e-scatter

Fast CUDA-enabled simulator for electron scattering processes in materials.

Building

Dependencies of the core simulator:

• C++14 compiler (tested with GCC 5)
• CUDA 8.0 or newer
• CUB
• CMake 3.8 or newer

Build the program:

cd e-scatter
mkdir build
cd build
cmake ..
make

To also build all of the utilities, append -DWITH_UTILS=ON to the cmake command. Dependencies required to build the utilities:

• Boost
• muParser
• ImageMagick
• FFTW
• SDL2
• OpenGL
• GLEW

Usage

The main program is located at bin/csdem. It requires a geometry file, which can be generated with bin/line-gen, and an exposure file, which can be generated with scripts/pri-gen.py.

Testing

To run the unit tests, the googletest library should be available in the 3rdparty directory; clone it from github and run cmake with -DWITH_TEST=ON.

cd 3rdparty
git clone https://github.com/google/googletest.git
mkdir -p ../build
cd ../build
cmake .. -DWITH_TEST=ON
make
make test

Creating materials

The material files contain most of the physics involved.

• ELSEPA can be downloaded from the Computer Physics communications Program library. It has an attribute-only license for non-commercial use. We use ELSEPA to compute Mott cross-sections.

• Livermore database EPDL97 or ENDF/B-VII.1