|Message: Re: Performance of homogeneous voxelised phantom||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)|
User Sven Lotze wrote:
>> >> On the other hand, as I have to limit the step length as >> done in TestEM11/12 according to voxel size, doesn´t that >> lead to the same problems as my original geometry with >> small volumes limiting the steps?
You can limit the step only for charged particles, not for gamma
>> >> Looking at TestEM11/12, for the deposited energy in each >> step a position along the step is randomly chosen before >> filling it to a histogram. Why is that necessary if max. >> step size is limited corresponding to voxel (=bin) size >> anyway? Why not deposit it at the center of the step?
It is not necessary : it is redundant. But if you relaxe the constraint of stepmax, random energy deposition will continue to assure more on less correct energy deposition profile. It is probably the fastest way to proceed, but you must check at least once than accurancy is preserved.
Indeed, TestEm11 was designed to illustrate various way to get energy profile (histo 1):
- by randomizing energy deposition - by limiting the step size either 'by hand' (run01.mac) or by geometry (run02.mac)
|Inline Depth:||Outline Depth:||Add message:|