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TID Computational Electrodynamics

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AD SLACPortal > Accelerator Research Division > TID Computational Electrodynamics

ACE3P Modeling and Simulations - Applications / Projects

Meshing - CUBIT for building CAD models and generating finite-element meshes. The full documentation and code access instructions can be found at the CUBIT website http://cubit.sandia.gov.

Modeling and Simulation - ACE3P suite of parallel electromagnetic codes based on higher-order finite elements.

Postprocessing - ParaView to visualize unstructured meshes and particle/field data. ParaView is open source, freely available for Linux, Mac, and PC, and is accessible via http://www.paraview.org/.

 

  Omega3P
Co​mplex eigenvalue solver for finding the normal modes in an RF cavity
  S3P 
S-parameter solver to calculate the transmission in open structures
  T3P 
Time-domain solver for transient response to driven fields and beam excitations of wakefields

 

Track3P 
Particle tracking code with surface physics to study multipacting and dark current
 

Pic3P
Particle-in-cell code to simulate self-co​nsistent electrodynamics of charged particle beams

 

TEM3P 
Multi-physics module to perform integrated electromagnetic, thermal, and mechanical analysis

ACE3P capabilities:

Omega3P/S3P can be used to optimize RF parameters, reduce peak surface fields, calculate HOM damping, find trapped modes & their heating effects, design dielectric & ferrite dampers, and others 

T3P uses a driving bunch to evaluate the broadband impedance, trapped modes and signal sensitivity of a beamline component, compute the wakefields of Short bunches with a moving window in 3D Long tapered structures, simulate the beam transit in Large 3D complex structures consisting of lossy dielectrics and terminated in open waveguides (broadband waveguide boundary conditions)

Track3P studies multipacting in cavities & couplers by identifying MP barriers, MP sites and the type of MP trajectories.   

Pic3P calculates the beam emittance in the RF gun design.

TEM3P solves the multiphysics problem involving RF, thermal and mechanical issues 

 
Parallel Higher-Order Finite-Element Method

    This approach provides

    •  Conformal Tetrahedral meshing with quadratic surface
    •  Higher-order elements (p = 1-6)
    •  Parallel processing (memory & speedup)

    that are needed for Virtual Prototyping of Accelerator Structures which requires

    •  Complexity - HOM coupler (fine features) versus cavity
    •  Problem size - multi-cavity structure, e.g. cryomodule
    •  Accuracy - 10s of kHz mode separation out of GHz
    •  Speed - Fast turn around time to impact design

>>> Omega3P Applications / Projects

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NLC Cell Design

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TDR Cavity

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ILC Low Loss Cavity

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ILC - Trapped Modes

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ILC L-Band 5-Cell Cavity

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ILC Crab Cavity

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LARP Deflecting Cavity

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 LARP - Trapped Modes Study in a Rotatable Collimator Design for the LHC Upgrade

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LHC Crab Cavity 800 MHz Baseline Design 

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Project-X Injector Cavity

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 LCLS RF Gun Cavity Design

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S-Band Cavity BPM Design

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X-Band Cavity BPM Design

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>>> S3P Applications / Projects 

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X-Band 90 degree Square Bend

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 ILC SRF Cavity Endgroup

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 PBG S - parameters

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>>> T3P Applications / Projects

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 PEP-II LER BPM

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PEP-X Beam Line Components

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PBG Fiber for Laser Accelaration

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MIT - Photonic Band Gap Structure

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>>> Track3P Applications / Projects

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KEK Ichiro Cavity

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ILC Coupler

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CLIC HDX Structure

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Muon Cavity (201 MHz, 805 MHz)

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SNS Cavity, Coupler

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FRIB Half Wave Resonator (HWR)

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FRIB Quarter Wave Resonator (QWR)

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>>> Pic3P Applications / Projects

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LCLS RF Gun

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Load Balancing for LCLS RF Gun Simulation

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ILC Polarized SRF Gun

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Space-Charge Limited Field Emission

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LCLS Injector

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>>> TEM3P Applications / Projects

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LCLS RF Gun

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CEBAF SRF Cavity

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 ACD Links

 

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