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In the Large Hadron Collider, electron clouds have been observed to cause slow beam degradation in the form of beam lifetime reduction and slow emittance growth. We present a method for the simulation of such slow effects with arbitrarily…

Accelerator Physics · Physics 2023-02-22 Konstantinos Paraschou , Giovanni Iadarola

This paper describes a setup aimed at measuring the so-called Tilt-To-Length (TTL) coupling in the optical benches of the LISA mission. The TTL is the coupling of the angular jitter of any optical setup into the optical path length between…

Optics · Physics 2026-02-03 Frederic Cleva , Jean-Pierre Coulon , Marco Nardello

The match between the Linac beam energy and the energy determined by the bending field of the Booster magnets is crucial for rf capture, beam quality, and the transmission efficiency in a Booster cycle. The observation of the injection…

Accelerator Physics · Physics 2007-05-23 Xi Yang , James MacLachlan

An emission tomography of laser-induced plasmas employed in the laser induced breakdown spectroscopy (LIBS) requires long signal integration times during which the plasma cannot be considered stationary. To reduce the integration time, it…

Plasma Physics · Physics 2010-08-04 Sergei V. Shabanov , Igor B. Gornushkin

In particle therapy with protons a cyclotron is one of the most used particle accelerators. Here it will be explained how a cyclotron works, some beam dynamics aspects, its major subsystems, as well as the advantages and disadvantages of a…

Medical Physics · Physics 2018-04-24 Jacobus Maarten Schippers

The beam-ion interaction is a potential limitation of beam performance in electron accelerators, especially where the beam emittance is of a great concern in future ultra-low emittance light source. "Conventionally", the beam instability…

Accelerator Physics · Physics 2020-07-15 Chao Li , Saike Tian , Na Wang , Haisheng Xu

Magneto-optical traps (MOTs) based on the $626\;{\rm nm}$, $136\;{\rm kHz}$-wide intercombination line of Dy, which has an attractively low Doppler temperature of $3.3\;\mu{\rm K}$, have been implemented in a growing number of experiments…

Quantum Gases · Physics 2020-07-01 William Lunden , Li Du , Michael Cantara , Pierre Barral , Alan O. Jamison , Wolfgang Ketterle

The Booster Operation Optimization Sequential Time-series for Regression (BOOSTR) dataset was created to provide a cycle-by-cycle time series of readings and settings from instruments and controllable devices of the Booster, Fermilab's…

Accelerator Physics · Physics 2021-04-16 Diana Kafkes , Jason St. John

The Proton Improvement Plan phase II (PIP-II) project currently under construction at FNAL will replace the existing 400 MeV normal conducting linac with a new 800 MeV superconducting linac. The beam power in the downstream rapid-cycling…

Accelerator Physics · Physics 2024-06-03 J. -F. Ostiguy , C. M. Bhat

In this paper, we investigate how Joint Communication And Sensing (JCAS) can be used to improve the Inertial Measurement Unit (IMU)- based tracking accuracy of eXtended Reality (XR) Head-Mounted Displays (HMDs). Such tracking is used when…

Human-Computer Interaction · Computer Science 2022-12-16 Andrea Bedin , Alexander Marinšek , Shaghayegh Shahcheraghi , Nairy Moghadas Gholian , Liesbet Van der Perre

Quadruped robots face limitations in long-range navigation efficiency due to their reliance on legs. To ameliorate the limitations, we introduce a Reinforcement Learning-based Active Transporter Riding method (\textit{RL-ATR}), inspired by…

Robotics · Computer Science 2026-02-10 Minsung Yoon , Sung-Eui Yoon

The Calibration enhancement effort for the Space Telescope Imaging Spectrograph (STIS) aims to improve data calibration via the application of physical modelling techniques. We describe here a model of the Charge Transfer process during…

Astrophysics · Physics 2007-05-23 P. Bristow , A. Alexov

For some synchrotron light source beamline applications, a round beam is preferable to a flat one. A conventional method of obtaining round beam in an electron storage ring is to shift its tune close to a linear difference resonance. The…

Accelerator Physics · Physics 2026-03-09 Yongjun Li , Robert Rainer

The field of particle therapy is quickly growing and yet it's more widespread adoption is limited by size, cost and adaptation to the more conformal treatment techniques. In order to realize the benefits of this modality the equipment used…

Medical Physics · Physics 2018-04-25 Jay Flanz

Sampling shift-invariant (SI) signals with a high dynamic range poses a notable challenge in the domain of analog-to-digital conversion (ADC). It is essential for the ADC's dynamic range to exceed that of the incoming analog signal to…

Signal Processing · Electrical Eng. & Systems 2024-06-18 Yhonatan Kvich , Yonina C. Eldar

Synchrotron radiation sources play a crucial role in fields such as materials science, biology, and chemistry. The beamline, a key subsystem of the synchrotron, modulates and directs the radiation to the sample for analysis. However, the…

Systems and Control · Electrical Eng. & Systems 2024-11-20 Siyu Wang , Shengran Dai , Jianhui Jiang , Shuang Wu , Yufei Peng , Junbin Zhang

Probing vibronic coherence in molecules has been a central topic in ultrafast science, as it is an essential prerequisite to monitoring electronic motion. While experiments have demonstrated that attosecond transient absorption spectroscopy…

Atomic Physics · Physics 2023-08-02 C. H. Yuen , C. D. Lin

Efficient transport of high-current negative ion beams is critical for accurate plasma potential diagnostics using heavy-ion beam probe (HIBP) systems in magnetically confined fusion plasmas. However, strong space-charge effects often…

Plasma Physics · Physics 2025-09-23 M. Nishiura , K. Nakamura , K. Ueda , A. Shimizu , H. Takubo , M. Kanda , T. Ido , M. Okamura

Inconclusive photon subtraction (IPS) is a conditional measurement scheme to force nonlinear evolution of a given state. In IPS the input state is mixed with the vacuum in a beam splitter and then the reflected beam is revealed by ON/OFF…

Quantum Physics · Physics 2009-11-07 Stefano Olivares , Matteo G. A. Paris , Rodolfo Bonifacio

Particle accelerator modeling is an important field of research and development, essential to investigating, designing and operating some of the most complex scientific devices ever built. Kinetic simulations of relativistic, charged…

Accelerator Physics · Physics 2024-05-02 Ryan T. Sandberg , Remi Lehe , Chad E. Mitchell , Marco Garten , Andrew Myers , Ji Qiang , Jean-Luc Vay , Axel Huebl