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heavy ion energy influence on multiple-cell upsets in small sensitive volumes:from standard to high energies

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Nuclear Science and Techniques 2024年第5期35卷 109-121页

作者： Yang Jiao li-hua Mo Jin-hu Yang Yu-Zhu liu Ya-Nan Yin liang Wang Qi-Yu Chen Xiao-Yu Yan Shi-Wei zhao Bo li You-Mei Sun pei-Xiong zhao jie liu Institute of Modern Physics Chinese Academy of ScienceLanzhou 730000China University of Chinese Academy of Science Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China China Electronics Technology Group Corporation No.58 Research Institute Wuxi 214000China Beijing Microelectronics Technology Institute Beijing 100084China Institute of Microelectronics Chinese Academy of SciencesBeijing 100029China Key Laboratory of Science and Technology on Silicon Devices Chinese Academy of SciencesBeijing 100029China

The 28 nm process has a high cost-performance ratio and has gradually become the standard for the field of radiation-hardened ***,owing to the minimum physical gate length of only 35 nm,the physical area of a standard 6T SRAM unit is approximately 0.16μm^(2),resulting in a significant enhancement of multi-cell charge-sharing ***-cell upsets(MCUs)have become the primary physical mechanism behind single-event upsets(SEUs)in advanced nanometer node *** range of ionization track effects increases with higher ion energies,and spacecraft in orbit primarily experience SEUs caused by high-energy ***,ground accelerator experiments have mainly obtained low-energy ion irradiation ***,the impact of ion energy on the SEU cross section,charge collection mechanisms,and MCU patterns and quantities in advanced nanometer devices remains *** this study,based on the experimental platform of the heavy Ion Research Facility in Lanzhou,low-and high-energy heavy-ion beams were used to study the SEUs of 28 nm SRAM *** influence of ion energy on the charge collection processes of small-sensitive-volume devices,MCU patterns,and upset cross sections was obtained,and the applicable range of the inverse cosine law was *** findings of this study are an important guide for the accurate evaluation of SEUs in advanced nanometer devices and for the development of radiation-hardening techniques.

关键词： 28 nm static random access memory(SRAM) Energy effects heavy ion Multiple-cell upset(MCU) Charge collection Inverse cosine law

Microstructure of asymmetric twin-roll cast AZ31 magnesium alloy

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Transactions of Nonferrous Metals Society of China 2011年第11期21卷 2372-2377页

作者：赵虎何良菊李培杰清华大学新材料国际研发中心北京100084 清华大学机械工程系北京100084

The microstructural distribution along thickness of asymmetric twin-roll cast AZ31 magnesium alloy slab was investigated. It was found that the microstructure along the thickness of the slab was significantly inhomogeneous. There were many deformed bands with flow form near the upper surface of twin-roll cast plate. Very few deformed bands could be seen in the central part of the plate where the dendrites were thick. Fine dendritic structures dominated near the lower surface of the twin-roll cast strip. It is concluded that the shear strain caused by linear velocity difference between surfaces of upper and lower rolls results in the deformed bands of the twin-roll cast slab. Aluminum, zinc and manganese segregate to the boundary of dendrites, while silicon distributes inside the α-Mg solid solution.

关键词： AZ31 magnesium alloy asymmetric twin-roll casting deformation bands precipitate

AZ31镁合金铸轧和常规轧制板的变形组织及形变特征

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中国有色金属学报 2009年第11期19卷 1887-1893页

作者：赵虎李培杰何良菊清华大学新材料国际研发中心北京100084

在变形温度为150～400℃、应变速率为0.3～0.0003s-1条件下,在Gleeble1500热模拟机上采用等温拉伸试验对AZ31镁合金铸轧和常规轧制板的高温塑性及组织演变进行研究。结果表明:两种AZ31镁合金板的峰值应力和峰值应变均随着变形温度的降... 详细信息

在变形温度为150～400℃、应变速率为0.3～0.0003s-1条件下,在Gleeble1500热模拟机上采用等温拉伸试验对AZ31镁合金铸轧和常规轧制板的高温塑性及组织演变进行研究。结果表明:两种AZ31镁合金板的峰值应力和峰值应变均随着变形温度的降低和应变速率的增加而逐渐增大。铸轧板的应变硬化指数和应变速率敏感系数均大于常规轧制板的。在高温低应变速率变形条件下,铸轧板的晶界滑移引起的空洞尺寸、体积分数和密度均大于常规轧制板的。低应变速率下拉伸变形后的动态再结晶晶粒尺寸随温度的升高逐渐增加;不同变形条件下铸轧板的晶粒尺寸均小于常规轧制板的;再结晶晶粒尺寸和Z参数呈幂律关系。

关键词： AZ31镁合金铸轧高温塑性

Broadband diffusion of terahertz waves by multi-bit coding metasurfaces

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light(Science & Applications) 2015年第1期4卷 207-215页

作者： li-hua Gao Qiang Cheng Jing Yang Shao-jie Ma jie zhao Shuo liu Hai-Bing Chen Qiong he Wei-Xiang Jiang hui-Feng Ma Qi-Ye Wen Lan-ju liang Biao-Bing Jin Wei-Wei liu Lei Zhou Jian-Quan Yao pei-heng Wu Tie-jun Cui State Key Laboratory of Millimeter Waves Department of Radio EngineeringSoutheast UniversityNanjing 210096China Cooperative Innovation Centre of Terahertz Science No.4Section 2North Jianshe RoadChengdu 610054China Institute of Modern Optics Key Laboratory of Optical Information Science and Technology(Ministry of Education)Nankai UniversityTianjin 300071China State Key Laboratory of Surface Physics Key Laboratory of Micro and Nano Photonic Structures(Ministry of Education)Department of PhysicsFudan UniversityShanghai 200433China State Key Laboratory of Electronic Films and Integrated Devices University of Electronic Science and TechnologyChengdu 610054China Research Institute of Superconductor Electronics(RISE) School of Electronic Science and EngineeringNanjing UniversityNanjing 210093China Institute of Lasers and Optoelectronics College of Precision Instrument and Opto-Electronics EngineeringTianjin UniversityTianjin 300072China

The terahertz region is a special region of the electromagnetic spectrum that incorporates the advantages of both microwaves and infrared light *** the past decade,metamaterials with effective medium parameters or gradient phases have been studied to control terahertz waves and realize functional ***,we present a new approach to manipulate terahertz waves by using coding metasurfaces that are composed of digital coding *** propose a general coding unit based on a Minkowski closed-loop particle that is capable of generating 1-bit coding(with two phase states of 0 and 180°),2-bit coding(with four phase states of 0,90°,180°,and 270°),and multi-bit coding elements in the terahertz frequencies by using different geometric *** show that multi-bit coding metasurfaces have strong abilities to control terahertz waves by designing-specific coding *** an application,we demonstrate a new scattering strategy of terahertz waves—broadband and wide-angle diffusion—using a 2-bit coding metasurface with a special coding design and verify it by both numerical simulations and *** presented method opens a new route to reducing the scattering of terahertz waves.

关键词： coding diffusion metasurface terahertz waves

Large area^(3)he tube array detector with modular design for multi‑physics instrument at CSNS

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Nuclear Science and Techniques 2023年第1期34卷 1-12页

作者： lin Zhu Jian‑Rong Zhou Yuan‑Guang Xia liang Xiao Hong Luo Xiao‑juan Zhou Wen‑Qin Yang Bei‑ju Guan Xing‑Fen Jiang Yan‑Feng Wang Hong Xu Hai‑Yun Teng li‑Xin Zeng Jia‑jie li Lei hu Ke Zhou Yong‑Xiang Qiu pei‑Xun Shen jun Xu li‑Jiang liao Xiao‑Zhuang Wang Gui‑An Yang huai‑Chan Chen ju‑Ping Xu Zhi‑Duo li Song‑lin Wang Jian Zhuang Yu‑Bin zhao jun‑Rong Zhang Wen Yin Zhi‑Jia Sun Yuan‑Bo Chen Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Spallation Neutron Source Science Center Dongguan 523803China University of Chinese Academy of Sciences Beijing 100049China

The multi-physics instrument(MPI)is the first user cooperative instrument at the China Spallation Neutron Source(CSNS).It was designed to explore the structures of complex materials at multiple scales based on the neutron total scattering *** imposes the requirements for the detector,including a high detection efficiency to reduce the measurement time and a large solid angle coverage to cover a wide range of momentum *** satisfy these demands,a large-area array of 3he-filled linear position-sensitive detectors(LPSDs)was constructed,each with a diameter of 1 inch and pressure of 20 *** uses an orbicular layout of the detector and an eight-pack module design for the arrangement of 3he LPSDs,covering a range of scattering angles from 3°to 170°with a total detector area of approximately 7 *** detector works in air,which is separated from the vacuum environment to facilitate installation and *** characteristics of the MPI detector were investigated through Monte Carlo(MC)simulations using Geant4 and experimental *** results suggest that the detectors are highly efficient in the wavelength range of the MPI,and an efficiency over 25%is achievable for above 0.1 A neutrons.A minimal position resolution of 6.4 mm full width at half maximum(FWHM)along the tube length was achieved at a working voltage of 2200 V,and a deviation below 2 mm between the real and measured positions was attained in the beam *** detector module exhibited good consistency and an excellent counting rate capacity of up to 80 kHz,which satisfied the requirements of experiments with a high event *** of its operation over the past year have shown that the detector works steadily in sample experiments,which allows the MPI to serve the user program successfully.

关键词： Neutron detector LPSD Position resolution Counting rate capacity

Solar X-ray and EUV imager on board the FY-3E satellite

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light(Science & Applications) 2022年第12期11卷 2939-2951页

作者： Bo Chen Xiao-Xin Zhang ling-Ping he Ke-Fei Song Shi-jie liu Guang-Xing Ding Jin-Ping Dun Jia-Wei li zhao-hui li Quan-Feng Guo Hai-Feng Wang Xiao-Dong Wang Yun-Qi Wang Hong-Ji Zhang Guang Zhang Zhen-Wei Han Shuang Dai pei-jie Zhang liang Sun Yang liu software engineer Peng Wang Kun Wu Chen Tao Shi-Lei Mao Gui Mei liang Yang li-heng Chen Chun-Yang Han Bin huang Yang liu mechanical engineer Shuai Ren Peng Zhou Ze-XiWei Xiao-Xue Zhang Yue Zhang Xin Zheng Yang Wang Ya Chen Jing-Jiang Xie Fei he Qiao Song Wei-Guo Zong Xiu-Qing hu Peng Zhang Jing-Song Wang Zhong-Dong Yang Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of SciencesChangchunChina State Key Laboratory of Applied Optics Chinese Academy of SciencesChangchunChina National Satellite Meteorological Center China Meteorological AdministrationBeijingChina Key Laboratory of Space Weather National Center for Space WeatherChina Meteorological AdministrationBeijingChina Innovation Center for Fengyun Meteorological Satellite(FYSIC) BeijingChina Key Laboratory of Earth and Planetary Physics Institute of Geology and GeophysicsChinese Academy of SciencesBeijingChina

The solar X-ray and Extreme Ultraviolet Imager(X-EUVI),developed by the Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences(CIOMP),is the first space-based solar X-ray and Extreme ultraviolet(EUV)imager of China loaded on the Fengyun-3E(FY-3E)satellite supported by the China Meteorological Administration(CMA)for solar *** started work on july 11,2021,X-EUVI has obtained many solar *** instrument employs an innovative dual-band design to monitor a much larger temperature range on the Sun,which covers 0.6-8.0 nm in the X-ray region with six channels and 19.5 nm in the EUV region.X-EUVI has a field of view of 42′,an angular resolution of 2.5″per pixel in the EUV band and an angular resolution of 4.1″per pixel in the X-ray *** instrument also includes an X-ray and EUV irradiance sensor(X-EUVS)with the same bands as its imaging optics,which measures the solar irradiance and regularly calibrates the solar *** radiometric calibration of X-EUVS on the ground has been completed,with a calibration accuracy of 12%.X-EUVI is loaded on the FY-3E satellite and rotates relative to the Sun at a uniform ***-field calibration is conducted by utilizing successive rotation solar *** agreement between preliminarily processed X-EUVI images and SDO/AIA and Hinode/XRT images indicates that X-EUVI and the data processing algorithm operate properly and that the data from X-EUVI can be applied to the space weather forecast system of CMA and scientific investigations on solar activity.

关键词： image instrument Solar

Advances in nuclear detection and readout techniques

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Nuclear Science and Techniques 2023年第12期34卷 281-358页

作者： Rui he Xiao‑Yang Niu Yi Wang Hong‑Wei liang Hong‑Bang liu Ye Tian Hong‑lin Zhang Chao‑jie Zou Zhi‑Yi liu Yun‑Long Zhang Hai‑Bo Yang ju huang Hong‑Kai Wang Wei‑Jia Han Bei Cao Gang Chen Cong Dai li‑Min Duan Rui‑Rui Fan Fang‑Fa Fu Jian‑hua Guo Dong Han Wei Jiang Xian‑Qin li Xin li Zhuo‑Dai li Yu‑Tie liang Shun liao De‑Xu lin Cheng‑Ming liu Guo‑Rui liu jun‑Tao liu Ze Long Meng‑Chen Niu Hao Qiu hu Ran Xiang‑Ming Sun Bo‑Tan Wang Jia Wang Jin‑Xiang Wang Qi‑lin Wang Yong‑Sheng Wang Xiao‑Chuan Xia Hao‑Qing Xie he‑Run Yang Hong Yin Hong Yuan Chun‑hui Zhang Rui‑Guang zhao Ran Zheng Cheng‑Xin zhao Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Advanced Energy Science and Technology Guangdong Laboratory Huizhou 516000China Key Laboratory of Particle and Radiation Imaging Department of Engineering PhysicsTsinghua UniversityBeijing 100084China School of Integrated Circuits Dalian University of TechnologyDalian 116020China Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and TechnologyGuangxi UniversityNanning 530004China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Radiation Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Electronic Engineering School Heilongjiang UniversityHarbin 150080China Spallation Neutron Source Science Center Dongguan 523803China Micro‑electronic Department Harbin Institute of TechnologyHarbin 150001China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210034China liaoning Academy of Materials Shenyang 110167China Istituto Nazionale di Fisica Nucleare Sezione di PerugiaPerugiaItaly School of Mathematics and Physics Chengdu University of TechnologyChengdu 620035China PLAC Key Laboratory of Quark and Lepton Physics(MOE)Central China Normal UniversityWuhan 430079China School of Electronics and Information Northwestern Polytechnical UniversityXi’an 710129China State Key Lab of Superhard Materials College of PhysicsJilin UniversityChangchun 130012China School of Computer Science Northwestern Polytechnical UniversityXi’an 710129China

“A Craftsman Must Sharpen His Tools to Do His Job,”said *** detection and readout techniques are the foundation of particle physics,nuclear physics,and particle astrophysics to reveal the nature of the ***,they are being increasingly used in other disciplines like nuclear power generation,life sciences,environmental sciences,medical sciences,*** article reviews the short history,recent development,and trend of nuclear detection and readout techniques,covering Semiconductor Detector,Gaseous Detector,Scintillation Detector,Cherenkov Detector,Transition Radiation Detector,and Readout *** explaining the principle and using examples,we hope to help the interested reader underst and this research field and bring exciting information to the community.

关键词： Silicon detector Wide bandgap detector Time projection chamber(TPC) Multigap resistive plate chamber detector(MRPC) Scintillation detector Calorimeters Cherenkov detector Transition radiation detector Artificial intelligence Trigger-less readout

Site testing campaign for the Large Optical/infrared Telescope of China:overview

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Research in Astronomy and Astrophysics 2020年第6期20卷 81-95页

作者： Lu Feng Jin-Xin Hao Zi-huang Cao Jin-Min Bai Ji Yang Xu Zhou Yong-Qiang Yao Jin-liang Hou Yong-heng zhao Yu liu Teng-Fei Song li-Yong liu Jia Yin hua-lin Chen Chong pei Ali Esamdin Lu Ma Chun-Hai Bai Peng Wei Jing Xu Guang-Xin Pu Guo-jie Feng Xuan Zhang liang Ming Abudusaimaitijiang Yisikandee Jian-Rong Shi Jian li Yuan Tian Zheng Wang Xia Wang Xiao-jun Jiang Jian-Feng Wang Jian-Feng Tian Yan-jie Xue Jian-Sheng Chen Jing-Yao hu Zhi-Xia Shen Yun-Ying Jiang National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Yunnan Observatories Chinese Academy of SciencesKunming 650216China Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China Nanjing Institute of Astronomical Optics&Technology Chinese Academy of SciencesNanjing 210042China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210033China University of Chinese Academy of Sciences Beijing 100049China

The Large Optical/infrared Telescope(LOT)is a ground-based 12 m diameter optical/infrared telescope which is proposed to be built in the western part of China in the next *** on satellite remote sensing data,along with geographical,logistical and political considerations,three candidate sites were chosen for ground-based astronomical performance *** sites include:Ali in Tibet,Daocheng in Sichuan and Muztagh-ata in *** until now,all three sites have continuously collected data for two *** this paper,we will introduce this site testing campaign,and present its monitoring results obtained during the period between March 2017 and March 2019.

关键词： techniques telescope-site testing

The landscape of aging

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Science China(life Sciences) 2022年第12期65卷 2354-2454页

作者： Yusheng Cai Wei Song Jiaming li Ying Jing Chuqian liang liyuan Zhang Xia Zhang Wenhui Zhang Beibei liu Yongpan An Jingyi li Baixue Tang Siyu pei Xueying Wu Yuxuan liu Cheng-Le Zhuang Yilin Ying Xuefeng Dou Yu Chen Fu-hui Xiao Dingfeng li Ruici Yang Ya zhao Yang Wang lihui Wang Yujing li Shuai Ma Si Wang Xiaoyuan Song jie Ren liang Zhang jun Wang Weiqi Zhang Zhengwei Xie Jing Qu Jianwei Wang Yichuan Xiao Ye Tian Gelin Wang Ping hu Jing Ye Yu Sun Zhiyong Mao Qing-Peng Kong Qiang liu Weiguo Zou Xiao-li Tian Zhi-Xiong Xiao Yong liu jun-Ping liu Moshi Song Jing-Dong J.Han Guang-hui liu State Key Laboratory of Membrane Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China Institute for Stem Cell and Regeneration Chinese Academy of SciencesBeijing 100101China Beijing Institute for Stem Cell and Regenerative Medicine Beijing 100101China Frontier Science Center for Immunology and Metabolism Medical Research InstituteCollege of Life SciencesWuhan UniversityWuhan 430071China CAS Key Laboratory of Genomic and Precision Medicine Beijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China CAS Key Laboratory of Tissue Microenvironment and Tumor Shanghai Institute of Nutrition and HealthChinese Academy of SciencesShanghai 200031China CAS Key Laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China Peking University International Cancer Institute Peking University Health Science CenterPeking UniversityBeijing 100191China School of Pharmaceutical Sciences Tsinghua UniversityBeijing 100084China State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China School of Pharmaceutical Sciences Beijing Advanced Innovation Center for Structural BiologyMinistry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical BiologyTsinghua UniversityBeijing 100084China Colorectal Cancer Center/Department of Gastrointestinal Surgery Shanghai Tenth People’s Hospital Affiliated to Tongji UniversityShanghai 200072China Department of Geriatrics Medical Center on Aging of Shanghai Ruijin HospitalShanghai Jiaotong University School of MedicineShanghai 200025China International Laboratory in hematology and Cancer Shanghai Jiaotong University School of Med

Aging is characterized by a progressive deterioration of physiological integrity,leading to impaired functional ability and ultimately increased susceptibility to *** is a major risk factor for chronic human diseases,including cardiovascular disease,diabetes,neurological degeneration,and ***,the growing emphasis on “healthy aging” raises a series of important questions in life and social *** recent years,there has been unprecedented progress in aging research,particularly the discovery that the rate of aging is at least partly controlled by evolutionarily conserved genetic pathways and biological *** an attempt to bring full-fledged understanding to both the aging process and age-associated diseases,we review the descriptive,conceptual,and interventive aspects of the landscape of aging composed of a number of layers at the cellular,tissue,organ,organ system,and organismal levels.

关键词： aging mechanism intervention