Dear Experts, I am trying to calculate dose in human tissue with CT data.I have some questions： 1.A few months ago,I met Problem with voxel .Now i re-create the voxel file with the latest flair version 3.1-5，unfortunately I still have the same problem.Sorry for not replying in time. 2.I’ve read th…

Dear Ye, it seems there are two issues. On the VOXEL card, the Filename is limited to only 8 characters, so this means the voxel file should be in the same directory as your FLUKA input. (You may use a symbolic link) The dicom to voxel conversion bug mentioned in your previous topic is unfort…

test1.flair (2.0 KB) To describe my problem more clearly, I uploaded .inp .vxl and CT data https://drive.google.com/drive/folders/1nAsR_dzth9Krno4XEwZl8O4ZdzbT6YFo?usp=sharing

Dear Ye, The voxel file indeed seems strange. I tried to recreate it from the attached dicom files, but it seems they are unrelated. The dicom files contain two separate scans with a few slices each. The materials are automatically assigned based on the Hounsfield units. The materials definiti…

Dear @horvathd , Thanks for your reply. I checked the uploaded folder and the CT file did contain two scans.The uploaded .vxl file is converted from the first scan.I re-uploaded an example, where I encountered the same problem. CT and Voxel files – Google Drive The error code is" Abort called from…

Dear Ye, when I convert the first case dicom files and open the oxel in Flair I get the following geometry: [test1] But, even if I try to run with your voxel file, I can’t reproduce the error. Which FLUKA version do you have installed? Can you share the output of the following commands? cat $…

Dear @horvathd This is the output [image] Thank you very much for your time and help. Ye

Dear Ye, please update your FLUKA installation to the latest 4-1.1 version, and try again. Cheers, David

Dear @horvathd I updated my FLUKA installation to the latest 4-1.1 version, and tried again.Regrettably, I still have the same problem… [image] Thank you Ye

Dear Ye, do you have this problem with the voxel files you shared in this topic, or is it with the one linked in the old topic? Cheers, David

Dear @horvathd The voxel files in both two topic have this problem. The voxel file linked in the old topic is created by old version.But after I use the new version of flair to convert it ,I still have the same problem. Thank you Ye

Dear Ye, could you share all the .out, .log and .err files, as well as if you are able the dicom files for the old voxel geometry. Cheers, David

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Dose calculation based on CT

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