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We present pulsed electrically detected magnetic resonance (EDMR) measurements at low magnetic fields using posphorus-doped silicon with natural isotope composition as a model system. Our measurements show that pulsed EDMR experiments, well…

Materials Science · Physics 2015-06-23 L. Dreher , F. Hoehne , H. Morishita , H. Huebl , M. Stutzmann , K. M. Itoh , M. S. Brandt

The low-level RF system (LLRF) generates the drive sent to the high-power equipment. In synchrotrons, it uses signals from beam pick-ups (radial and longitudinal) to minimize the beam losses and provide a beam with reproducible parameters…

Accelerator Physics · Physics 2012-01-13 P. Baudrenghien

A novel concept of high-power transmitters utilizing the Continuous Wave (CW) magnetrons, frequency-locked by phase-modulated signals has been proposed to compensate energy losses caused by Synchrotron Radiation (SR) in the electron ring of…

Accelerator Physics · Physics 2014-04-07 G. Kazakevich

We have designed, fabricated, and successfully tested a prototype mixed-signal, 28x28-binary-input, 10-output, 3-layer neuromorphic network ("MLP perceptron"). It is based on embedded nonvolatile floating-gate cell arrays redesigned from a…

Emerging Technologies · Computer Science 2016-10-12 F. Merrikh Bayat , X. Guo , M. Klachko , M. Prezioso , K. K. Likharev , D. B. Strukov

We report the design, operation and performance of a high-resolution, low-latency, bunch-by-bunch feedback system for nano-beam stabilisation. The system employs novel, ultra-low quality-factor cavity beam position monitors (BPMs), a…

Accelerator Physics · Physics 2022-03-14 D. R. Bett , N. Blaskovic Kraljevic , T. Bromwich , P. N. Burrows , G. B. Christian , C. Perry , R. Ramjiawan

The Mu2e experiment measures the conversion rate of muons into electrons and the Muon g-2 experiment measures the muon magnetic moment. Both experiments require 53 MHz batches of 8 GeV protons to be re-bunched into 150 ns, 2.5 MHz pulses…

Accelerator Physics · Physics 2018-03-28 P. Varghese , B. Chase

The Multipurpose Detector (MPD) \cite{cite1.MPD_CDR} is designed to study of hot and dense baryonic matter in collisions of heavy ions over the atomic mass range 1--197 at the centre of mass energy up to $\sqrt{S_{NN}}$ = 11 GeV (for…

In recent years, a new method for experimental nonlinear modal analysis has been developed, which is based on the extended periodic motion concept. The method is well suited to experimentally obtain amplitude-dependent modal properties…

Systems and Control · Electrical Eng. & Systems 2021-08-16 Maren Scheel

To date, the 120 GeV Fermilab Main Injector accelerator has accelerated a single batch of protons from the 8 GeV rapid-cycling Booster synchrotron for production of antiprotons for Run II. In the future, the Main Injector must accelerate 6…

Accelerator Physics · Physics 2007-05-23 R. Zwaska , S. Kopp , W. Pellico , R. Webber

Coherent optics has demonstrated significant potential as a viable solution for achieving 100 Gb/s and higher speeds in single-wavelength passive optical networks (PON). However, upstream burst-mode coherent detection is a major challenge…

Signal Processing · Electrical Eng. & Systems 2024-09-24 Yongxin Sun , Hexun Jiang , Yicheng Xu , Mengfan Fu , Yixiao Zhu , Lilin Yi , Weisheng Hu , Qunbi Zhuge

We present measurement and analyses of longitudinal timing jitter of Beijing Electron Positron Collider (BEPCII) linear accelerator electron gun. We simulated longitudinal jitter effect of the gun using PARMELA about beam performance…

Accelerator Physics · Physics 2015-10-07 Liu Mingshan , Pei Shilun , Munawar Iqbal

The dipole mode synchrotron frequency is a basic beam parameter; it and a few similarly basic quantities measured at small time intervals serve to characterize the longitudinal beam dynamics throughout the acceleration cycle. The effective…

Accelerator Physics · Physics 2007-05-23 Xi Yang , James MacLachlan , Rene Padilla , C. Ankenbrandt

We experimentally investigate the RF linewidth and timing jitter over a wide range of delay tuning in a self-mode-locked two-section quantum dash lasers emitting at ~ 1.55 micron and operating at ~ 21 GHz repetition rate subject to single…

Optics · Physics 2017-08-02 Haroon Asghar , Ehsan Sooudi , Pramod Kumar , Wei Wei , John. G. Mcinerney

Strong coupling in wave-based systems often causes level repulsion, leading to mode splitting and reduced response at the target frequency. This problem is pronounced in magnetic resonance imaging (MRI), where strong mutual inductance…

Vertical packaging of multiple Giant Magnetoresistance (multi-GMR) stacks is a very interesting noise reduction strategy for local magnetic sensor measurements, which has not been reported experimentally so far. Here, we have fabricated…

Applied Physics · Physics 2020-03-18 J. Torrejon , A. Solignac , C. Chopin , J. Moulin , A. Doll , E. Paul , C. Fermon , M. Pannetier-Lecoeur

Guided mode resonance (GMR), the resonant coupling of free-space light into leaky waveguide modes, is traditionally achieved with periodic patterned structures. However, this approach makes its key properties such as quality factor…

Optics · Physics 2026-04-03 Youxiu Yu , Xiaofeng Xu , Yang Long , Gui-Geng Liu , Dongliang Gao , Xiao Lin , Hao Hu

The muon \textit{g-2}/EDM experiment at J-PARC is designed to precisely measure the muon's magnetic moment and electric dipole moment, driven by discrepancies between theory and previous experiments. A key challenge is the fast…

High Energy Physics - Experiment · Physics 2026-01-08 Hridey Chetri , Deepak Samuel , Saurabh Sandilya , Takashi Yamanaka , Tsutomu Mibe , Taikan Suehara

The splitting processes of bremsstrahlung and pair production in a medium are coherent over large distances in the very high energy limit, which leads to a suppression known as the Landau-Pomeranchuk-Migdal (LPM) effect. We continue study…

High Energy Physics - Phenomenology · Physics 2024-04-22 Peter Arnold , Shahin Iqbal

The peak current limit for the Fermilab Linac was recently studied. The purpose was to learn what components of the present Linac can be used for the first stage of a proposed proton driver[1]. For this application the Linac must provide a…

Accelerator Physics · Physics 2007-05-23 M. Popovic , L. Allen , A. Moretti , E. McCrory , C. W. Schmidt , T. Sullivan

We explore the mechanism for the long-lived quantum coherence by considering the discrete phonon modes: these vibrational modes effectively weaken the exciton-environment interaction, due to the new composite (polaron) formed by excitons…

Chemical Physics · Physics 2017-07-10 Zhedong Zhang , Jin Wang