README.md

TZPGcalc

Interactive jupyter notebook widget to calculate transmission zone plate grating (TZPG, also known as beam splitting off-axis zone plate) beam sizes and position at the sample and detector planes for the SCS instrument.

The so far implemented features are:

• calculates geometric beam propagation for diffracted beams by the grating (1st, -1st and 0th order)
• calculates geometric beam propagation for focused and unfocused beams by the off-axis zone plate (1st, 0th order)
• calculates beam sizes and position for 2 energies
• calculates sample position (membrane size and pitch) as well as etched facets
• calculates position of the DSSC module 15 as well as filter bar position
• calculates focal length change due to the KBS