|Message: Re: nOfSecondary Weighting||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, Particle weighting factor is normally equal to 1. It is basically introduced for event biasing such as "Importance Sampling". Please look at "Geant4 Application Guide, Section 3.7 Event Biasing Techniques". If your application does not use such event biasing techniques, the weights of tracks are always 1. Concerning to getting a energy spectra of neutrons, I would like to confirm if you define scorers with respect to energy bins. i.e. one scorer is only for energy bins. The index number of scorer output corresponds to the geometry cell number. If you want to get energy spectra (1MeV to 4MeV in 1 MeV bin), you may do: # # define scoring geometry # with 30 sliced-cells in z-axis # /score/create/boxMesh boxMesh_1 /score/mesh/boxSize 100. 100. 100. cm /score/mesh/nBin 1 1 30 # # define scorers and filters # /score/quantity/noOfSecondary score1stbin /score/filter/particleWithEnergy n_1stBin neutron 1.0 2.0 /score/quantity/noOfSecondary score2ndbin /score/filter/particleWithEnergy n_2ndBin neutron 2.0 3.0 /score/quantity/noOfSecondary score3rdbin /score/filter/particleWithEnergy n_3rdBin neutron 3.0 4.0 # /score/close # Each scorer (score1stbin,score2ndbin, score3rdbin) get numbers of generated neutrons within assigned energy interval of neutrons. Please be sure that the index number of each scorer stands for the cell number, in this case 1 x 1 x 30 cells. Best regards, Tsukasa Aso
|Inline Depth:||Outline Depth:||Add message:|