Streamline Your MCNP Workflow

Modern, GUI driven MCNP® constructive solid geometry (CSG) model builder, 3-D/2-D viewer and CSG-to-CAD converter

MCNP Visualization
MCNP Geometry Editor
CAD Conversion
CAD Conversion

Efficient Model Creation and Editing

Attila4MC-Tamarack features a powerful, state-of-the-art text editor with an integrated template designed to simplify MCNP model development. The editor includes advanced syntax highlighting, error detection, and robust parsing to help users quickly identify and resolve issues.


Users can interact directly with the 3-D views from within the editor, while the built-in automatic input card completion accelerates model creation. More than 140 fully commented MCNP input cards are included, making it easier to build accurate and well-documented models.

Built-in Assistant Libraries

To further streamline model development, Tamarack includes intelligent Assistants with integrated libraries containing:

  • More than 400 predefined materials
  • Gamma source spectra
  • Flux-to-dose response functions
  • Energy bin definitions
  • Element and isotope databases for quick reference
MCNP input creation
MCNP input creation
MCNP input creation
MCNP input creation
MCNP input creation
MCNP input creation
MCNP input creation

2-D Geometry Visualisation and Plotting

Tamarack also includes a traditional 2-D section viewer with automatic interference detection to identify over-defined and under-defined cells. Users can generate slices along the X, Y, and Z axes, as well as create arbitrary angled sections to inspect complex geometries from any orientation.

2-D geometry visualisation
2-D geometry visualisation
2-D geometry visualisation
2-D geometry visualisation
2-D geometry visualisation
2-D geometry visualisation
2-D geometry visualisation
2-D geometry visualisation
2-D geometry visualisation

The 2-D viewer includes built-in plotting tools for:

  • Source sampling visualisation, including source locations, sampling probabilities, and energy-based colouring
  • DXTRAN spheres (including exclusion radius)
  • F5 tallies (including exclusion radius)

3-D Visualisation and CSG-to-CAD Conversion

Attila4MC-Tamarack provides two advanced 3-D visualisation modes to support model verification and analysis.

The first is a high-performance ray-tracing renderer, capable of displaying even highly complex lattice geometries in a fraction of a second, making it ideal for rapid geometry verification.

The second is a Boundary Representation (B-Rep) renderer, which generates a watertight representation of the Constructive Solid Geometry (CSG) model. This mode enables high-quality visualisation and supports conversion of CSG models into CAD-compatible STEP files.

The B-Rep visualisation also provides interactive feedback by displaying detailed cell metadata at the cursor position, enabling users to quickly identify, inspect, and validate individual regions within the 3-D model during geometry review.

Both rendering modes allow users to:

  • Colour models by cell, material, density, and other attributes
  • Apply multiple axis clipping planes
  • Hide selected cells or materials for detailed inspection
3-D visualisation
3-D visualisation
3-D visualisation
3-D visualisation
3-D visualisation
3-D visualisation
3-D visualisation
3-D visualisation
3-D visualisation
3-D visualisation
3-D visualisation
3-D visualisation
3-D visualisation
3-D visualisation
3-D visualisation

Get in touch

Tell us what you're building and we'll help you get started quickly.

✔ Fast response within 1–2 business days
✔ Evaluation licenses available
✔ Enterprise support options
Contact Tamarack
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