README.md

Simple python scripts to calculate the range of electrons and protons in different media.

These are based on values from the NIST PSTAR & ESTAR database, to save manual calculation from the look up tables.
The different media were chosen based on relevance in particle therapy applications.
Note: The code interpolates (linearly) between values for the energy/range values not explicitly listed.
Run with Python 3.8.3
Written by J Yap, 2021

Main files

CSDARangeCalc.py (CSDA range: Protons & Electrons)
ProjRangeCalc_ProtonsOnly.py (PSTAR projected range: Protons only)

Data files

Densities.txt
Electrons/Electrons_Medium_ NIST i.e. Electrons_Air_NIST.txt
Protons/Protons_Medium_NIST i.e. Protons_Air_NIST.txt

Bonus

To add more materials:
-> In .py script, create while loops to call the Medium in function WhichMedia()
-> Create Media.txt file from NIST
-> Add info to Densities.txt

NIST sources

PSTAR: https://physics.nist.gov/PhysRefData/Star/Text/PSTAR.html
ESTAR: https://physics.nist.gov/PhysRefData/Star/Text/ESTAR.html
Material compositions: https://physics.nist.gov/cgi-bin/Star/compos.pl?ap
Definitions: https://physics.nist.gov/PhysRefData/Star/Text/appendix.html