Changeset d089a00 in sasmodels for doc/guide/pd
- Timestamp:
- Aug 10, 2018 5:07:45 AM (6 years ago)
- Branches:
- master, core_shell_microgels, magnetic_model, ticket-1257-vesicle-product, ticket_1156, ticket_1265_superball, ticket_822_more_unit_tests
- Children:
- c11d09f, 7b9e4dd
- Parents:
- 86bb5df
- File:
-
- 1 edited
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doc/guide/pd/polydispersity.rst
r86bb5df rd089a00 341 341 the polydispersity *PD* parameter used in SasView. 342 342 343 The dimensionless * Polydispersity Index (PI)* is a measure of the width of the343 The dimensionless **Polydispersity Index (PI)** is a measure of the width of the 344 344 distribution of autocorrelation function decay rates (*not* the distribution of 345 345 particle sizes itself, though the two are inversely related) and is defined by … … 359 359 PI = \sigma^2 / 2\bar \Gamma^2 360 360 361 where $\sigma$ is the standard deviation, allowing a * Relative Polydispersity (RP)*361 where $\sigma$ is the standard deviation, allowing a **Relative Polydispersity (RP)** 362 362 to be defined as 363 363 … … 369 369 greater than 0.7 indicate significant polydispersity. 370 370 371 The * size polydispersity P-parameter* is defined as the relative standard371 The **size polydispersity P-parameter** is defined as the relative standard 372 372 deviation coefficient of variation 373 373 … … 383 383 384 384 For more information see: 385 `ISO 22412:2017, International Standards Organisation (2017) <https://www.iso.org/standard/65410.html>`_. 386 `Polydispersity: What does it mean for DLS and Chromatography <http://www.materials-talks.com/blog/2014/10/23/polydispersity-what-does-it-mean-for-dls-and-chromatography/>`_. 387 `Dynamic Light Scattering: Common Terms Defined, Whitepaper WP111214. Malvern Instruments (2011) <http://www.biophysics.bioc.cam.ac.uk/wp-content/uploads/2011/02/DLS_Terms_defined_Malvern.pdf>`_. 388 S King, C Washington & R Heenan, *Phys Chem Chem Phys*, (2005), 7, 143. 385 386 `ISO 22412:2017, International Standards Organisation (2017) <https://www.iso.org/standard/65410.html>`_. 387 388 `Polydispersity: What does it mean for DLS and Chromatography <http://www.materials-talks.com/blog/2014/10/23/polydispersity-what-does-it-mean-for-dls-and-chromatography/>`_. 389 390 `Dynamic Light Scattering: Common Terms Defined, Whitepaper WP111214. Malvern Instruments (2011) <http://www.biophysics.bioc.cam.ac.uk/wp-content/uploads/2011/02/DLS_Terms_defined_Malvern.pdf>`_. 391 392 S King, C Washington & R Heenan, *Phys Chem Chem Phys*, (2005), 7, 143. 393 389 394 T Allen, in *Particle Size Measurement*, 4th Edition, Chapman & Hall, London (1990). 390 395
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