|Message: Re: distribution of scattering angle in rayleigh scattering||Not Logged In (login)|
Click on the Forum title, e.g. on the "Forums by Category" page, to read a sequence of postings to the Forum and its threads all in one page. If you are only interested in one thread or the thread following a specific posting, click the thread or the posting, which takes you to a smaller page, which contains only the part you are interested in and may be easier to navigate.
Messages are "chained" if there are only replies at the first level, i.e. 1/1.html, 1/1/1.html etc. In case of "chained" messages the message number is replaced by the icon and there is no indentation.
Inline: Display the subject line only or also the text of the posting(s); for the choice "All" the "Outline" choices are switched off.
|1||0||1||no text / full text of posting|
|2||1||All||text for level 1 only / text for All postings|
Outline: Choose the depth of the posting thread, successive toggle controls provide increasing detail.
|1||2||1||2 levels / 1 level (original posting)|
|2||3||2||3 levels / 2 levels|
|3||3||All||3 levels / all levels (all postings)|
i've read the link you gave me the other day (http://bugzilla-geant4.kek.jp/attachment.cgi?id=77&action=edit) and read the paper in the link above again, and i think i get it now:
in the paper: for unpolarized incident light:
sigma_scatt is average of sigma_HH and sigma_VV (<-- read the paper for the meaning of HH and VV).
sigma_VV is independent of the scattering angle theta (between incoming and outgoing momentum), sigma_HH has a minimum at 90 degrees. and that results in the (1+cos^2(theta))*sin(theta) distribution sigma_scatt as we have in GEANT4.
the figure 4 in the paper i referred to in my question above is only for sigma_VV, and that's why we see no dependency on theta when the size of the particle is much smaller than the wavelength lambda.
i'm sorry for not reading the paper carefully and bothering you with this stupid question.