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Electron-positron pairs, produced in intense laser-solid interactions, are diagnosed using magnetic spectrometers with image plates, such as the National Ignition Facility (NIF) Electron Positron Proton Spectrometers (EPPS). Although…

The production and propagation of mesons ($\pi, \eta, \rho, \omega, \Phi, K, \bar{K}, J/\Psi$) in proton-nucleus and nucleus-nucleus collisions from 1 - 200 GeV/u is studied within the covariant transport approach HSD, which explicitly…

Nuclear Theory · Physics 2007-05-23 W. Cassing

Electron spin resonance with a scanning tunneling microscope (ESR-STM) combines the high energy resolution of spin resonance spectroscopy with the atomic scale control and spatial resolution of STM. Here we describe the upgrade of a…

Instrumentation and Detectors · Physics 2019-01-30 Fabian D. Natterer , François Patthey , Tobias Bilgeri , Patrick R. Forrester , Nicolas Weiss , Harald Brune

The possibility of constructing a surface exciton polariton (SEP) based sensor at room temperature is explored. The proposed SEP sensor is based on the Kretschmann-Raether configuration of conventional surface plasmon resonance (SPR)…

Mesoscale and Nanoscale Physics · Physics 2019-08-21 Yi Xu , Lin Wu , L. K. Ang

We present a design and performance tests of an intense source of cold hydrogen atoms for loading large magnetic traps. Our source is based on a cryogenic dissociator of molecular hydrogen at 0.6 K followed by a series of thermal…

A tilted-pulse-front pumped terahertz pulse source is proposed for the generation of extremely high field single-cycle terahertz pulses. The very simple and compact source consists of a single crystal slab having a blazed reflection grating…

For the China Spallation Neutron Source (CSNS), a combination of the H- stripping and phase space painting method is used to accumulate a high intensity beam in the Rapid Cycling Synchrotron (RCS). In this paper, firstly, the injection…

Accelerator Physics · Physics 2015-10-19 Ming-Yang Huang , Sheng Wang , Nan Huang , Jing Qiu , Shou-Yan Xu , Liang-Sheng Huang

We demonstrate a novel 2D MOT beam source for cold 6Li atoms. The source is side-loaded from an oven operated at temperatures in the range 600<T<700 K. The performance is analyzed by loading the atoms into a 3D MOT located 220 mm downstream…

Quantum Gases · Physics 2013-05-29 T. G. Tiecke , S. D. Gensemer , A. Ludewig , J. T. M. Walraven

State of the art high-current superconducting accelerators require efficient RF sources with a fast dynamic phase and power control. This allows for compensation of the phase and amplitude deviations of the accelerating voltage in the…

Accelerator Physics · Physics 2018-06-22 G. Kazakevich , R. Johnson , V. Lebedev , V. Yakovlev

The physics basis for an electron-beam based Compton scattering (ECOS) x-ray source is investigated for single-shot experiments at major high energy density facilities such as the Omega Laser Facility, National Ignition Facility, and Z…

Plasma Physics · Physics 2024-05-15 H. G. Rinderknecht , G. Bruhaug , V. Muşat , G. Gregori , H. Poole , G. W. Collins

For the Rapid Cycling Synchrotron of the China Spallation Neutron Source (CSNS/RCS), the electron emission plays an important role in the accelerator limitation. The interactions between the proton beam and the stripping foil were studied,…

Accelerator Physics · Physics 2015-10-19 Ming-Yang Huang , Yu-Dong Liu , Na Wang , Sheng Wang

Production of a GeV photon beam by laser backward-Compton scattering has been playing an important role as a tool for nuclear and particle physics experiments. Its production techniques are now established at electron storage rings, which…

Instrumentation and Detectors · Physics 2019-08-13 Norihito Muramatsu

We present the results from a multiwavelength study of the flaring activity in HBL, 1ES 1959+650, during January 2015-June 2016. The source underwent significant flux enhancements showing two major outbursts (March 2015 and October 2015) in…

Astrophysics of Galaxies · Physics 2018-06-18 Navpreet Kaur , S. Chandra , Kiran S Baliyan , Sameer , S. Ganesh

An innovative approach: MSS - the Method of Spectra Superposition for high energy-resolution (Delta-E) studies on any accelerator of nuclear reactions at fixed targets by magnetic spectrometers, has been invented. For thin targets MSS…

Instrumentation and Detectors · Physics 2020-11-02 A. Gafarov

The power supply studies for the four-horn system for the CERN to Fr\'ejus neutrino Super Beam oscillation experiment are discussed here. The power supply is being studied to meet the physics potential and the mega-watt (MW) power…

Accelerator Physics · Physics 2014-07-01 E Baussan , E Bouquerel , M Dracos , G Gaudiot , F Osswald , P Poussot , N Vassilopoulos , J Wurtz , V Zeter

Generation of collimated, quasi-monoenergetic electron beams (peak energy ~17-22MeV, divergence ~10mrad, energy spread ~20%) by interaction of Ti:sapphire laser pulse of 200fs duration, focussed to an intensity of ~ 2.1x10^18 W/cm^2,with an…

Plasma Physics · Physics 2019-08-09 D. Hazra , A. Moorti , B. S. Rao , A. Upadhyay , J. A. Chakera , P. A. Naik

China Spallation Neutron Source is a high intensity proton accelerator based facility, and its accelerator complex includes two main parts an H- linac and a rapid cycling synchrotron. The RCS accumulates the 80MeV proton beam, and…

Accelerator Physics · Physics 2015-06-25 Liu Renhong , Wang Min , Zhang JunSong , Wang GuangYuan

We present a monoenergetic positron beam specifically tailored to the needs of (near-) surface positron annihilation spectroscopy. The Setup for LOw-energy Positron Experiments (SLOPE) comprises a high-activity 22Na source, a tungsten…

Instrumentation and Detectors · Physics 2024-09-13 Lucian Mathes , Maximilian Suhr , Vassily V. Burwitz , Danny R. Russell , Sebastian Vohburger , Christoph Hugenschmidt

Within an effective hadronic model including electromagnetic interactions via a U$_{\rm em}$(1) gauge, we reinvestigate photon Bremsstrahlung from a hot hadronic gas as expected to be formed in relativistic heavy-ion collisions at SPS…

Nuclear Theory · Physics 2008-11-26 W. Liu , R. Rapp

Photoelectron emission measurements have been performed using a filament-driven multi-cusp arc discharge volume production H^- ion source (LIISA). It has been found that photoelectron currents obtained with Al, Cu, Mo, Ta and stainless…

Plasma Physics · Physics 2015-05-18 J. Laulainen , T. Kalvas , H. Koivisto , J. Komppula , O. Tarvainen