نتایج جستجو برای: linac simulation
تعداد نتایج: 562011 فیلتر نتایج به سال:
The Brookhaven Accelerator Test Facility (ATF) consists of a 50-MeV/c electron linac and a high-brightness RF-gun both operating at 2856 MHi. An extremely short (a few picoseconds) electron pulse with a low transverse emittance is generated by the RF-gun. In order to preserve both longitudinal and transverse emittances, great care must be taken in transporting the election beam from the RF-gun ...
Beam operation of the bERLinPro energy recovery linac project, whose construction is under way, will initially start using the photoinjector and booster modules. In a second step the recirculation beam line and the main Linac module will be added. Here the current design status of the main linac module is described. Results of wake field simulations are compared for different set ups. We also r...
The DUVFEL electron linac is designed to produce sub-picosecond, high brighness electron bunches to drive an ultraviolet FEL. The accelerator consists of a 1.6 cell S-band photoinjector, variable pulse length Ti:Sapp laser, 4 SLAC-type S-band accelerating sections, and 4-dipole chicane bunch compressor. In preparation for FEL operation, the compressed electron beam has been fully characterized....
a one dimensional dynamic model for a riser reactor in a fluidized bed catalytic cracking unit (fccu) for gasoil feed has been developed in two distinct conditions, one for industrial fccu and another for fccu using various frequencies of microwave energy spaced at the height of the riser reactor (fccu-mw). in addition, in order to increase the accuracy of component and bulk diffusion, instanta...
We discuss possible acceleration scenarios and methods for a µ + − µ − collider. The accelerator must take the beams from ∼100 MeV to 2 TeV within the muon lifetime (2.2 × 10 −6 E µ /m µ µS), while compressing bunches of ∼10 12 muons from m to cm bunch lengths. Linac, recircu-lating linac, and very rapid-cycling synchrotron approaches are studied. Multiple recirculating linac approaches are mat...
Using two frequency domain and one time domain numerical approaches, we calculate the short-range longitudinal wakefield of the NLC linac accelerating structure, and find that the results agree to 5%. We show that our results are consistent with an analytical formula for the impedance at high frequencies. We, in addition, obtain through fitting a simple formula for the short-range wakefield of ...
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...
An international research consortium has been formed to facilitate evidence-based introduction of MR-guided radiotherapy (MR-linac) and to address how the MR-linac could be used to achieve an optimized radiation treatment approach to improve patients' survival, local, and regional tumor control and quality of life. The present paper describes the organizational structure of the clinical part of...
This paper describes a low-charge-state heavy-ion post-accelerator system for upgrading the Holifield Radioactive Ion Beam Facility. It is comprised of a room temperature 12.5-MHz RFQ, followed by a normal conducting IH linac, a SC IH linac and a SC QWR linac booster. The system is designed to accelerate ions with mass-to-charge ratio up to 140. The system can be used to accelerate beams direct...
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