|Message: Time of photons in scintillation process||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)|
Hi, there is something I don't understand about the way scintillation is simulated in geant4.
I'm setting just one decay time constant, the fast one, for the moment, with the following optical property to my material (LXe):
If I plot the time of each optical photon produced in the scintillation, I find the histogram that you can find here:
, where x axis is time in picoseconds. I'm a bit puzzled by the first two bins of this histogram, which show a higher content than that I would expect from the following distribution:
where tau = 2.2 ns and N the total number of photons emitted (in my case, around 30 000). I attach a plot of this function between 0 and 100 ps (exp.pdf).
Is this the function geant4 samples to simulate the decay time?
|Inline Depth:||Outline Depth:||Add message:|