Recent content by Alexander Camargo

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    Help in cut geometry

    Could someone tell me why this happens when I cut geometry? The program that i used is Vised X_225 and my mcnpx version is 2.7 Sorry for my posts, I'm really in trouble.
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    Deficiencies in Vised compared with MCNP

    Hello. Did you try pick the file input and put it in the mcnp folder? did try put the all areas? I had a similar problem. I put VISED in the same folder as mcnp and the input file as well. add in addition to the volumes, also areas and try to put the files in the mcnp folder. Sorry, i am a...
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    MCNPX - problem in cross-section

    Thanks for help. my idea is to close half of the breast to collimate the beam of conical radiation. but it only colimate when put complete lead. when cut de half, he stop the colimation. What would be diffusion in the breast?
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    MCNPX - problem in cross-section

    Why does mcnpx not recognize the shell when I crop the cell in half? I put on a lead shield. I put everything (covering everything) and it worked. I cut half and the shield stop of work, but the cell is there. 10 2 -0.9500 (-1 2 -3) #20 imp:p=1 VOL=149.2256511 $ espessura /...
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    MCNPX - Question in SDEF card about AXS and EXT

    Hi, i'm using the same model as yours. do you know if there is any difference in results the cone model, for this? very thanks.
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    MCNPX - Question in SDEF card about AXS and EXT

    My code version is 2.7 I have a disk source of R=0.3 cm, 60 cm above in z axis. I want set limits for the x and y axis, but, I can only put one command "axs" and "ext". How can i define two limits with one command? my code it is like this SDEF pos=0 0 60 rad=d1 axs=1 0 0 ext=d2 PAR=2 ERG=0.018...
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    MCNPX - How calculate Kerma (kinetic energy released per unit mass) in Air?

    Thank you so much, you helped me a lot. I understood everything your said, but, when I multiply my results in mev / g by 1.602E-10, I get very low results for what I want. In cell 30 (semi-circular cylinder of air. to obtain kerma in air) i obtained = 6.01751E-05 (mev/g per history)...
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    MCNPX - How calculate Kerma (kinetic energy released per unit mass) in Air?

    i need to kerma in air, but, i found very low results. I need multiplicate my results per 16000000 to found the valor? I want simulate a mamography machine with focal point the 60cm the breast. My card "SDEF" is configured for a one-dimensional collimated beam in direction the -z axis. sorry...
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    MCNPX - How calculate Kerma (kinetic energy released per unit mass) in Air?

    mcnpx 2.7 C Alexander Camargo - 23/10/2018 C *******************Celulas******************************** 10 2 -1.090 (-1 2 -3 4) #20 imp:p=1 VOL=149.2256511 $ espessura / thickness 20 1 -0.9850 (-5 6 -7 8) imp:p=1 VOL=353.4291735 $ mama / breast 30 3 -0.001205...
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    MCNPX - How calculate Kerma (kinetic energy released per unit mass) in Air?

    Hi, my name is alexander, i am student from Institute of radioprotection and dosimetry (IRD). My project is calculate MGD (mean glandular dose) from womans with augmented breast. i am having dificulties to calculate Kerma in air with mcnpx. I drew a block of air above the breast, i am using the...
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