Available SasView sasmodels - Extended parameters description

sasmodels name Parameters Units Range
barbell { 4, 1, 40, 20, 400 }    
barbell_xy { 4, 1, 40, 20, 400, 60, 60 }    
       
  Parameters:    
  Barbell scattering length density 4e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
  Spherical bell radius Ang [0, inf]
  Cylindrical bar radius Ang [0, inf]
  Cylinder bar length Ang [0, inf]
  In plane angle degrees [-inf, inf]
  Out of plane angle degrees [-inf, inf]
       
bcc { 220, 0.06, 40, 4, 1 }    
bcc_xy { 220, 0.06, 40, 4, 1, 60, 60, 60 }    
       
  Parameters:    
  Nearest neighbour distance Ang [-inf, inf]
  Paracrystal distortion factor   [-inf, inf]
  Particle radius Ang [0, inf]
  Particle scattering length density 1e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
  In plane angle degrees [-inf, inf]
  Out of plane angle degrees [-inf, inf]
  Out of plane angle degrees [-inf, inf]
       
capped_cylinder { 4, 1, 20, 20, 400 }    
capped_cylinder_xy { 4, 1, 20, 20, 400, 60, 60 }    
       
  Parameters:    
  Cylinder scattering length density 1e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
  Cylinder radius Ang [0, inf]
  Cap radius Ang [0, inf]
  Cylinder length Ang [0, inf]
  In plane angle degrees [-inf, inf]
  Out of plane angle degrees [-inf, inf]
       
core_shell_cylinder { 4, 4, 1, 20, 20, 400 }    
core_shell_cylinder_xy { 4, 4, 1, 20, 20, 400, 60, 60 }    
       
  Parameters:    
  Cylinder core scattering length density 1e-6/Ang^2 [-inf, inf]
  Cylinder shell scattering length density 1e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
  Cylinder core radius Ang [0, inf]
  Cylinder shell thickness Ang [0, inf]
  Cylinder length Ang [0, inf]
  In plane angle degrees [-inf, inf]
  Out of plane angle degrees [-inf, inf]
       
cylinder { 4, 1, 20, 400 }    
cylinder_xy { 4, 1, 20, 400, 60, 60 }    
       
  Parameters:    
  Cylinder scattering length density 4e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
  Cylinder radius Ang [0, inf]
  Cylinder length Ang [0, inf]
  In plane angle degrees [-inf, inf]
  Out of plane angle degrees [-inf, inf]
       
dab { 50.0 }    
dab_xy { 50.0 }    
       
  Parameters:    
  correlation length Ang [0, inf]
       
ellipsoid { 4, 1, 20, 400 }    
ellipsoid_xy { 4, 1, 20, 400, 60, 60 }    
       
  Parameters:    
  Ellipsoid scattering length density 1e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
  Polar radius Ang [0, inf]
  Equatorial radius Ang [0, inf]
  In plane angle degrees [-inf, inf]
  Out of plane angle degrees [-inf, inf]
       
fcc { 220, 0.06, 40, 4, 1 }    
fcc_xy { 220, 0.06, 40, 4, 1, 60, 60, 60 }    
       
  Parameters:    
  Nearest neighbour distance Ang [-inf, inf]
  Paracrystal distortion factor   [-inf, inf]
  Particle radius Ang [0, inf]
  Particle scattering length density 1e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
  In plane angle degrees [-inf, inf]
  Out of plane angle degrees [-inf, inf]
  Out of plane angle degrees [-inf, inf]
       
flexible_cylinder_ex { 1000.0, 100.0, 20.0, 1.5, 1.0, 6.3 }    
flexible_cylinder_ex_xy { 1000.0, 100.0, 20.0, 1.5, 1.0, 6.3 }    
       
  Parameters:    
  Length of the flexible cylinder Ang [0, inf]
  Kuhn length of the flexible cylinder Ang [0, inf]
  Radius of the flexible cylinder Ang [0, inf]
  Axis_ratio (major_radius/radius   [0, inf]
  Cylinder scattering length density 1e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
       
gaussian_peak { 0.05, 0.005 }    
gaussian_peak_xy { 0.05, 0.005 }    
       
  Parameters:    
  Peak position 1/Ang [-inf, inf]
  Peak width (standard deviation) 1/Ang [0, inf]
       
guinier { 60.0 }    
guinier_xy { 60.0 }    
       
  Parameters:    
  Radius of Gyration Ang [0, inf]
       
hardsphere { 50.0, 0.2 }    
hardsphere_xy { 50.0, 0.2 }    
       
  Parameters:    
  effective radius of hard sphere Ang [0, inf]
  volume fraction of hard spheres   [0, 0.74]
       
HayterMSAsq { 20.75, 19.0, 0.0192, 318.16, 0.0, 71.08 }    
HayterMSAsq_xy { 20.75, 19.0, 0.0192, 318.16, 0.0, 71.08 }    
       
  Parameters:    
  effective radius of hard sphere Ang [0, inf]
  charge on sphere (in electrons) e [0, inf]
  volume fraction of spheres   [0, 0.74]
  temperature, in Kelvin, for Debye length calculation K [0, inf]
  conc of salt, 1:1 electolyte, for Debye length M [-inf, inf]
  dielectric constant of solvent (default water), for Debye length   [-inf, inf]
       
hollow_cylinder { 30.0, 20.0, 400.0, 6.3, 1 }    
hollow_cylinder_xy { 30.0, 20.0, 400.0, 6.3, 1, 90, 0 }    
       
  Parameters:    
  Cylinder radius Ang [0, inf]
  Hollow core radius Ang [0, inf]
  Cylinder length Ang [0, inf]
  Cylinder sld 1/Ang^2 [-inf, inf]
  Solvent sld 1/Ang^2 [-inf, inf]
  Theta angle degrees [-360, 360]
  Phi angle degrees [-360, 360]
       
lamellar { 1, 6, 50 }    
lamellar_xy { 1, 6, 50 }    
       
  Parameters:    
  Layer scattering length density 1e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
  Bilayer thickness Ang [0, inf]
       
lamellarCaille { 30.0, 20, 400.0, 0.1, 6.3, 1.0 }    
lamellarCaille_xy { 30.0, 20, 400.0, 0.1, 6.3, 1.0 }    
       
  Parameters:    
  sheet thickness Ang [0, inf]
  Number of layers   [0, inf]
  d-spacing of Caille S(Q) Ang [0.0, inf]
  Caille parameter 1/Ang^2 [0.0, 0.8]
  layer scattering length density 1e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
       
lamellarCailleHG { 10, 2, 30, 40.0, 0.001, 0.4, 2.0, 6 }    
lamellarCailleHG_xy { 10, 2, 30, 40.0, 0.001, 0.4, 2.0, 6 }    
       
  Parameters:    
  Tail thickness Ang [0, inf]
  head thickness Ang [0, inf]
  Number of layers   [0, inf]
  d-spacing of Caille S(Q) Ang [0.0, inf]
  Caille parameter   [0.0, 0.8]
  Tail scattering length density 1e-6/Ang^2 [-inf, inf]
  Head scattering length density 1e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
       
lamellarFFHG { 15, 10, 0.4, 3.0, 6 }    
lamellarFFHG_xy { 15, 10, 0.4, 3.0, 6 }    
       
  Parameters:    
  Tail thickness Ang [0, inf]
  head thickness Ang [0, inf]
  Tail scattering length density 1e-6/Ang^2 [-inf, inf]
  Head scattering length density 1e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
       
lamellarPC { 33.0, 20, 250.0, 0.0, 1.0, 6.34 }    
lamellarPC_xy { 33.0, 20, 250.0, 0.0, 1.0, 6.34 }    
       
  Parameters:    
  sheet thickness Ang [0, inf]
  Number of layers   [0, inf]
  d-spacing of paracrystal stack Ang [0.0, inf]
  d-spacing polydispersity Ang [0.0, inf]
  layer scattering length density 1e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
       
linear_pearls { 80.0, 350.0, 3.0, 1.0, 6.3 }    
linear_pearls_xy { 80.0, 350.0, 3.0, 1.0, 6.3 }    
       
  Parameters:    
  Radius of the pearls Ang [0, inf]
  Length of the string segment - surface to surface Ang [0, inf]
  Number of the pearls   [0, inf]
  SLD of the pearl spheres 1e-6/Ang^2 [-inf, inf]
  SLD of the solvent 1e-6/Ang^2 [-inf, inf]
       
lorentz { 50.0 }    
lorentz_xy { 50.0 }    
       
  Parameters:    
  Screening length Ang [0, inf]
       
mass_fractal { 10.0, 1.9, 100.0 }    
mass_fractal_xy { 10.0, 1.9, 100.0 }    
       
  Parameters:    
  Particle radius Ang [0.0, inf]
  Mass fractal dimension   [1.0, 6.0]
  Cut-off length Ang [0.0, inf]
       
mass_surface_fractal { 1.8, 2.3, 86.7, 4000.0 }    
mass_surface_fractal_xy { 1.8, 2.3, 86.7, 4000.0 }    
       
  Parameters:    
  Mass fractal dimension   [1e-16, 6.0]
  Surface fractal dimension   [1e-16, 6.0]
  Cluster radius of gyration Ang [0.0, inf]
  Primary particle radius of gyration Ang [0.0, inf]
       
parallelepiped { 4, 1, 35, 75, 400 }    
parallelepiped_xy { 4, 1, 35, 75, 400, 60, 60, 60 }    
       
  Parameters:    
  Parallelepiped scattering length density 1e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
  Shorter side of the parallelepiped Ang [0, inf]
  Second side of the parallelepiped Ang [0, inf]
  Larger side of the parallelepiped Ang [0, inf]
  In plane angle degrees [-inf, inf]
  Out of plane angle degrees [-inf, inf]
  Rotation angle around its own c axis against q plane degrees [-inf, inf]
       
pearl_necklace { 80.0, 350.0, 2.5, 3, 1.0, 1.0, 6.3 }    
pearl_necklace_xy { 80.0, 350.0, 2.5, 3, 1.0, 1.0, 6.3 }    
       
  Parameters:    
  Mean radius of the chained spheres Angstrom [0, inf]
  Mean separation of chained particles Angstrom [0, inf]
  Thickness of the chain linkage Angstrom [0, inf]
  Mean number of pearls in each necklace none [0, inf]
  Scattering length density of the chained spheres Angstrom^2 [-inf, inf]
  Scattering length density of the chain linkage Angstrom^2 [-inf, inf]
  Scattering length density of the solvent Angstrom^2 [-inf, inf]
       
sphere { 1, 6, 50 }    
sphere_xy { 1, 6, 50 }    
       
  Parameters:    
  Layer scattering length density 1e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
  Sphere radius Ang [0, inf]
       
star_polymer { 100.0, 3 }    
star_polymer_xy { 100.0, 3 }    
       
  Parameters:    
  Ensemble radius of gyration squared of an arm Ang [0.0, inf]
  Number of arms in the model   [1.0, 6.0]
       
stickyhardsphere { 50.0, 0.2, 0.05, 0.2 }    
stickyhardsphere_xy { 50.0, 0.2, 0.05, 0.2 }    
       
  Parameters:    
  effective radius of hard sphere Ang [0, inf]
  volume fraction of hard spheres   [0, 0.74]
  perturbation parameter, epsilon   [0.01, 0.1]
  stickiness, tau   [-inf, inf]
       
triaxial_ellipsoid { 4, 1, 20, 400, 10 }    
triaxial_ellipsoid_xy { 4, 1, 20, 400, 10, 60, 60, 60 }    
       
  Parameters:    
  Ellipsoid scattering length density 1e-6/Ang^2 [-inf, inf]
  Solvent scattering length density 1e-6/Ang^2 [-inf, inf]
  Minor equitorial radius Ang [0, inf]
  Major equatorial radius Ang [0, inf]
  Polar radius Ang [0, inf]
  In plane angle degrees [-inf, inf]
  Out of plane angle degrees [-inf, inf]
  Out of plane angle degrees [-inf, inf]
       

Name convention: SasView - sasmodels

SasView name sasmodels name P(Q) S(Q) Multiply Multiplicity
BarBell barbell - - - -
BCCrystal bcc - - - -
CappedCylinder capped_cylinder - - - -
CoreShellCylinder core_shell_cylinder - - - -
Cylinder cylinder - - - -
DAB dab - - - -
Ellipsoid ellipsoid - - - -
FCCrystal fcc - - - -
FlexCylEllipX flexible_cylinder_ex - - - -
PeakGauss gaussian_peak - - - -
Guinier guinier - - - -
HardsphereStructure hardsphere - Y - -
HayterMSAStructure HayterMSAsq - Y - -
HollowCylinder hollow_cylinder - - - -
Lamellar lamellar - - - -
LamellarPS lamellarCaille - - - -
LamellarPSHG lamellarCailleHG - - - -
LamellarFFHG lamellarFFHG - - - -
LamellarPCrystal lamellarPC - - - -
LinearPearls linear_pearls - - - -
Lorentz lorentz - - - -
MassFractal mass_fractal - - - -
MassSurfaceFractal mass_surface_fractal - - - -
Parallelepiped parallelepiped - - - -
PearlNecklace pearl_necklace - - - -
Sphere sphere - - - -
StarPolymer star_polymer - - - -
StickyHSStructure stickyhardsphere - Y - -
TriaxialEllipsoid triaxial_ellipsoid - - - -