|Message: Problems in the number of Cerenkov optical photons.||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)|
Hallo, Iíve a problem in the number of optical photons produced by Cerenkov process. Iím trying to simulate a polystyrene scintillator wrapped with tyvek and with WLS double cladding fibers in it. In my Detector Construction I had to define some spectra: the materialsí refractive indexes, their absorption length, the scintillator scintillation probability and the WLS absorption length and emission probability. Now, if the various spectra have different energy ranges, I get many warnings of the type: Warning: G4MaterialPropertyVector::GetProperty ==> attempt to Retrieve Property above range Warning: G4MaterialPropertyVector::GetProperty ==> attempt to Retrieve Property below range So I had to match the energy ranges each other and the warnings disappear. In doing that Iíve taken care of adjusting the properties in a correct way: for example I asked the scintillation probability out of the original energy range to be 0. Now my problem is: if I enlarge the energy range in which a material refractive index is defined, the number of optical photons produced by Cerenkov process increases. So: an operation I only do to avoid the warnings leads me to a different physical situation!! Note that I kept the material refractive indexes constant in the energy range. Thanks a lot in advantage. Andreas Battaglia
|Inline Depth:||Outline Depth:||Add message:|