Changeset e7e9231 in sasmodels
- Timestamp:
- Sep 16, 2018 9:32:26 PM (6 years ago)
- Branches:
- ticket_1156
- Children:
- 0b906ea
- Parents:
- 78f8308
- Location:
- sasmodels/models
- Files:
-
- 3 edited
Legend:
- Unmodified
- Added
- Removed
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sasmodels/models/bcc_paracrystal.py
r6530963 re7e9231 30 30 .. math:: 31 31 32 V_\text{lattice} = \frac{ 16\pi}{3} \frac{R^3}{\left(D\sqrt{2}\right)^3}32 V_\text{lattice} = \frac{8\pi}{3} \frac{R^3}{\left(2D/\sqrt{3}\right)^3} 33 33 34 34 … … 100 100 101 101 * **Author:** NIST IGOR/DANSE **Date:** pre 2010 102 * **Last Modified by:** Paul Butler **Date:** September 29, 2016103 * **Last Reviewed by:** Richard Heenan **Date:** March 21, 2016102 * **Last Modified by:** Paul Butler **Date:** September 16, 2018 103 * **Last Reviewed by:** Paul Butler **Date:** September 16, 2018 104 104 """ 105 105 -
sasmodels/models/fcc_paracrystal.py
r6530963 re7e9231 3 3 #note - calculation requires double precision 4 4 r""" 5 Definition 6 ---------- 7 5 8 Calculates the scattering from a **face-centered cubic lattice** with 6 9 paracrystalline distortion. Thermal vibrations are considered to be 7 10 negligible, and the size of the paracrystal is infinitely large. 8 11 Paracrystalline distortion is assumed to be isotropic and characterized by 9 a Gaussian distribution. 10 11 Definition 12 ---------- 12 a Gaussian distribution. 13 13 14 14 The scattering intensity $I(q)$ is calculated as … … 23 23 is the paracrystalline structure factor for a face-centered cubic structure. 24 24 25 Equation (1) of the 1990 reference is used to calculate $Z(q)$, using 26 equations (23)-(25) from the 1987 paper for $Z1$, $Z2$, and $Z3$. 25 Equation (1) of the 1990 reference\ [#CIT1990]_ is used to calculate $Z(q)$, 26 using equations (23)-(25) from the 1987 paper\ [#CIT1987]_ for $Z1$, $Z2$, and 27 $Z3$. 27 28 28 29 The lattice correction (the occupied volume of the lattice) for a … … 88 89 ---------- 89 90 90 Hideki Matsuoka et. al. *Physical Review B*, 36 (1987) 1754-1765 91 (Original Paper) 91 .. [#CIT1987] Hideki Matsuoka et. al. *Physical Review B*, 36 (1987) 1754-1765 92 (Original Paper) 93 .. [#CIT1990] Hideki Matsuoka et. al. *Physical Review B*, 41 (1990) 3854 -3856 94 (Corrections to FCC and BCC lattice structure calculation) 92 95 93 Hideki Matsuoka et. al. *Physical Review B*, 41 (1990) 3854 -3856 94 (Corrections to FCC and BCC lattice structure calculation) 96 Authorship and Verification 97 ---------------------------- 98 99 * **Author:** NIST IGOR/DANSE **Date:** pre 2010 100 * **Last Modified by:** Paul Butler **Date:** September 16, 2018 101 * **Last Reviewed by:** Paul Butler **Date:** September 16, 2018 95 102 """ 96 103 -
sasmodels/models/sc_paracrystal.py
r6530963 re7e9231 1 1 r""" 2 Calculates the scattering from a **simple cubic lattice** with 2 Definition 3 ---------- 4 5 TCalculates the scattering from a **simple cubic lattice** with 3 6 paracrystalline distortion. Thermal vibrations are considered to be 4 7 negligible, and the size of the paracrystal is infinitely large. … … 6 9 by a Gaussian distribution. 7 10 8 Definition 9 ---------- 10 11 The scattering intensity $I(q)$ is calculated as 11 he scattering intensity $I(q)$ is calculated as 12 12 13 13 .. math:: … … 20 20 $Z(q)$ is the paracrystalline structure factor for a simple cubic structure. 21 21 22 Equation (16) of the 1987 reference is used to calculate $Z(q)$, using23 equations (13)-(15) from the 1987 paperfor Z1, Z2, and Z3.22 Equation (16) of the 1987 reference\ [#CIT1987]_ is used to calculate $Z(q)$, 23 using equations (13)-(15) from the 1987 paper\ [#CIT1987]_ for Z1, Z2, and Z3. 24 24 25 25 The lattice correction (the occupied volume of the lattice) for a simple cubic … … 91 91 Reference 92 92 --------- 93 Hideki Matsuoka et. al. *Physical Review B,* 36 (1987) 1754-176594 (Original Paper)95 93 96 Hideki Matsuoka et. al. *Physical Review B,* 41 (1990) 3854 -3856 97 (Corrections to FCC and BCC lattice structure calculation) 94 .. [#CIT1987] Hideki Matsuoka et. al. *Physical Review B*, 36 (1987) 1754-1765 95 (Original Paper) 96 .. [#CIT1990] Hideki Matsuoka et. al. *Physical Review B*, 41 (1990) 3854 -3856 97 (Corrections to FCC and BCC lattice structure calculation) 98 99 Authorship and Verification 100 ---------------------------- 101 102 * **Author:** NIST IGOR/DANSE **Date:** pre 2010 103 * **Last Modified by:** Paul Butler **Date:** September 16, 2018 104 * **Last Reviewed by:** Paul Butler **Date:** September 16, 2018 98 105 """ 99 106
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