperature sensor error is 2 ‰. Accuracy has been improved. The nonlinear compensation method has practical value for large scale manufacture of Z-sensor.","PeriodicalId":419168,"journal":{"name":"2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127804004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/ICEMI46757.2019.9101692
Lu Yesheng, Cui Junning, Bian Xingyuan, Zhao Yamin, Tan Jiubin
A circulating cooling water machine using agile bidirectional cooling and heating power control method is developed to produce circulating cooling water of high temperature stability and good dynamic performance. Cooling module based on thermoelectric cooling and multilayer compact structure is proposed to achieve cooling power output resolution at sub-watt level and quick response. Heating module based on a compact solenoid-in-tube structure is proposed to achieve heating power output with sub-watt level resolution and quick response. Experiments indicate that temperature stability of ± 3 mK, regulating resolution of 5 mK and regulating time of 128 s corresponding to 1 K step of circulating cooling water temperature are achieved with the developed machine. Thus, the developed machine can satisfy the challenging requirements of precision manufacturing.
{"title":"Ultraprecision circulating cooling water machine using bidirectional control of cooling and heating power","authors":"Lu Yesheng, Cui Junning, Bian Xingyuan, Zhao Yamin, Tan Jiubin","doi":"10.1109/ICEMI46757.2019.9101692","DOIUrl":"https://doi.org/10.1109/ICEMI46757.2019.9101692","url":null,"abstract":"A circulating cooling water machine using agile bidirectional cooling and heating power control method is developed to produce circulating cooling water of high temperature stability and good dynamic performance. Cooling module based on thermoelectric cooling and multilayer compact structure is proposed to achieve cooling power output resolution at sub-watt level and quick response. Heating module based on a compact solenoid-in-tube structure is proposed to achieve heating power output with sub-watt level resolution and quick response. Experiments indicate that temperature stability of ± 3 mK, regulating resolution of 5 mK and regulating time of 128 s corresponding to 1 K step of circulating cooling water temperature are achieved with the developed machine. Thus, the developed machine can satisfy the challenging requirements of precision manufacturing.","PeriodicalId":419168,"journal":{"name":"2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129210625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/ICEMI46757.2019.9101521
Wang Chengzhuo, Liu Suyang, Guo Xiye, Yang Jun
This paper studies the network topology dynamic problem of the laser inter-satellite link in the navigation constellation. Since the reestablishment time of the laser inter-satellite link is relatively long, this paper envisages that multiple laser intersatellite links reestablish links at the same time when the network topology changes. Therefore, it is necessary to maintain certain performance during the change. The inter-satellite link of the navigation constellation needs to balance the communication and the inter-satellite orbit determination performance. This paper proposes the link transmission cost based on the inter-satellite link distance and the amount of data transmitted on the link to measure the communication performance of the inter-satellite link, and the position dilution of precision to measure the performance of the orbit determination. In this paper, a multi-objective optimization model is established, aiming to improve the performance of the communication and inter-satellite orbit determination. The model used genetic algorithm to solve the problem. The simulation results have shown that the inter-satellite link network topology witnessed an obvious improvement in both the communication performance and the orbit determination performance, and has good communication performance when network changes.
{"title":"Dynamic optimization of laser inter-satellite link network topology based on genetic algorithm","authors":"Wang Chengzhuo, Liu Suyang, Guo Xiye, Yang Jun","doi":"10.1109/ICEMI46757.2019.9101521","DOIUrl":"https://doi.org/10.1109/ICEMI46757.2019.9101521","url":null,"abstract":"This paper studies the network topology dynamic problem of the laser inter-satellite link in the navigation constellation. Since the reestablishment time of the laser inter-satellite link is relatively long, this paper envisages that multiple laser intersatellite links reestablish links at the same time when the network topology changes. Therefore, it is necessary to maintain certain performance during the change. The inter-satellite link of the navigation constellation needs to balance the communication and the inter-satellite orbit determination performance. This paper proposes the link transmission cost based on the inter-satellite link distance and the amount of data transmitted on the link to measure the communication performance of the inter-satellite link, and the position dilution of precision to measure the performance of the orbit determination. In this paper, a multi-objective optimization model is established, aiming to improve the performance of the communication and inter-satellite orbit determination. The model used genetic algorithm to solve the problem. The simulation results have shown that the inter-satellite link network topology witnessed an obvious improvement in both the communication performance and the orbit determination performance, and has good communication performance when network changes.","PeriodicalId":419168,"journal":{"name":"2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127801381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/ICEMI46757.2019.9101518
Wang Zhenya, Yong Yingqiong, Zheng Benchang, Lu Ying
Prognostics and systems health management (PHM) have been manifested the pivotal role for guaranteeing the on-orbit service capacity of space equipment with high reliability, high security and maintainability. Considering the limitation of spatial information bandwidth and initial information, few shot learning based incremental fault diagnosis provides a new way for on-line fault detection of on-orbit equipment. In this paper, an incremental fault diagnosis method for on-orbit equipment based on cut edge weight estimation is proposed by combining the framework of collaborative learning and the idea of graph theory data editing. The experiment of applying above method to space actuating system was also carried out.
{"title":"Incremental fault diagnosis method for space on-orbit equipment","authors":"Wang Zhenya, Yong Yingqiong, Zheng Benchang, Lu Ying","doi":"10.1109/ICEMI46757.2019.9101518","DOIUrl":"https://doi.org/10.1109/ICEMI46757.2019.9101518","url":null,"abstract":"Prognostics and systems health management (PHM) have been manifested the pivotal role for guaranteeing the on-orbit service capacity of space equipment with high reliability, high security and maintainability. Considering the limitation of spatial information bandwidth and initial information, few shot learning based incremental fault diagnosis provides a new way for on-line fault detection of on-orbit equipment. In this paper, an incremental fault diagnosis method for on-orbit equipment based on cut edge weight estimation is proposed by combining the framework of collaborative learning and the idea of graph theory data editing. The experiment of applying above method to space actuating system was also carried out.","PeriodicalId":419168,"journal":{"name":"2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122411779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/ICEMI46757.2019.9101656
Zhang Bo, L. Jun, Liu Li, Gao Qi, Cui Xiuhai
With the increasing demand for test data and increasing timeliness requirement of the satellite on-orbit test system, the traditional satellite on-orbit test system exposes the problem of insufficient rate, low efficiency and large software resource overhead during data transmission between units in the system. Aiming at problem stand above, this paper proposes a high-speed transmission channel based on serial Rapid IO (SRIO) protocol to realize data transmission between units of the system. The proposed high-speed data transmission channel uses SRIO protocol and DMA technology, based on the ZYNQ MPSoC, to design the data transmission channel between the information processing unit and the data storage-unit. Finally, we tested two Xilinx Zynq-7000 SoC Devices, and built 4 SRIO channels between boards developed by the laboratory. Under the condition of less software resources, the single-channel transmission speed can reach 4.4Gb/s and the transmission efficiency is over 88%. The result indicates that the proposed channel has the characteristics of high speed, high efficiency, light weight and high reliability.
{"title":"Design of high-speed information channel for satellite test based on serial Rapid I/O","authors":"Zhang Bo, L. Jun, Liu Li, Gao Qi, Cui Xiuhai","doi":"10.1109/ICEMI46757.2019.9101656","DOIUrl":"https://doi.org/10.1109/ICEMI46757.2019.9101656","url":null,"abstract":"With the increasing demand for test data and increasing timeliness requirement of the satellite on-orbit test system, the traditional satellite on-orbit test system exposes the problem of insufficient rate, low efficiency and large software resource overhead during data transmission between units in the system. Aiming at problem stand above, this paper proposes a high-speed transmission channel based on serial Rapid IO (SRIO) protocol to realize data transmission between units of the system. The proposed high-speed data transmission channel uses SRIO protocol and DMA technology, based on the ZYNQ MPSoC, to design the data transmission channel between the information processing unit and the data storage-unit. Finally, we tested two Xilinx Zynq-7000 SoC Devices, and built 4 SRIO channels between boards developed by the laboratory. Under the condition of less software resources, the single-channel transmission speed can reach 4.4Gb/s and the transmission efficiency is over 88%. The result indicates that the proposed channel has the characteristics of high speed, high efficiency, light weight and high reliability.","PeriodicalId":419168,"journal":{"name":"2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122901412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/ICEMI46757.2019.9101494
Shi Xin, Tian Wenbin
The energy consumption of industrial buildings continues to increase. Improving the energy efficiency of buildings and effectively reducing energy consumption are urgent problems to be solved. In order to effectively evaluate the energy consumption of industrial buildings, this paper proposes a method for constructing the indoor energy flow state model of industrial buildings. The state of energy flow in the building is described by the state of temperature, humidity and wind speed. The control space adopts PCA, and the global space adopts KPCA to extract energy flow state characteristic parameters, then K-means cluster it. The clustering areas are defined as energy nodes, then extracted fusion points and stable points from energy nodes to describe energy flow state. Comparative experiments were carried out with the original temperature and humidity monitoring model of industrial buildings. Based on CFD, the model ensure the accuracy, the effective coverage is increased by 20%, and the amount of information feedback is reduced by 55%.
{"title":"An energy node-based modelling method for indoor energy flow state of industrial buildings","authors":"Shi Xin, Tian Wenbin","doi":"10.1109/ICEMI46757.2019.9101494","DOIUrl":"https://doi.org/10.1109/ICEMI46757.2019.9101494","url":null,"abstract":"The energy consumption of industrial buildings continues to increase. Improving the energy efficiency of buildings and effectively reducing energy consumption are urgent problems to be solved. In order to effectively evaluate the energy consumption of industrial buildings, this paper proposes a method for constructing the indoor energy flow state model of industrial buildings. The state of energy flow in the building is described by the state of temperature, humidity and wind speed. The control space adopts PCA, and the global space adopts KPCA to extract energy flow state characteristic parameters, then K-means cluster it. The clustering areas are defined as energy nodes, then extracted fusion points and stable points from energy nodes to describe energy flow state. Comparative experiments were carried out with the original temperature and humidity monitoring model of industrial buildings. Based on CFD, the model ensure the accuracy, the effective coverage is increased by 20%, and the amount of information feedback is reduced by 55%.","PeriodicalId":419168,"journal":{"name":"2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123028952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/ICEMI46757.2019.9101803
L. Liwei, Zhao Zijun, Xu Qian, Wu Liang
Temperature variation will lead to expansion or contraction of different components in the optical system of aerospace camera and change of refractive index of optical materials, which will bring changes in parameters in the optical system, thus affecting the camera. For temperature variation and the parameters of the theoretical study is less, in this paper, through establishing the model of image point drift is put forward based on the change of temperature change and the lens optical system parameters of BP neural network model, parameter variation within the temperature variation and the fitting results show that the model can be estimated by temperature variation parameter variation. hange.
{"title":"Study on BP neural network model of optical system parameters based on temperature variation","authors":"L. Liwei, Zhao Zijun, Xu Qian, Wu Liang","doi":"10.1109/ICEMI46757.2019.9101803","DOIUrl":"https://doi.org/10.1109/ICEMI46757.2019.9101803","url":null,"abstract":"Temperature variation will lead to expansion or contraction of different components in the optical system of aerospace camera and change of refractive index of optical materials, which will bring changes in parameters in the optical system, thus affecting the camera. For temperature variation and the parameters of the theoretical study is less, in this paper, through establishing the model of image point drift is put forward based on the change of temperature change and the lens optical system parameters of BP neural network model, parameter variation within the temperature variation and the fitting results show that the model can be estimated by temperature variation parameter variation. hange.","PeriodicalId":419168,"journal":{"name":"2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124036059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/ICEMI46757.2019.9101629
Pan Jihui
With the development of high altitude long endurance UAV, Flight Control System in high altitude long endurance UAV must have so strong failure-tolerant ability that it can improve the whole system reliability. Using redundancy technique can extremely improve failure-tolerant and reliability of flight control system. Compared among civil and military aircraft and UAV, the architectures and redundancy management of fault-tolerant flight control computer (FCC) systems are introduced. Then, give a new architectures and redundancy management of fault-tolerant FCC systems for high altitude long endurance UAV. The experimental results show that the system meets the UAV’s demand of high reliability, low cost and good expansibility, maximize the utilization of system resources and effectively improve the fault tolerant capability of airborne computer and the reliability of sensor subsystem. With fault injection test method, the results show that the fault tolerant methods improve fault detection rate and fault isolation rate.
{"title":"Research on fault-tolerant flight control computer for unmanned air vehicle","authors":"Pan Jihui","doi":"10.1109/ICEMI46757.2019.9101629","DOIUrl":"https://doi.org/10.1109/ICEMI46757.2019.9101629","url":null,"abstract":"With the development of high altitude long endurance UAV, Flight Control System in high altitude long endurance UAV must have so strong failure-tolerant ability that it can improve the whole system reliability. Using redundancy technique can extremely improve failure-tolerant and reliability of flight control system. Compared among civil and military aircraft and UAV, the architectures and redundancy management of fault-tolerant flight control computer (FCC) systems are introduced. Then, give a new architectures and redundancy management of fault-tolerant FCC systems for high altitude long endurance UAV. The experimental results show that the system meets the UAV’s demand of high reliability, low cost and good expansibility, maximize the utilization of system resources and effectively improve the fault tolerant capability of airborne computer and the reliability of sensor subsystem. With fault injection test method, the results show that the fault tolerant methods improve fault detection rate and fault isolation rate.","PeriodicalId":419168,"journal":{"name":"2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121279683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/ICEMI46757.2019.9101433
Zhao Dongfang, Kang Wenjing, Li Tao, Li Gongliang
With the rapid development of the automobile industry, the demand for autonomous driving becomes more and more urgent, and the traffic sign recognition technology in autonomous driving is an indispensable technology. This paper proposes a GoogLeNet based convolutional neural network for traffic signs. This convolutional neural network improves each of the underlying Inception Modules and adds the Batch Normalization layer, effectively avoiding over-fitting of the network. We use a sparse structure that conforms to the Hebbain principle to reduce the parameters and improve the generalization ability of the network, which can extract the features of the image more accurately. Meanwhile, the network also reduces the parameters of the full connection layer by 20 times through the continuous two-layer pooling layer, which greatly speeds up the network training. Finally, the network is trained using the GTSRB data set and the classification accuracy rate can reach 98%. At the same time, we also verified the validity of the network on the MNIST dataset and the pneumonia dataset. The classification accuracy rate can reach 100% on the above two datasets. Experimental results on the above data sets show the validity of the convolutional neural network.
{"title":"Traffic sign classification network using inception module","authors":"Zhao Dongfang, Kang Wenjing, Li Tao, Li Gongliang","doi":"10.1109/ICEMI46757.2019.9101433","DOIUrl":"https://doi.org/10.1109/ICEMI46757.2019.9101433","url":null,"abstract":"With the rapid development of the automobile industry, the demand for autonomous driving becomes more and more urgent, and the traffic sign recognition technology in autonomous driving is an indispensable technology. This paper proposes a GoogLeNet based convolutional neural network for traffic signs. This convolutional neural network improves each of the underlying Inception Modules and adds the Batch Normalization layer, effectively avoiding over-fitting of the network. We use a sparse structure that conforms to the Hebbain principle to reduce the parameters and improve the generalization ability of the network, which can extract the features of the image more accurately. Meanwhile, the network also reduces the parameters of the full connection layer by 20 times through the continuous two-layer pooling layer, which greatly speeds up the network training. Finally, the network is trained using the GTSRB data set and the classification accuracy rate can reach 98%. At the same time, we also verified the validity of the network on the MNIST dataset and the pneumonia dataset. The classification accuracy rate can reach 100% on the above two datasets. Experimental results on the above data sets show the validity of the convolutional neural network.","PeriodicalId":419168,"journal":{"name":"2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128722420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/ICEMI46757.2019.9101519
Guo Siming, Wan PeiWei, Wang Ji, Wu Jinjie, Zhang Jian
Absolute measurement of high fluence rate X-ray dose was required in thermonuclear fusion research and plasma diagnostic measurement. An ionization chamber used for the reproducibility of air-kerma in high fluence rate X-rays was designed, and the monoenergetic X-rays of (6-20) keV were absolutely measured on Beijing Synchrotron Radiation Facility. The air attenuation and recombination correction factors of the free-air ionization chamber were obtained experimentally. Thus, the air-kerma for the $(6 sim 20)$ keV monoenergetic X-rays can be determined.
{"title":"Measurement of air attenuation and recombination correction factors in synchrotron radiation X-rays","authors":"Guo Siming, Wan PeiWei, Wang Ji, Wu Jinjie, Zhang Jian","doi":"10.1109/ICEMI46757.2019.9101519","DOIUrl":"https://doi.org/10.1109/ICEMI46757.2019.9101519","url":null,"abstract":"Absolute measurement of high fluence rate X-ray dose was required in thermonuclear fusion research and plasma diagnostic measurement. An ionization chamber used for the reproducibility of air-kerma in high fluence rate X-rays was designed, and the monoenergetic X-rays of (6-20) keV were absolutely measured on Beijing Synchrotron Radiation Facility. The air attenuation and recombination correction factors of the free-air ionization chamber were obtained experimentally. Thus, the air-kerma for the $(6 sim 20)$ keV monoenergetic X-rays can be determined.","PeriodicalId":419168,"journal":{"name":"2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116719864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：