Article
Computer Science, Software Engineering
Yang Liu
Summary: A new MATLAB program, rw1_read, is developed to identify and correct frequently occurring formatting errors in tree-ring raw measurement files. This program helps to improve the efficiency and accuracy of big data batch processing in tree-ring research.
Article
Instruments & Instrumentation
Bo Gao, Fangzhou Chen, Yimei Zhou, Yongbin Leng
Summary: A bunch-by-bunch beam lifetime measurement system has been developed, aimed at providing accurate representation of the behavior of all electron bunches in a storage ring. Effective techniques have been introduced to improve the resolution and data refresh rate of single bunch charge measurement, along with a dedicated algorithm for extracting single bunch lifetime.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2021)
Article
Nuclear Science & Technology
Xin-Zhong Liu, Shun-Qiang Tian, Xu Wu, Meng Wang, Zhen-Tang Zhao
Summary: New-generation synchrotron light sources aim to provide brighter radiation by reducing beam emittance, but intra-beam scattering and Touschek scattering are significant challenges. The study on the Shanghai Synchrotron Radiation Facility Upgrade focused on determining optimal machine configurations and parameters for achieving acceptable beam lifetime.
NUCLEAR SCIENCE AND TECHNIQUES
(2021)
Article
Optics
Enlong Wang, Gunjan Verma, Jonathan N. Tinsley, Nicola Poli, Leonardo Salvi
Summary: The method demonstrates reduced phase noise in light phase shift measurement using a high-finesse optical ring cavity. The differential error signal shows a 30 dB reduction in cavity noise down to the noise floor.
Article
Optics
E. K. Anderson, A. F. Schmidt-May, P. K. Najeeb, G. Eklund, K. C. Chartkunchand, S. Rosen, M. Kaminska, M. H. Stockett, R. Nascimento, K. Hansen, A. Larson, H. Cederquist, H. Zettergren, H. T. Schmidt
Summary: This study measured the spontaneous decays of internally hot copper and silver dimer anions. It found that after a certain storage time, electron emission replaces fragmentation as the dominant decay path, and the branching ratios between the two processes are similar.
Article
Instruments & Instrumentation
Ruizhe Wu, Yunkun Zhao, SanShuang Jin, Leilei Tang, Ping Lu, Baogen Sun
Summary: This article introduces a data synchronization module (DSM) designed to solve the issue of data misplacement on high-speed acquisition boards. It also proposes a method to improve the longitudinal phase resolution in multi-dimensional bunch-by-bunch (BbB) measurements.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2022)
Article
Engineering, Electrical & Electronic
L. Lombardi, V Annovazzi-Lodi, G. Aromataris, A. Scire
Summary: We numerically study the behavior of a semiconductor ring laser subject to bidirectional delayed optical feedback in the quasi-unidirectional regime. The optical feedback, provided by two external reflectors, can modify the laser regime produced by the cross-saturation between the clockwise and the counter-clockwise mode. The system exhibits new regimes, most of which are asymmetric and bidirectional, with alternating dominant mode. Two of these regimes are of special interest for applications as the laser switching period is linearly related to the time of flight. The laser can be used as a telemeter with a convenient electrical output signal obtained by a photodiode or by measuring the voltage drop across the laser junction. Simulations are performed based on rate-equations using typical literature parameters for a 1 mW ring laser.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Instruments & Instrumentation
Jinkai Lan, Tianyu Zhou, Baogen Sun, Chuhan Wang, Yongliang Yang
Summary: In this paper, we present a high-sensitivity tune measurement system based on diode detection for an electron storage ring, and carry out experiments without beam excitation on the HLS-II storage ring. The system consists of an analog front-end, spectrum analyzer, and host computer, and shows good signal-to-noise ratio without beam excitation.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2022)
Article
Endocrinology & Metabolism
Giuseppe Della Pepa, Valentina Brancato, Giuseppina Costabile, Dominic Salamone, Alessandra Corrado, Marilena Vitale, Carlo Cavaliere, Marcello Mancini, Marco Salvatore, Delia Luongo, Gabriele Riccardi, Angela A. Rivellese, Giovanni Annuzzi, Lutgarda Bozzetto
Summary: An isocaloric multifactorial diet including beneficial dietary components can significantly reduce pancreatic fat and improve postprandial insulin response in patients with type 2 diabetes.
Article
Energy & Fuels
Andrew J. Hutchinson, Daniel T. Gladwin
Summary: Energy Storage System modelling is crucial for researching the deployment and optimization of energy storage in various applications. This paper introduces a Battery Energy Storage System model developed in MATLAB/Simulink, which is experimentally verified against an existing installation. The model achieves an average RMSE accuracy of 1.29% and 1.05% when compared with two different methods of state of charge measurement. The paper also discusses the methodology of fine tuning the model to reduce the average RMSE.
Article
Chemistry, Multidisciplinary
Pavol Koleda, Peter Koleda, Maria Hrckova, Martin Juda, Aron Hortobagyi
Summary: The paper aims to determine the particle size composition of wood particles obtained from CNC milling of chipboard using an experimental optical granulometric method. Chipboard, a composite material, is widely used in woodworking and furniture industries. The proposed optical method is compared to the sieving technique for measuring particle dimensions. The experimental method allows for detailed analysis of wood dust emission, including the size, shape, and color of individual particles.
APPLIED SCIENCES-BASEL
(2023)
Article
Optics
Ya J. Guan, Chathura P. Bandutunga, Jiahao Dong, Timothy T-Y Lam, Roland Fleddermann, Malcolm B. Gray, Jong H. Chow
Summary: This study presents a continuous-wave, cavity-enhanced optical absorption spectrometry method for detecting molecular gas, utilizing the two non-degenerate polarization modes of a birefringent cavity to achieve zero background readout of infra-cavity absorption. The experimental demonstration showed a shot noise equivalent absorption of 3 x 10(-13) cm(-1) Hz(-1/2) for measuring the R14e absorption line of CO2 at 1572.655 nm.
Article
Engineering, Electrical & Electronic
Wan Bo, Bin Liu, Juan Liu, Xing-Dao He, Jinhui Yuan, Qiang Wu
Summary: A fiber ring laser based on a side-polish fiber Mach-Zehnder interferometer is proposed for improving refractive index and torsion sensing. The experimental results show that the side-polished fiber MZI sensor has high sensitivity in measuring refractive index and torsion, achieving higher measurement resolution.
IEEE SENSORS JOURNAL
(2022)
Article
Physics, Multidisciplinary
Yong Yu, Peng-Fei Sun, Yu-Zhe Zhang, Bing Bai, Yu-Qiang Fang, Xi-Yu Luo, Zi-Ye An, Jun Li, Jun Zhang, Feihu Xu, Xiao-Hui Bao, Jian-Wei Pan
Summary: In this experiment, an atomic-ensemble quantum memory was verified using a measurement-device-independent scheme. A single photon was stored in one atomic ensemble and later retrieved for interference with a second photon for a joint Bell-state measurement. By evaluating correlations between random states and BSM results, the memory's ability to preserve entanglement was confirmed.
PHYSICAL REVIEW LETTERS
(2021)
Article
Mathematics, Applied
Amparo Gil, Diego Ruiz-Antolin, Javier Segura, Nico M. Temme
Summary: This paper presents an algorithm and MATLAB implementation for computing the Kummer function U(a, b, x) and its derivative. The algorithm is efficient and accurate. Numerical tests demonstrate that the MATLAB algorithm can compute the function with a relative accuracy of about 10^(-14) in the parameter region (a, b, x) ∈ (0, 500) × (0, 500) × (0, 1000) in double-precision floating point arithmetic.
NUMERICAL ALGORITHMS
(2023)
Article
Physics, Nuclear
Qing-Lei Zhang, Shun-Qiang Tian, Bo-Cheng Jiang, Jie-Ping Xu, Zhen-Tang Zhao
Article
Instruments & Instrumentation
B. C. Jiang, Z. T. Zhao, S. Q. Tian, M. Z. Zhang, Q. L. Zhang
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2016)
Article
Nuclear Science & Technology
Shun-Qiang Tian, Qing-Lei Zhang, Man-Zhou Zhang, Kim Wang, Bo-Cheng Jiang
NUCLEAR SCIENCE AND TECHNIQUES
(2017)
Article
Nuclear Science & Technology
Thanapong Phimsen, Bo-Cheng Jiang, Hong-Tao Hou, Shun-Qiang Tian, Man-Zhou Zhang, Qing-Lei Zhang, Zhen-Tang Zhao
NUCLEAR SCIENCE AND TECHNIQUES
(2017)
Article
Physics, Nuclear
Chao Feng, Haixiao Deng, Zhimin Dai, Bo Liu, Shunqiang Tian, Manzhou Zhang, Meng Zhang
PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
(2014)
Article
Physics, Nuclear
B. C. Jiang, G. X. Xia, M. Z. Zhang, S. Q. Tian, Z. T. Zhao
PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
(2014)
Article
Nuclear Science & Technology
Xin-Zhong Liu, Shun-Qiang Tian, Xu Wu, Meng Wang, Zhen-Tang Zhao
Summary: New-generation synchrotron light sources aim to provide brighter radiation by reducing beam emittance, but intra-beam scattering and Touschek scattering are significant challenges. The study on the Shanghai Synchrotron Radiation Facility Upgrade focused on determining optimal machine configurations and parameters for achieving acceptable beam lifetime.
NUCLEAR SCIENCE AND TECHNIQUES
(2021)
Article
Instruments & Instrumentation
Xu Wu, Shunqiang Tian, Xinzhong Liu, Wenzhi Zhang, Zhentang Zhao
Summary: The lattice upgrade of the Shanghai Synchrotron Radiation Facility (SSRF) involved replacing bending magnets, constructing two DMB systems, and installing a superconducting wiggler. The symmetry of the storage ring was destroyed, necessitating modifications to the global optics. The lattice design matched the new elements and achieved sufficient dynamic aperture and energy acceptance through elaborate design and optimization.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2022)
Article
Nuclear Science & Technology
Xin-Zhong Liu, Shun-Qiang Tian, Xu Wu, Meng Wang, Zhen-Tang Zhao, Bo-Yuan Feng
Summary: In this study, an ID orbit feedforward compensation system based on a response matrix using corrector coils was developed, and it was successfully applied to all commissioned IDs in the SSRF storage ring, achieving effective orbit distortion compensation. Optical and coupling feedforward systems were also developed, further optimizing the system performance through the installation of quadrupole and skew quadrupole magnets.
NUCLEAR SCIENCE AND TECHNIQUES
(2022)
Article
Instruments & Instrumentation
Liyuan Tan, Shunqiang Tian, Xinzhong Liu, Wenzhi Zhang, Xu Wu, Yihao Gong
Summary: This paper presents the impact of active insertion devices (ID) on the beam emittance and energy spread in future synchrotron light sources. The magnetic gap data of Shanghai Synchrotron Radiation Facility (SSRF) was used to evaluate the emittance variation in an 864mRing. A novel compensation method using two compensation wigglers was developed to improve both the beam emittance and energy spread stability, resulting in enhanced brightness stability during operation.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2023)
Article
Nuclear Science & Technology
Thanapong Phimsen, Bocheng Jiang, Hongtao Hou, Shunqiang Tian, Manzhou Zhang, Qinglei Zhang, Kun Wang, Zhentang Zhao
RADIATION DETECTION TECHNOLOGY AND METHODS
(2018)
Article
Nuclear Science & Technology
Jiang Bo-Cheng, Lin Guo-Qiang, Wang Bao-Liang, Zhang Man-Zhou, Yin Chong-Xian, Yan Ying-Bing, Tian Shun-Qiang, Wang Kun
NUCLEAR SCIENCE AND TECHNIQUES
(2015)
Article
Nuclear Science & Technology
Luo Cheng-Ming, Tian Shun-Qiang, Wang Kun, Zhang Man-Zhou, Zhang Qing-Lei, Jiang Bo-Cheng
NUCLEAR SCIENCE AND TECHNIQUES
(2015)
Article
Nuclear Science & Technology
Tian Shun-Qiang, Jiang Bo-Cheng, Leng Yong-Bin, Zhao Zhen-Tang
NUCLEAR SCIENCE AND TECHNIQUES
(2014)
Article
Nuclear Science & Technology
Tian Shun-Qiang, Jiang Bo-Cheng, Zhou Qiao-Gen, Leng Yong-Bin, Zhao Zhen-Tang
NUCLEAR SCIENCE AND TECHNIQUES
(2014)
