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Non-ideal position estimation results in degraded performance of synchronous motor drive systems due to reduction of the average capability of the drive as well as torque harmonics of different orders. The signature and extent of the…

系统与控制 · 电气工程与系统科学 2023-10-11 Prerit Pramod

A single-ion reservoir has been tested, and characterized in order to be used as a highly sensitive optical detector of electric signals arriving at the trapping electrodes. Our system consists of a single laser-cooled $^{40}$Ca$^+$ ion…

The repeated passage of a coasting ion beam of a storage ring through a thin target induces a shift in the revolution frequency due to the energy loss in the target. Since the frequency shift is proportional to the beam-target overlap, its…

Self-injection locking is a dynamic phenomenon which provides passive stabilization of a lasers emission frequency via resonant optical feedback. The stabilization coefficient depends on the level of resonant feedback and quality factor of…

To investigate the dynamical behavior of a quantum system embedded in a memory environment, it is crucial to obtain the knowledge of the reservoir spectral density. However, such knowledge is usually based on a priori assumptions about the…

量子物理 · 物理学 2021-05-26 Wen-Zhao Zhang , Xian-Ting Liang , Jiong Cheng , Ling Zhou

Detrimental beam dynamics effects limit performance of high intensity rapid cycling synchrotrons (RCS) such as the 8 GeV proton Fermilab Booster. Here we report the results of comprehensive experimental studies of various beam intensity…

加速器物理 · 物理学 2021-04-14 Jeff Eldred , Valeri Lebedev , Kiyomi Seiya , Vladimir Shiltsev

A high-precision intra-bunch-train beam orbit feedback correction system has been developed and tested in the ATF2 beamline of the Accelerator Test Facility at the High Energy Accelerator Research Organization in Japan. The system uses the…

加速器物理 · 物理学 2021-02-03 D. R. Bett , P. N. Burrows , C. Perry , R. Ramjiawan , N. Terunuma , K. Kubo , T. Okugi

The PETRA IV project for upgrading the 2.3 km 6 GeV PETRA III storage ring to a diffraction-limited synchrotron radiation source is nearing the end of its detailed technical design phase. We present the ring lattice based on the hybrid…

Super Heavy Experimental Ring (SHER) is one of the rings of the next accelerator complex High Intensity Heavy Ion Accelerator Facility (HIAF) at IMP[4]. Here, present ideas of the lattice design for the operation of the large acceptance…

加速器物理 · 物理学 2015-06-16 X. Gao , J. C. Yang , J. W. Xia , W. P. Chai , J. Shi , G. D. Shen

The testing of atmosphere-breathing electric propulsion intakes is an important step in the development of functional propulsion systems which provide sustained drag compensation in very low Earth orbits. To make satellite operations more…

Reservoir computing (RC) offers efficient temporal data processing with a low training cost by separating recurrent neural networks into a fixed network with recurrent connections and a trainable linear network. The quality of the fixed…

新兴技术 · 计算机科学 2021-05-17 John Moon , Wei D. Lu

Reservoir expansion can improve online independent component analysis (ICA) under nonlinear mixing, yet top-$n$ whitening may discard injected features. We formalize this bottleneck as \emph{reservoir subspace injection} (RSI): injected…

机器学习 · 计算机科学 2026-03-03 Wenjun Xiao , Yuda Bi , Vince D Calhoun

Recently, the TRIUMF Storage Ring (TRISR), a storage ring for the existing Isotope Separator and Accelerator-I (ISAC-I) radioactive ion beam facility at TRIUMF, was proposed. It may be possible to directly measure neutron-induced radiative…

加速器物理 · 物理学 2026-05-05 Kihong Pak , Barry Davids , Yong Kyun Kim

This study presents a comprehensive end-to-end simulation analysis of the optical imaging performance of the China Survey Space Telescope (CSST) under in-orbit conditions. An integrated system model incorporating five static and two dynamic…

天体物理仪器与方法 · 物理学 2025-11-11 Zhang Ban , Xiao-Bo Li , Xun Yang , Yu-Xi Jiang , Hong-Cai Ma , Wei Wang , Jin-guang Lv , Cheng-Liang Wei , De-Zi Liu , Guo-Liang Li , Chao Liu , Nan Li , Ran Li , Peng Wei

This study proposes a control strategy to ensure the safe operation of modern power systems with high penetration of inverter-based resources (IBRs) within an optimal operation framework. The objective is to obtain operating points that…

系统与控制 · 电气工程与系统科学 2026-01-26 Francesca Rossi , Juan Carlos Olives-Camps , Eduardo Prieto-Araujo , Oriol Gomis-Bellmunt

The irradiation represents a useful tool for determining the characteristics of defects in semiconductors as well as a method to evaluate their degradation, fact with important technological consequences. In this contribution, starting from…

仪器与探测器 · 物理学 2008-11-26 Sorina Lazanu , Ionel Lazanu

We have investigated the depletion voltage changes, the leakage current increase and the charge collection efficiency of a silicon microstrip detector identical to those used in the inner layers of the BaBar Silicon Vertex Tracker (SVT)…

Intrabeam scattering (IBS) is a fundamental effect that can limit the performance of high-brightness electron machines, yet it has so far been neglected in standard modelling of RF photoinjectors. Recent measurements at SwissFEL reveal that…

加速器物理 · 物理学 2025-10-03 Thomas Geoffrey Lucas , Paolo Craievich , Eduard Prat , Sven Reiche , Erion Gjonaj

There has been an increasing interest in the monitoring of nuclear fuel for power reactors by detecting the anti-neutrinos produced during operation. Small liquid scintillator detectors have already demonstrated sensitivity to operational…

仪器与探测器 · 物理学 2007-05-23 R. W. McKeown , D. E. Reyna

In atomic and molecular phase measurements using laser-induced fluorescence detection, optical cycling can enhance the effective photon detection efficiency and hence improve sensitivity. We show that detecting many photons per atom or…

原子物理 · 物理学 2018-11-21 Zack Lasner , David DeMille