|Message: How to get the 511 keV annihilation line ..||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)|
Dear GEANT users,
My First Doubt is this :- I have a 2.5 mm Al sheet and I am irradiating it with 3 GeV protons. I have included hadron, muon, and electromagnetic processes in the physics list .... I am seeing a lot of reactions in which secondary photons, neutrons, electrons and positrons are produced.I have a dummy detector placed behind the Al plate which counts these secondary particles (energy type ..) All this is fine ... but effectively, the 511 keV annihilation line should be produced ... I check the output tracking histories and I donot see any indication of this line .... In my code, the eplusAnnihilation() is included for positrons, (ie) pmanager->AddProcess(new G4eplusAnnihilation(), 0,-1,4);
My Second Doubt is this :-
My question is (it may seem extraordinarily silly ...) what do the numbers at the end mean ? Do they mean something specific for different processes.
Could someone please answer my queries ... I would really appreciate it ... Thanks in advance. Manju Sudhakar.
|Inline Depth:||Outline Depth:||Add message:|