Introduction to FLUKA

Introduction to FLUKA¶

Here’s where to find FLUKA (Ahdida et al. (2022), Battistoni et al. (2015)).

And here’s where to find FLAIR (Donadon et al. (2024)), the graphical user interface (GUI) for FLUKA and other radiation-transport codes.

Learning resources¶

Complete lectures and exercises are freely available online, direct from the horse’s mouth.

Step 1¶

On FLUKA home page, look for link to the latest course. There are Beginner and Advanced courses. Choose the one you like.

In case no course is visible, find one from more.

Step 2¶

On the course page, click indico page.

Step 3¶

On the indico page, click Timetable.

Step 4¶

On the timetable page, the paper clips throughout the timetable will lead to the freely downloadable lecture and exercise files.

Step 5¶

Have fun.

From experiments to simulation¶

A little more specific¶

Blackhole is not vacuum¶

History¶

Examples¶

Running¶

After the run¶

Not quite what we wanted¶

Detective¶

Files and extensions¶

The first input file¶

Decks and syntax¶

Terminal-Flair correspondence¶

Preprocessor¶

Preprocessor example¶

Range of involvement¶

User routines¶

Applications of user routines¶

Heart of the code¶

Geometry¶

Bodies, regions, materials¶

Names or numbers¶

2D plot¶

We are going to move¶

One way of doing it¶

A shortcut¶

Errors!¶

Errors explained¶

Complex geometries¶

Combinatorial geometries¶

Boolean¶

Input decks, 2D and 3D plots¶

2D sectioning¶

An empty 2D section¶

More 2D sections¶

Another example¶

An empty section¶

An easy example¶

Auto-scanning for errors¶

Lattice¶

One prototype, any number of lattices¶

A single edit does it¶

Rot-defi¶

Voxels¶

Examples of voxel geometry¶

Defining voxels¶

Memory¶

Scoring or tallying¶

Normalization¶

Normalization: an example¶

Spatial bins or mesh tally¶

AUXSCORE¶

Volume¶

Energy balance¶

Contributing components¶

USRBIN on voxel geometry¶

Track-length apportioning¶

How track-length apportioning works¶

When to use¶

More scoring¶

RESNUCLEi¶

RESNUCLEi explained¶

Counters¶

Secondaries from inelastic collisions¶

Number of stars¶

Stopping particles¶

FLUKA-MCNP cheatsheet¶