Changes in sasmodels/models/onion.py [62dc889:db1d9d5] in sasmodels
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sasmodels/models/onion.py
r62dc889 rdb1d9d5 8 8 .. note:: 9 9 10 *radius* represents the core radius $r_0$ and *thickness[k]* represents 10 *radius* represents the core radius $r_0$ and *thickness[k]* represents 11 11 the thickness of the shell, $r_{k+1} - r_k$. 12 12 … … 60 60 and the volume is $V(r) = \frac{4\pi}{3}r^3$. 61 61 62 The volume of the particle is determined by the radius of the outer 62 The volume of the particle is determined by the radius of the outer 63 63 shell, so $V_\text{particle} = V(r_N)$. 64 64 … … 104 104 B&=\frac{\rho_\text{out} - \rho_\text{in}}{e^A-1} 105 105 & C &= \frac{\rho_\text{in}e^A - \rho_\text{out}}{e^A-1} \\ 106 106 107 107 \alpha_\text{in} &= A\frac{r_{\text{shell}-1}}{\Delta t_\text{shell}} 108 108 & \alpha_\text{out} &= A\frac{r_\text{shell}}{\Delta t_\text{shell}} \\ 109 109 110 110 \beta_\text{in} &= qr_{\text{shell}-1} 111 111 & \beta_\text{out} &= qr_\text{shell} \\ … … 123 123 **Linear SLD profile** ($A \sim 0$): 124 124 125 For small $A$, say, $A = -0.0001$, the function converges to that of of a linear 125 For small $A$, say, $A = -0.0001$, the function converges to that of of a linear 126 126 SLD profile with 127 127 … … 159 159 **Constant SLD** ($A = 0$): 160 160 161 When $A = 0$ the exponential function has no dependence on the radius (meaning 161 When $A = 0$ the exponential function has no dependence on the radius (meaning 162 162 $\rho_\text{out}$ is ignored in this case) and becomes flat. We set the constant 163 163 to $\rho_\text{in}$ for convenience, and thus the form factor contributed by … … 197 197 ---------------------------- 198 198 199 * **Author:** 200 * **Last Modified by:** 199 * **Author:** 200 * **Last Modified by:** 201 201 * **Last Reviewed by:** Steve King **Date:** March 28, 2019 202 202 * **Source added by :** Steve King **Date:** March 25, 2019 … … 347 347 single = False 348 348 have_Fq = True 349 effective_radius_type= ["outer radius"]349 radius_effective_modes = ["outer radius"] 350 350 351 351 profile_axes = ['Radius (A)', 'SLD (1e-6/A^2)']
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