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Related papers: An Overview of the Spallation Neutron Source Proje…

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The neutron time-of-flight (n_TOF) facility at the European Laboratory for Particle Physics (CERN) is a pulsed white-spectrum neutron spallation source producing neutrons for two experimental areas: the Experimental Area 1 (EAR1), located…

The European Spallation Source (ESS) will provide long neutron pulses for experiments on a suite of different instruments. Most of these will perform neutron data acquisition in event mode, i.e. each detected neutron will be characterised…

Neutron star mergers (NSMs) are rapid neutron capture (r-process) nucleosynthesis sites, which eject materials at high velocities, from 0.1c to as high as 0.6c. Thus the r-process nuclei ejected from a NSM event are sufficiently energetic…

High Energy Astrophysical Phenomena · Physics 2020-10-27 Xilu Wang , Brian D. Fields , Matthew Mumpower , Trevor Sprouse , Rebecca Surman , Nicole Vassh

China Spallation Neutron Source (CSNS) is the first high-performance pulsed neutron source in China, which will meet the increasing fundamental research and technique applications demands domestically and overseas. A new distributed data…

Data Analysis, Statistics and Probability · Physics 2016-08-17 H. L. Tian , J. R. Zhang , L. L. Yan , M. Tang , L. Hu , D. X. Zhao , Y. X. Qiu , H. Y. Zhang , J. Zhuang , R. Du

The Rapid Cycling Synchrotron (RCS) in Chinese Spallation Neutron Source (CSNS) accelerates proton beam from 80Mev to 1.6GeV at a repetition rate of 25Hz. All dipole magnets of RCS are operated at AC with biased DC. Aiming at the properties…

Accelerator Physics · Physics 2016-08-16 Qing Li , Xian-jing Sun , Wen Kang , Chang-dong Deng , Wan Chen

We designed, demonstrated, and characterized an atom source based on fiber-based pulsed laser ablation. By using commercially available miniature lens system for focusing nanosecond pulsed laser of up to 225~$\mu$J delivered through a…

Atomic Physics · Physics 2023-05-17 Alto Osada , Ryuta Tamaki , Wenbo Lin , Ippei Nakamura , Atsushi Noguchi

In this paper, we use one-dimensional measurements to infer the four-dimensional phase space density of an accumulated proton beam in the Spallation Neutron Source (SNS) accelerator. The reconstruction was performed by maximizing the…

Accelerator Physics · Physics 2024-12-05 Austin Hoover

The Fermilab Proton Source machines, constituted by Pre-Injector, conventional Linac and Booster synchrotron, at Fermi National Accelerator Laboratory (Fermilab) had have a long history of successful beam operations. Built in late '60s, the…

Accelerator Physics · Physics 2014-09-01 F. G. Garcia , W. Pellico

The production of fast neutrons (1 MeV - 1 GeV) in high energy muon-nucleus interactions is poorly understood, yet it is fundamental to the understanding of the background in many underground experiments. The aim of the present experiment…

High Energy Physics - Experiment · Physics 2015-06-25 V. Chazal , F. Boehm , B. Cook , H. Henrikson , G. Jonkmans , A. Paic , N. Mascarenhas , P. Vogel , J. -L. Vuilleumier

The 750-keV low-energy beam transport of the Los Alamos Neutron Science Center (LANSCE) linac consists of two independent beam lines that facilitate simultaneous injection of H+ and H- beams into the linear accelerator. The efficiency of…

Accelerator Physics · Physics 2018-10-17 Yuri K. Batygin

We describe the Fundamental Neutron Physics Beamline (FnPB) facility located at the Spallation Neutron Source at Oak Ridge National Laboratory. The FnPB was designed for the conduct of experiments that investigate scientific issues in…

Instrumentation and Detectors · Physics 2015-06-22 N. Fomin , G. L. Greene , R. Allen , V. Cianciolo , C. Crawford , T. Ito , P. R. Huffman , E. B. Iverson , R. Mahurin , W. M. Snow

The construction of the 60-MeV proton linac has started as a low-energy front of the KEK/JAERI Joint Project for a high-intensity proton accelerator facility at KEK. The accelerating frequency is 324 MHz. Five UHF klystrons are used as an…

Accelerator Physics · Physics 2007-05-23 S. Fukuda , A. Anami , C. Kubota , M. Kawamura , S. Yamaguchi , M. Ono , H. Nakanishi , S. Miyake , M. Sakamoto

The back-streaming white neutron source (Back-n) is a comprehensive neutron experimental platform for nuclear data measurement, nuclear astrophysics, neutron irradiation, detector calibration, etc. In order to meet a variety of experimental…

Instrumentation and Detectors · Physics 2021-08-17 Xiaolong Gaoa , Hantao Jing , Chungui Duan , Binbin Tian , Yang Li , Xiaoyun Yang , Jilei Sun , Weiling Huang

The rapid cycling synchrotron (RCS) of the China Spallation Neutron Source (CSNS) is a high intensity proton ring with beam power of 100 kW. In order to control the residual activation to meet the requirements of hands-on maintenance, a…

Accelerator Physics · Physics 2013-05-08 Yi-Qing Zou , Na Wang , Ling Kang , Hua-Min Qu , Zhe-Xi He , Jie-Bing Yu

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

In order to dissipate long-lived radioactive waste, not only high ux proton accelerator but also electron linac have been proposed. A proton accelerator directly induces nuclear fission and mutation. On the other hand, electron beam has two…

Accelerator Physics · Physics 2021-04-20 Y. Kawashima , T. Asaka , H. Ego , M. Hara

Fragments productions in spallation reactions are key infrastructure data for various applications. Based on the empirical parameterizations {\sc spacs}, a Bayesian-neural-network (BNN) approach is established to predict the fragment cross…

Nuclear Theory · Physics 2020-12-30 Chun-Wang Ma , Dan Peng , Hui-Ling Wei , Yu-Ting Wang , Jie Pu

A cryogenic apparatus is described that enables a new experiment, nEDM@SNS, with a major improvement in sensitivity compared to the existing limit in the search for a neutron Electric Dipole Moment (EDM). It uses superfluid $^4$He to…

The MEGAPIE project is a key experiment on the road to Accelerator Driven Systems and it provides the scientific community with unique data on the behavior of a liquid lead-bismuth spallation target under realistic and long term irradiation…

The coherent elastic scattering of neutrinos on nuclei, also known as CEvNS, has been studied for several years by the COHERENT program of experiments using neutrinos from stopped-pion decays produced at the Spallation Neutron Source (SNS).…