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CSHINE for studies of HBT correlation in heavy ion reactions

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Nuclear Science and Techniques 2021年第1期32卷 27-34页

作者： Yi-Jie Wang Fen-Hai Guan Xin-Yue Diao Qiang-Hua Wu Xiang-Lun Wei He-Run Yang Peng Ma Zhi Qin Yu-Hao Qin Dong Guo Rong-Jiang Hu li-min duan Zhi-Gang Xiao Department of Physics Tsinghua UniversityBeijing 100084China Institute of Modern Physics Lanzhou 730000China

The compact spectrometer for heavy ion experiment(CSHINE)is under construction for the study of isospin chronology via the Hanbury Brown–Twiss(HBT)particle correlation function and the nuclear equation of state of asymmetrical nuclear *** CSHINE consists of silicon strip detector(SSD)telescopes and large-area parallel-plate avalanche counters,which measure the light charged particles and fission fragments,*** phase I,two SSD telescopes were used to observe 30 MeV/u 40Ar?197Au *** results presented here demonstrate that hydrogen and helium were observed with high isotopic resolution,and the HBT correlation functions of light charged particles could be constructed from the obtained data.

关键词： Silicon strip detector Telescope HBT correlation function Nuclear equation of state

A tracking system for the external target facility of CSR

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Nuclear Science and Techniques 2017年第5期28卷 68-73页

作者： Shu-Wen Tang Shi-Tao Wang li-min duan Zhi-Yu Sun Yu-Hong Yu Xue-Heng Zhang Ke Yue Chen-Gui Lu He-Run Yang Peng Ma Fang Fang Duo Yan Yu Sun Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000 China University of Chinese Academy of Sciences Beijing 100049China

A tracking system composed of three multiwires proportional chambers(MWPCs) for the external target facility of the Cooler Storage Ring is reported in this paper. The active areas of the MWPCs are 518 mm 9400 mm, 582 mm 9 450 mm, and 710 mm 9 500 mm Each MWPC consists of a series of alternately placed cathode and anode wire planes and can measure position along the directions of-30°, 0°, and 30° relative to horizontal. The construction and operation of the detectors are described, and a method for track reconstruction is introduced. A track-finding efficiency of about 62% and a spatial resolution of 1.21 mm have been achieved. The pion and proton can be identified clearly with the tracking system combined with a time-of-flight system.

关键词： ETF MWPC Track reconstruction Spatial resolution

An FPGA‑based trigger system for CSHINE

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Nuclear Science and Techniques 2022年第12期33卷 138-146页

作者： Dong Guo Yu‑Hao Qin Sheng Xiao Zhi Qin Yi‑Jie Wang Fen‑Hai Guan Xin‑Yue Diao Bo‑Yuan Zhang Yao‑Peng Zhang Da‑Wei Si Shi‑Wei Xu Xiang‑Lun Wei He‑Run Yang Peng Ma Tian‑li Qiu Hai‑Chuan Zou li‑min duan Zhi‑Gang Xiao Department of Physics Tsinghua UniversityBeijing 100084China Institute of Modern Physics Chinese Academy of ScienceLanzhou 730000China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China

A trigger system of the general function was designed using the commercial module of CAEN V2495 for heavy-ion nuclear reaction experiments at Fermi *** system was applied and verified on the compact spectrometer for heavy IoN experiment(CSHINE).Based on the field-programmable logic gate array technology of the command register access and remote computer control operation,trigger functions can be flexibly configured according to experimental physical *** the trigger system on CSHINE,we conducted a beam experiment at 25 MeV/u^(86)Kr+^(124)Sn on the Radioactive Ion Beam line 1 in Lanzhou,*** online results demonstrated that the trigger system worked normally and *** system can be extended to other experiments as well.

关键词： CSHINE Trigger system FPGA Heavy ion experiment

Reconstruction of fission events in heavy ion reactions with the compact spectrometer for heavy ion experiment

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Nuclear Science and Techniques 2022年第4期33卷 1-9页

作者： Xin-Yue Diao Fen-Hai Guan Yi-Jie Wang Yu-Hao Qin Zhi Qin Dong Guo Qiang-Hua Wu Da-Wei Si Xuan Zhao Sheng Xiao Yao-Peng Zhang Xiang-Lun Wei Hai-Chuan Zou He-Run Yang Peng Ma Rong-Jiang Hu li-min duan Artur Dobrowolski Krzysztof Pomorski Zhi-Gang Xiao Department of Physics Tsinghua UniversityBeijing 100084China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China Institute of Physics Maria Curie Skłodowska UniversityLublin 20031Poland

We report a reconstruction method for fast-fission events in 25 MeV/u^(86)Kr +^(208)Pb reactions at the Compact Spectrometer for Heavy Ion Experiment(CSHINE). The fission fragments(FFs) are measured using three large-area parallel-plate avalanche counters, which can deliver the position and arrival timing information of the fragments. The start timing information is provided by the radio frequency of the cyclotron. Fission events were reconstructed using the velocities of the two FFs. The broadening of both the velocity distribution and azimuthal difference of the FFs decreases with the folding angle, in accordance with the picture that fast fission occurs. The anisotropic angular distribution of the fission axis also consistently reveals the dynamic features of fission events.

关键词： Fast fission Heavy ion reactions Parallelplate avalanche counter CSHINE

Development of a MWDC prototype of the CSR external-target experiment

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Nuclear Science and Techniques 2024年第10期35卷 121-134页

作者： Zhou-Bo He Zhi Qin Peng Ma He-Run Yang Xiang-Lun Wei Chen-Gui Lu Xiang-Jie Wen Xiu-ling Zhang Tao Chen Zhi-Jie li Yuan-Sheng Yang Mei-Qiang Zhan Can-Wen liu Meng li Tian-li Qiu Yi-Wei Gong Xin-Jie Huang Xiao-Hao Yin Zhi-Xuan He Jun-Wei Zhang Hai-Chuan Zou Sheng-Wei Fu Dong Guo Jun-Wei Yan Zhe Cao Zhi Deng Jie Kong Zhi-Gang Xiao Rong-Jiang Hu li-min duan Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Department of Physics Tsinghua UniversityBeijing 100084China University of Science and Technology of China Hefei 230026China Key Laboratory of Radiation Physics and Technology of the ministry of Education Institute of Nuclear Science and TechnologySichuan UniversityChengdu 610064China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China North China University of Water Resources and Electric Power Zhengzhou 450000China

The cooling storage ring(CSR)external-target experiment(CEE)is a spectrometer used in construction to study the properties of nuclear matter in high-baryon density regions at the Heavy-Ion Research Facility in Lanzhou(HIRFL).This study presents the design,simulation,manufacturing,and testing of a half-size prototype of a multi-wire drift chamber(MWDC)for the ***,the performance of the MWDC connected to homemade electronics was *** results demonstrated that an energy resolution of 18.5% for 5.9-keV X-rays and a position resolution of 194μm for protons can be achieved by the current *** the size of the largest MWDC reached 176 cm×314 cm,a set of 98 cm×98 cm prototypes was built using the new *** positioning accuracy of the anode wires in this prototype is better than 20μ*** optimization,using commercially available electronics,the prototype can achieved an energy resolution of 19.7%for a^(55)Fe X-ray *** CEE-MWDC detector and electronics were simultaneously *** energy resolution of 22%was achieved for the^(55)Fe source;the track residuals were approximately 330μm for the cosmic *** results demonstrate that the current design and techniques meet the requirements of the CEE-MWDC array.

关键词： CEE MWDC Garfield++ ^(55)Fe source Position resolution

Towards the full realization of the RIBLL2 beam line at the HIRFL-CSR complex

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Science Bulletin 2018年第2期63卷 78-80页

作者： Bao-Hua Sun Jian-Wei Zhao Xue-Heng Zhang li-Na Sheng Zhi-Yu Sun Isao Tanihata Satoru Terashima Yong Zheng li-Hua Zhu li-min duan liu-Chun He Rong-Jiang Hu Guang-Shuai li Wen-Jian lin Wei-Ping lin Chuan-Ye liu Zhong liu Chen-Gui Lu Xin-Wen Ma li-Jun Mao Yi Tian Feng Wang Meng Wang Shi-Tao Wang Jia-Wen Xia Xiao-Dong Xu Hu-Shan Xu Zhi-Guo Xu Jian-Cheng Yang Da-Yu Yin You-Jin Yuan Wen-Long Zhan Yu-Hu Zhang Xiao-Hong Zhou School of Physics and Nuclear Energy Engineering Beihang University Beijing 100191 China International Research Center for Nuclei and Particles in the Cosmos Beijing 100191 China Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 China

More than 99%of the mass in the visible universe—the material that makes up ourselves,our planet,stars—is in the atomic *** the matter has existed for billions of years,only over the past few decades have we had the tools and the knowledge necessary to get a basic understanding of the structure and dynamic of *** physicists around the world have made tremendous strides by initiating a broad range of key

关键词： HIRFL-CSR 横梁建筑群排队原子核物理学家试验性世界

Activation of adult endogenous neurogenesis by a hyaluronic acid collagen gel containing basic fibroblast growth factor promotes remodeling and functional recovery of the injured cerebral cortex

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Neural Regeneration Research 2025年第10期20卷 2923-2937页

作者： Yan li Peng Hao Hongmei duan Fei Hao Wen Zhao Yudan Gao Zhaoyang Yang Kwok-Fai So Xiaoguang li Department of Neurobiology School of Basic Medical SciencesCapital Medical UniversityBeijingChina China Rehabilitation Science Institute China Rehabilitation Research CenterBeijing Key Laboratory of Neural Injury and RehabilitationBeijingChina Center of Neural Injury and Repair Beijing Institute for Brain DisordersBeijingChina Beijing Key Laboratory for Biomaterials and Neural Regeneration School of Engineering MedicineBeihang UniversityBeijingChina Guangdong-HongKong-Macao Institute of CNS Regeneration Ministry of Education CNS Regeneration Collaborative Joint LaboratoryJinan UniversityGuangzhouGuangdong ProvinceChina Bioland Laboratory(Guangzhou Regenerative Medicine and Health Guangdong Laboratory) GuangzhouGuangdong ProvinceChina Department of Ophthalmology and State Key Laboratory of Brain and Cognitive Sciences The University of Hong KongHong Kong Special Administration RegionChina Center for Brain Science and Brain-Inspired Intelligence Guangdong-HongKong-Macao Greater Bay AreaGuangzhouGuangdong ProvinceChina Co-innovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina Department of Biomedical Engineering School of Biological Science and Medical EngineeringBeihang UniversityBeijingChina

The presence of endogenous neural stem/progenitor cells in the adult mammalian brain suggests that the central nervous system can be repaired and regenerated after ***,whether it is possible to stimulate neurogenesis and reconstruct cortical layers II to VI in non-neurogenic regions,such as the cortex,remains *** this study,we implanted a hyaluronic acid collagen gel loaded with basic fibroblast growth factor into the motor cortex immediately following traumatic *** findings reveal that this gel effectively stimulated the proliferation and migration of endogenous neural stem/progenitor cells,as well as their differentiation into mature and functionally integrated ***,these new neurons reconstructed the architecture of cortical layers II to VI,integrated into the existing neural circuitry,and ultimately led to improved brain *** findings offer novel insight into potential clinical treatments for traumatic cerebral cortex injuries.

关键词： adult endogenous neurogenesis basic fibroblast growth factor-hyaluronic acid collagen gel cortical remodeling functional recovery migration motor cortex injury neural circuits neural stem cells newborn neurons proliferation

Porous Organic Cage‑Based Quasi‑Solid‑State Electrolyte with Cavity‑Induced Anion‑Trapping Effect for Long‑life lithium Metal Batteries

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Nano-Micro Letters 2025年第2期17卷 376-386页

作者： Wei-min Qin Zhongliang li Wen‑Xia Su Jia‑min Hu Hanqin Zou Zhixuan Wu Zhiqin Ruan Yue‑Peng Cai Kang li Qifeng Zheng School of Chemistry South China Normal UniversityGuangzhou 510006People’s Republic of China Key Laboratory of Functional Metal‑Organic Compounds of Hunan Province College of Chemistry and Material ScienceHengyang Normal UniversityHengyang 421008People’s Republic of China Guangzhou Key Laboratory of Energy Conversion and Energy Storage Materials Guangzhou 510006People’s Republic of China

Porous organic cages(POCs)with permanent porosity and excellent host–guest property hold great potentials in regulating ion transport behavior,yet their feasibility as solid-state electrolytes has never been testified in a practical ***,we design and fabricate a quasi-solid-state electrolyte(QSSE)based on a POC to enable the stable operation of li-metal batteries(LMBs).Benefiting from the ordered channels and cavity-induced anion-trapping effect of POC,the resulting POC-based QSSE exhibits a high li+transference number of 0.67 and a high ionic conductivity of 1.25×10^(−4) S cm^(−1) with a low activation energy of 0.17 *** allow for homogeneous li deposition and highly reversible li plating/stripping for over 2000 *** a proof of concept,the LMB assembled with POC-based QSSE demonstrates extremely stable cycling performance with 85%capacity retention after 1000 ***,our work demonstrates the practical applicability of POC as SSEs for LMBs and could be extended to other energy-storage systems,such as Na and K batteries.

关键词： Porous organic cage Cavity-induced anion-trapping Quasi-solid-state electrolyte Homogeneous li+flux lithium metal battery

Peripheral mitochondrial DNA as a neuroinflammatory biomarker for major depressive disorder

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Neural Regeneration Research 2025年第6期20卷 1541-1554页

作者： Jinmei Ye Cong duan Jiaxin Han Jinrong Chen Ning Sun Yuan li Tifei Yuan Daihui Peng Division of Mood Disorder Shanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Department of Psychiatry First Hospital of Shanxi Medical UniversityTaiyuanShanxi ProvinceChina Shanghai Key Laboratory of Psychotic Disorders Brain Health InstituteNational Center for Mental DisordersShanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Co-Innovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina

In the pathogenesis of major depressive disorder, chronic stress-related neuroinflammation hinders favorable prognosis and antidepressant response. Mitochondrial DNA may be an inflammatory trigger, after its release from stress-induced dysfunctional central nervous system mitochondria into peripheral circulation. This evidence supports the potential use of peripheral mitochondrial DNA as a neuroinflammatory biomarker for the diagnosis and treatment of major depressive disorder. Herein, we critically review the neuroinflammation theory in major depressive disorder, providing compelling evidence that mitochondrial DNA release acts as a critical biological substrate, and that it constitutes the neuroinflammatory disease pathway. After its release, mitochondrial DNA can be carried in the exosomes and transported to extracellular spaces in the central nervous system and peripheral circulation. Detectable exosomes render encaged mitochondrial DNA relatively stable. This mitochondrial DNA in peripheral circulation can thus be directly detected in clinical practice. These characteristics illustrate the potential for mitochondrial DNA to serve as an innovative clinical biomarker and molecular treatment target for major depressive disorder. This review also highlights the future potential value of clinical applications combining mitochondrial DNA with a panel of other biomarkers, to improve diagnostic precision in major depressive disorder.

关键词： biomarker cytokine exosomes inflammasome major depressive disorder microglia mitochondrial DNA mitochondrial dysfunction neuroinflammation Toll-like receptor