Create Accurate MCNP Phantom Templates for Radiation Dose Calculations

  • Thread starter Thread starter tehfrr
  • Start date Start date
  • Tags Tags
    Mcnp
Click For Summary
SUMMARY

The discussion focuses on creating accurate MCNP phantom templates for radiation dose calculations, specifically referencing the ICRP 23 reference man model. The user is attempting to calculate photon doses from a cat treated with I-131 and is struggling with the proportionality and volume of macrobodies in MCNP. They express a need for existing templates or phantoms to avoid redundant work, as creating organ phantoms for each simulation is inefficient. The conversation highlights the complexity of the reference man model and suggests simplifying the geometry by using water-based shapes.

PREREQUISITES
  • Understanding of MCNP (Monte Carlo N-Particle Transport Code) software
  • Familiarity with radiation dose calculations and photon interactions
  • Knowledge of ICRP 23 reference man model and its anatomical details
  • Basic skills in geometry creation using macrobodies in MCNP
NEXT STEPS
  • Research existing MCNP phantom templates and libraries for radiation dose calculations
  • Learn about creating simplified geometries in MCNP using water-based models
  • Explore the parameters and usage of GQ surfaces in MCNP for complex shapes
  • Investigate best practices for modeling organ phantoms in medical physics simulations
USEFUL FOR

Medical physicists, radiation safety professionals, and researchers involved in radiation dose assessments and MCNP simulations.

tehfrr
Messages
52
Reaction score
0
Does anyone know if there are templates for things such as the ICRP 23 reference man (70kg)? I am trying to create one for a little side project I am doing (calculating the photon dose my friend gets from sleeping next to his cat that has been treated with I-131). I am trying to create the phantom using macrobodies, and its turning out to be a real pain, getting it proportinate while obtaining the proper volume. There has to be a colection of phantoms somewhere, I would think these dose calculations have been done over and over again for a long time now. I can't picture people recreating a body or organ phantom for every new simulation. I have no doubt I can create this but there has to be a better way. Any ideas?
 
Engineering news on Phys.org
If this is your first time using MCNP, your professors are probably trying to get you aquainted with how to create geometries. The reference man is pretty complicated with organs and limbs. Can you just do a person shape and make it out of water? That would make things easier for you.
 
I have some MCNP experience, mostly criticality/Keff calculations with lattices of boxes and cylinders. Reactor fuel assemblies, fuel storage vaults, etc. This is all my class at the uni plus a MCNP class by Forrest Brown at a national lab really taught us. The health/medical physics photon stuff is pretty new though. Its not a class assignment, its something I am tinkering with on my own to figure out how it works. I was just thinking that I am re-inventing the wheel here. I guess if I can't find anything better ill just make one out of macrobodies, a rectangular box for arms, legs and torso, and a union of a cylinder and sphere for the head. Tried to do the cone/elipsoid structure with a GQ surface but I don't really understand the parameters of it (manual didnt help).
 

Similar threads

  • · Replies 7 ·
Replies
7
Views
4K
  • · Replies 1 ·
Replies
1
Views
4K
  • · Replies 1 ·
Replies
1
Views
5K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 3 ·
Replies
3
Views
3K
Replies
5
Views
2K
  • · Replies 14 ·
Replies
14
Views
3K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 2 ·
Replies
2
Views
6K