|Message: High energy ion projectiles in cosmic ray simulation||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)|
Hello, for my experiment I must simulate high-energy cosmic-ray ion projectiles impinging on my detector, let's say up to Fe. The energy range I need to cover goes up to some hundred of GeV/n, and I'm wondering whether Geant4 physics is reliable or not for such kind of use-case. I see that using QGSP_FTFP_BERT physics list in version 9.6, for example, ion physics is available up to 100 TeV:
Hadronic Processes for <GenericIon> ----------------------------------- ionInelastic Models: Binary Light Ion Cascade: Emin(GeV)= 0 Emax(GeV)= 4 FTFP: Emin(GeV)= 2 Emax(GeV)= 100000 ionInelastic Crs sctns: Glauber-Gribov nucleus nucleus: Emin(GeV)= 0 Emax(GeV)= 100000 GheishaInelastic: Emin(GeV)= 0 Emax(GeV)= 100000
My question is: can I really trust this model up to 100 TeV? I know this is a pretty dumb question but I would need some rule-of-thumb to decide how much I can go up in energy without falling into a regime where things are known to be broken. I'll also be grateful to anyone pointing me to any validation studies done at such high energies for ion projectiles (even against other simulation codes like Fluka), if there are any. Thanks.
|Inline Depth:||Outline Depth:||Add message:|