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Beamlines at synchrotron light source facilities are powerful scientific instruments used to image samples and observe phenomena at high spatial and temporal resolutions. Typically, these facilities are equipped only with modest compute…

分布式、并行与集群计算 · 计算机科学 2021-11-23 Tekin Bicer , Xiaodong Yu , Daniel J. Ching , Ryan Chard , Mathew J. Cherukara , Bogdan Nicolae , Rajkumar Kettimuthu , Ian T. Foster

The SPIDER experiment, part of the Neutral Beam Test Facility (NBTF) at Consorzio RFX (Padua, Italy), is the prototype of the negative ion source for the ITER neutral beam injectors; the source is coupled to a 100 kV three-grid acceleration…

等离子体物理 · 物理学 2023-04-07 M. Barbisan , B. Zaniol , R. Pasqualotto , G. Serianni , M. Ugoletti

The ISAC polarized beam facility uses a Ti:Sapphire laser for producing spin-polarized beams of short-lived radioactive isotopes, initially 7Li. The laser power and spectral content must be tightly controlled and monitored. The control…

加速器物理 · 物理学 2007-05-23 R. Nussbaumer , D. Dale , H. Hui , J. Richards , P. Levy

Diamond Light Source (DLS), the UK synchrotron facility, attracts scientists from across the world to perform ground-breaking x-ray experiments. With over 3000 scientific users per year, vast amounts of data are collected across the…

分布式、并行与集群计算 · 计算机科学 2016-10-26 Nicola Wadeson , Mark Basham

With the increasing brightness of Light sources, including the Diffraction-Limited brightness upgrade of APS and the high-repetition-rate upgrade of LCLS, the proposed experiments therein are becoming increasingly complex. For instance,…

Data acquisition systems for the accelerator complex at SRRC composed various hardware and software components. Beam signals are processed by related processing electronics, and connect to control system by various type of interfaces in…

仪器与探测器 · 物理学 2007-05-23 Jenny Chen , C. J. Wang , C. H. Kuo , K. H. Hu , C. S. Chen , K. T. Hsu

We summarise the properties of the Sloan Digital Sky Survey (SDSS) project, discuss our software infrastructure, and outline the architecture of the SDSS image processing pipelines. We then discuss two of the algorithms used in the SDSS…

天体物理学 · 物理学 2007-05-23 Robert Lupton , James E. Gunn , Zeljko Ivezic , Gillian R. Knapp , Stephen Kent , Naoki Yasuda

The injection control system of Hefei Light Source (HLS) storage ring is a subsystem of the upgraded HLS control system, which is based upon EPICS. Three programmable logic controllers (PLCs) are used as device controllers, which control…

加速器物理 · 物理学 2007-05-23 Gongfa Liu , Jingyi Li , Weimin Li , Chuan Li , Kaihong Li , Lei Shang

The Herschel Space Observatory is the fourth cornerstone mission in the ESA science programme and performs photometry and spectroscopy in the 55 - 672 micron range. The development of the Herschel Data Processing System started in 2002 to…

天体物理仪器与方法 · 物理学 2010-11-05 Stephan Ott , Herschel Science Centre , European Space Agency

We present here the design, architecture, and first data release for the Solar System Notification Alert Processing System (SNAPS). SNAPS is a Solar System broker that ingests alert data from all-sky surveys. At present, we ingest data from…

地球与行星天体物理 · 物理学 2023-02-22 David E. Trilling , Michael Gowanlock , Daniel Kramer , Andrew McNeill , Brian Donnelly , Nat Butler , John Kececioglu

The High Energy Photon Source (HEPS), is the first fourth-generation storage ring light source being built in the suburb of Beijing, China. The storage ring was designed with the emittance lower than 60 pm.rad with a circumference of 1.36…

加速器物理 · 物理学 2024-06-07 Yuemei Peng , Daheng Ji , Hongfei Ji , Nan Li , Xiaohan Lu , Saike Tian , Yuanyuan Wei , Haisheng Xu , Yaliang Zhao , Yi Jiao , Jingyi Li

The Advanced Photon Source is now in its fifth year of routine beam production. The EPICS-based [1] control system has entered the phase in its life cycle where new control algorithms must be implemented under increasingly stringent…

加速器物理 · 物理学 2007-05-23 D. A. Dohan

The first two years of user service of the third generation light source BESSY II emphasized the importance of a reliable, comprehensive and dense logging of a few thousand setpoints, readbacks, status and alarm values. Today data from…

加速器物理 · 物理学 2007-05-23 R. Bakker , T. Birke , R. Mueller

We have constructed a new laser-Compton-scattering facility, called the LEPS2 beamline, at the 8-GeV electron storage ring, SPring-8. This facility provides a linearly polarized photon beam in a tagged energy range of 1.3--2.4 GeV. Thanks…

SDAMS is the ensemble of database + software packages aimed to the archiving, quick-look analysis, off-line analysis, network accessibility and plotting of the SPOrt produced data. Many of the aspects related to data archiving, analysis and…

天体物理学 · 物理学 2019-08-15 L. Nicastro , G. Calderone

The ATLAS BPTX stations are comprised of electrostatic button pick-up detectors, located 175 m away along the beam pipe on both sides of ATLAS. The pick-ups are installed as a part of the LHC beam instrumentation and used by ATLAS for…

仪器与探测器 · 物理学 2010-05-25 C. Ohm , T. Pauly

Implementation and commissioning of the EPICS based control system for the ISAC radioactive beam facility was completed. The target ion source, mass separator, and low-energy beam-lines started beam production for experiments. In parallel,…

加速器物理 · 物理学 2007-05-23 R. Keitel , D. Bishop , D. Dale , H. Hui , S. Kadantsev , M. Leross , R. Nussbaumer , J. Richards , E. Tikhomolov , G. Waters

We present a fully modular and scalable software pipeline for processing electron microscope (EM) images of brain slices into 3D visualization of individual neurons and demonstrate an end-to-end segmentation of a large EM volume using a…

分布式、并行与集群计算 · 计算机科学 2020-11-20 Rafael Vescovi , Hanyu Li , Jeffery Kinnison , Murat Keceli , Misha Salim , Narayanan Kasthuri , Thomas D. Uram , Nicola Ferrier

At Argonne National Laboratory, we are developing hard X-ray (2 to 20 keV) Transition Edge Sensor (TES) arrays for beamline science. The significantly improved energy resolution provided by superconducting detectors compared to…

仪器与探测器 · 物理学 2021-06-02 T. Guruswamy , L. Gades , A. Miceli , U. Patel , O. Quaranta

We will use EPICS toolkit [1] to build a prototype for upgrading BEPC control system. The purposes are for the following three aspects: (1) Setup a network based distributed control system with EPICS. (2) Study some front-end control…

加速器物理 · 物理学 2007-05-23 C. H. Wang , X. C. Kong , G. Lei , S. F. Xu , Q. Le , J. Zhao