نتایج جستجو برای: commissioning beam
تعداد نتایج: 116791 فیلتر نتایج به سال:
In a synchrotron such as JHF 3GeV proton synchrotron (PS) and 50GeV PS, choice of an operating point in tune space depends mostly high intensity behavior of a proton beam, not by error fields of magnet manufacturing. Taking that into account, we have started a dry run of optimisation of an operating point, namely simulation of tune survey with space charge effects. The idea is to simulate the e...
This project covers simulations of main beam transport in linear colliders, with an emphasis on integrated damping ring to IP simulations; studies of the sources and transport of beam halo from its origin to the IP; Spin polarization transport from the damping ring to the IP; implementation of modeling tools as a diagnostic for addressing commissioning and operational issues. Each of these topi...
The BBQ tune (Q) and chromaticity (Q’) diagnostic systems played a crucial role during the LHC commissioning while establishing circulating beam and first ramps. Early on, they allowed to identify issues such as residual tune stability, beam spectrum interferences and beam-beam effects – all of which may impact beam life-times and thus are being addressed in view of nominal LHC operation. This ...
The Linac Coherent Light Source (LCLS) is a SASE xray Free-Electron Laser (FEL) project presently under construction at SLAC [1]. The injector section, from drive-laser and RF photocathode gun through first bunch compressor chicane, was installed in fall 2006. Initial system commissioning with an electron beam has recently been completed. The second phase of construction, including second bunch...
The LCLS hard x-ray Free Electron Laser at SLAC reported first lasing in April of 2009. Since then two successful user runs have been completed at the two soft x-ray stations. The first hard x-ray station has started commissioning in July of 2010. Beam diagnostics play an essential role for tuning the machine and delivering the requested beam properties to the users. An overview of the LCLS pho...
The Relativistic Heavy Ion Collider (RHIC) construction is progressing steadily towards completion in 1999 when beams will circulate in both collider rings. One of the major tests of the RHIC project was the commissioning of the first sextant with gold ion beams in early 1997. This is a report on preparation of the RHIC accelerator systems for the first sextant test. It includes beam position m...
MedAustron is the Austrian center for hadron therapy and non-clinical research. The accelerator design is based on the PIMMS study [1] and features proton beams of up to 800 MeV and carbon ion beams of up to 400 MeV/u. The accelerator is currently being installed and the beam commissioning has started early 2013. The injector comprising three ECR sources, an RFQ and an IH-mode structure has alr...
Every accelerator or storage ring system consists of a charged particle beam propagating through a beam line. Although a number of computer programs exist that simulate the propagation of a beam% a given beam line, only a few provide the capabilities for designing, commissioning and operating the beam line. This paper shows how a “multi-track” simulation and analysis code can be used for these ...
This paper will outline the progress with LHC commissioning to date, detailing the performance achieved with all the main LHC beam instrumentation systems. It will include an overview of the beam loss system and its role in machine protection, along with that of the beam position system and its use for automatic orbit control. Results will be shown from the highly sensitive base band tune syste...
Purpose: The authors report comprehensive commissioning and quality assurance (QA) procedures for Intrabeam, Intra-Operative radiotherapy (IORT) unit. The Intrabeam system miniature X-ray source is a 50 kV and 40 μA unit. Methods: The authors’ tests include measurements of output, beam deflection, isotropy, kVp and mAs measurements, quality index, isodose, reproducibility, linearity, depth dose...
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