Recent content by ifa23

Hello, I want to ask about neutron contamination threshold. Is there a threshold for neutron contamination in tissue used LINAC that is safe and has been regulated by an international organization? thanks for your help.

OK thankyou, But the code you demonstrated is exactly what I want, let's say the code in the file is a 90 degree rotation to the left, I also want to make it 90 degrees to the right, the opposite of the phantom image of the file, how do I solve it? because I've tried changing the coordinates ( x...

"tr1 0 -100.595 -100.595 1 0 0 0 0 1 0 -1 0" the code works as a right turn by 90 degrees ( in front of the screen). then i want to rotate this phantom turn left by 90 degrees (behind of screen), so if turn right by 90 degrees, eyes organ is visible, but if turn left by 90 degrees, eyes organ...

Sorry, after i try to learn more to rotate 270 degree, i'm still confused and got stuck to code Sorry, after i try to learn more to rotate 270 degree, i'm still confused and got stuck to code. For example in your TR code above is 90 degree rotation anticlockwise, so if i want to make 270 degree...

Ok, thank you for the explanation. I have learned matrix rotation before that. So, if i want to rotate the head phantom in 270 degrees, the rotation matrix will seems like that right? [0 1 0] [-1 0 0] [0 0 -1] the TR code tr1 0 -100.595 -100.595 0 1 0 -1 0 0 0 0 -1 I have tried in MCNPX...

sorry, here it is. thankyou

Here it is. Before I write this problem to forum. i have tried but got the wrong transformation, head phantom has rotate to right/left side like this not in inside/outside, please check my code, i guess wrote the wrong code in TR code

Hello, I doing my thesis, I'm beginner in MCNPX. I want to ask about transformation in MCNPX, I want to transform this head phantom in inside and outside field ( radiation using LINAC from face to ear) in angle 90° and 270 °. Can anyone help me to solve this problem with transformation code?