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An example for Track3P multipacting computation on a single field level. Field gradient: 97e+06

// If you don't give this block, it will use default value
ParticlesTrajectories:  // record particles' trajectory, only for running single
                        //field case
{   ParticleFile: p       // file name
    Skip: 10              // write file each 10 steps
    Start: 10             // start time step for writing file
    Stop: 100000          // stop time step for writing file
}

// Field level(V/m) / Port power(W)
FieldScales:
{
  ScanToken: 0 // 1: scan, 0: no scan
  Scale: 97e+06  //field scale for particle trajectory
}

//Normalize field, only for closed waveguide case
NormalizedField:
{
  StartPoint: 0 0 0.0486225 //start point of the line for field integral calculation
  EndPoint: 0 0 0.2061 //end point of the line for field integral calculation
}

// Primary particles emission

Emitter:
{
  x0: -0.001
  x1: 0.001
  y0: 0.09
  y1: 0.12
  z0: -0.068
  z1: 0.068
  BoundaryID: 6
}

Material:{
  Type: Primary
  BoundarySurfaceID:  6  //Boundary surface ID
}

Material:{
  Type: Secondary
  BoundarySurfaceID:  6  //Boundary surface ID
}

Material:{
  Type: Absorber
  BoundarySurfaceID:  3 4 7 8  //Boundary surface ID
}
Material:{
  Type: SymmetryPlane
  BoundarySurfaceID:  1 2  //Boundary surface ID
}

OutputImpacts: on
// Field information container
Domain:
{
  PostprocessFile: ./vector1/postprocess.in
}

Postprocess: // multipacting postprocess
{
  Toggle: on // on: postprocess, off: no postprocess
  ResonantParticles: // postprocess for resonant particles
  {
    Token: on // on: analysis resonant particles, no: no analysis is done for resonant particles
  }
}

An example of multipacting simulation on a field level scan case

// Field level(V/m) / Port power(W)
FieldScales:
{
  ScanToken: 1 // 1: scan, 0: no scan
  Minimum: 1e+06
  Maximum: 100e+06
}

//Normalize field, only for closed waveguide case
NormalizedField:
{
  StartPoint: 0 0 0.0486225 //start point of the line for field integral calculation
  EndPoint: 0 0 0.2061 //end point of the line for field integral calculation
}

// Primary particles emission

Emitter:
{
  x0: -0.001
  x1: 0.001
  y0: 0.09
  y1: 0.12
  z0: -0.068
  z1: 0.068
  BoundaryID: 6
}

Material:{
  Type: Primary
  BoundarySurfaceID:  6  //Boundary surface ID
}

Material:{
  Type: Secondary
  BoundarySurfaceID:  6  //Boundary surface ID
}

Material:{
  Type: Absorber
  BoundarySurfaceID:  3 4 7 8  //Boundary surface ID
}
Material:{
  Type: SymmetryPlane
  BoundarySurfaceID:  1 2  //Boundary surface ID
}

OutputImpacts: on
// Field information container
Domain:
{
  PostprocessFile: ./vector1/postprocess.in
}

Postprocess: // multipacting postprocess
{
  Toggle: on // on: postprocess, off: no postprocess
  ResonantParticles: // postprocess for resonant particles
  {
    Token: on // on: analysis resonant particles, no: no analysis is done for resonant particles
  }
}

An example of dark current simulation



TotalTime: 3  //total running time in RF cycles, default: 20 RF cycle 

// Field level(V/m) / Port power(W) 
FieldScales:
{
  ScanToken: 0 // 1: scan, 0: no scan
  Scale: 97e+06  //field scale for particle trajectory
}

//Normalize field, only for closed waveguide case
NormalizedField:
{
  StartPoint: 0 0 0.0486225 //start point of the line for field integral calculation
  EndPoint: 0 0 0.2061 //end point of the line for field integral calculation 
}

// Primary particles emission

Emitter:
{
  t0: 0 //time(in RF cycle) for start emission 
  t1: 1 //time(in RF cycle) for end emission 
  Type: 4  
  Position: 4.0388e-4 4.63728e-3 6.49586e-2
  BoundaryID: 6
}

Material:{
  Type: Primary
  BoundarySurfaceID:  6  //Boundary surface ID
}

Material:{
  Type: Secondary
  BoundarySurfaceID:  6  //Boundary surface ID
}

Material:{
  Type: Absorber
  BoundarySurfaceID:  3 4 7 8  //Boundary surface ID
}
Material:{
  Type: SymmetryPlane
  BoundarySurfaceID:  1 2  //Boundary surface ID
}


OutputImpacts: on
// Field information container
Domain:
{
  dt: 0.5
  PostprocessFile: ./vector1/postprocess.in
  MaxImpacts: 1
}

Postprocess: // multipacting postprocess
{
  Toggle: on // on: postprocess, off: no postprocess
  ResonantParticles: // postprocess for resonant particles
  {
    Token: off // on: analysis resonant particles, no: no analysis is done for resonant particles 
    InitialImpacts: 4 // particles with impacts number greater than initial impacts are considered, default is 4 
    EnergyRange: 10 10000 //particles with impact energy fall in this region is considered, default value: >10ev, <10000ev
  }
  DKSingleEmit:
  {
   Token: on
   FileName: DKSingleEmit
  }
}
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