MCNP volumetric source definition

Thread starter Lujain
Start date Mar 24, 2017
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Definition Mcnp Source

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SUMMARY

The discussion focuses on defining a cubic volumetric source in MCNP (Monte Carlo N-Particle Transport Code). Users are instructed to utilize the SDEF card with x, y, and z parameters to specify the source's dimensions. An example is provided for a parallelepiped centered at (0, 0, 0) with dimensions of 40 cm, 10 cm, and 4 cm. The parameters SI1, SP1, SI2, SP2, SI3, and SP3 are also detailed for precise source definition.

PREREQUISITES

Familiarity with MCNP code and its syntax
Understanding of volumetric source definitions in particle transport simulations
Knowledge of geometric parameters and their implications in MCNP
Experience with defining source distributions using SDEF card

NEXT STEPS

Study the MCNP User's Manual for detailed explanations of the SDEF card
Explore examples of complex volumetric source definitions in MCNP
Learn about the implications of source geometry on simulation results
Investigate advanced MCNP features for source distribution customization

USEFUL FOR

This discussion is beneficial for nuclear engineers, radiation physicists, and researchers utilizing MCNP for particle transport simulations, particularly those focused on volumetric source definitions.

Mar 24, 2017

Lujain

I am now in the process to define a cubic volumetric source in mcnp code, does anyone have a clear explanation for that.

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Apr 24, 2017

PSRB191921

Hi,
Use x, y, z parameters in SDEF. For example for a parallepiped centered in (0, 0, 0) with a dimension (40 cm, 10 cm, 4 cm) :
SDEF X=d1 Y=d2 Z=d3 ...
SI1 -20 20
SP1 0 1
SI2 -5 5
SP2 0 1
SI3 -2 2
SP3 0 1
PSR