Changeset 3556ad7 in sasmodels for sasmodels/models/core_shell_sphere.py


Ignore:
Timestamp:
Mar 20, 2016 6:24:32 AM (8 years ago)
Author:
richardh
Branches:
master, core_shell_microgels, costrafo411, magnetic_model, release_v0.94, release_v0.95, ticket-1257-vesicle-product, ticket_1156, ticket_1265_superball, ticket_822_more_unit_tests
Children:
e796fcb
Parents:
09d7a54
Message:

more docs changes, renamed sld's in core_shell_sphere

File:
1 edited

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  • sasmodels/models/core_shell_sphere.py

    raa2edb2 r3556ad7  
    1919    V_s(\rho_s-\rho_{solv})\frac{\sin(qr_s)-qr_s\cos(qr_s)}{(qr_s)^3}\right] 
    2020 
    21 where $V_s$ is the volume of the outer shell, $V_c$ is 
    22 the volume of the core, $r_s$ is the radius of the shell, $r_c$ is the radius of the 
     21where $V_s$ is the volume of the whole particle, $V_c$ is 
     22the volume of the core, $r_s$ = $radius$ + $thickness$ is the radius of the particle, $r_c$ is the radius of the 
    2323core, $\rho_c$ is the scattering length density of the core, $\rho_s$ is the scattering length 
    2424density of the shell, $\rho_{solv}$ is the scattering length density of the solvent. 
    … …  
    3030effective radius for $S(Q)$ when $P(Q) \cdot S(Q)$ is applied. 
    3131 
    32 Reference 
    33 --------- 
     32References 
     33---------- 
    3434 
    3535A Guinier and G Fournet, *Small-Angle Scattering of X-Rays*, John Wiley and Sons, New York, (1955) 
    … …  
    4949title = "Form factor for a monodisperse spherical particle with particle with a core-shell structure." 
    5050description = """ 
    51     F^2(q) = 3/V_s [V_c (core_sld-shell_sld) (sin(q*radius)-q*radius*cos(q*radius))/(q*radius)^3  
    52                    + V_s (shell_sld-solvent_sld) (sin(q*r_s)-q*r_s*cos(q*r_s))/(q*r_s)^3] 
     51    F^2(q) = 3/V_s [V_c (sld_core-sld_shell) (sin(q*radius)-q*radius*cos(q*radius))/(q*radius)^3  
     52                   + V_s (sld_shell-sld_solvent) (sin(q*r_s)-q*r_s*cos(q*r_s))/(q*r_s)^3] 
    5353 
    5454            V_s: Volume of the sphere shell 
    … …  
    6262parameters = [["radius",      "Ang",        60.0, [0, inf],    "volume", "Sphere core radius"], 
    6363              ["thickness",   "Ang",        10.0, [0, inf],    "volume", "Sphere shell thickness"], 
    64               ["core_sld",    "1e-6/Ang^2", 1.0,  [-inf, inf], "",       "Sphere core scattering length density"], 
    65               ["shell_sld",   "1e-6/Ang^2", 2.0,  [-inf, inf], "",       "Sphere shell scattering length density"], 
    66               ["solvent_sld", "1e-6/Ang^2", 3.0,  [-inf, inf],  "",      "Solvent scattering length density"]] 
     64              ["sld_core",    "1e-6/Ang^2", 1.0,  [-inf, inf], "",       "core scattering length density"], 
     65              ["sld_shell",   "1e-6/Ang^2", 2.0,  [-inf, inf], "",       "shell scattering length density"], 
     66              ["sld_solvent", "1e-6/Ang^2", 3.0,  [-inf, inf],  "",      "Solvent scattering length density"]] 
    6767# pylint: enable=bad-whitespace, line-too-long 
    6868 
    … …  
    7070 
    7171demo = dict(scale=1, background=0, radius=60, thickness=10, 
    72             core_sld=1.0, shell_sld=2.0, solvent_sld=0.0) 
     72            sld_core=1.0, sld_shell=2.0, sld_solvent=0.0) 
    7373 
    7474oldname = 'CoreShellModel' 
    75 oldpars = {} 
     75oldpars = dict( sld_core='core_sld', 
     76               sld_shell='shell_sld', 
     77               sld_solvent='solvent_sld') 
    7678 
    7779def ER(radius, thickness): 
    … …  
    99101         [{'radius': 60.0, 
    100102           'thickness': 10.0, 
    101            'core_sld': 1.0, 
    102            'shell_sld':2.0, 
    103            'solvent_sld':3.0, 
     103           'sld_core': 1.0, 
     104           'sld_shell':2.0, 
     105           'sld_solvent':3.0, 
    104106           'background':0.0 
    105107          }, 0.4, 0.000698838]] 
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