orm_analysis

Scripts for analyzing the ORM measurements performed with madgui.

Scripts

fit_model.py	Fit a MAD-X model to madgui ORM measurements.
model_params.py	Spit out a list of error parameters that can be fitted for the given model.
model_orbits.py	Compute model orbits and export to .txt files for all given optics using the specified errors.
measured_orbits.py	Convert madgui ORM measurement files to .txt files
bpm_export.py	Read CSV exports of beam profiles, compute weighted mean and export as .txt files.
backtrack_and_fit_tm.py	Visualize and investigate the discrepancies between model and measurements of G3MU3 (the final 90° gantry dipole).
quadscan.py	Investigate kL dependency in the quadscan measurements.
orm_generate.py	Generate a fake ORM measurement using a disturbed MAD-X model. This is used for testing.
orm_info.py	Quickly plot ORM measurements along with model expectations assuming a given error and print the chisq.
plot_folders.py	Plot the .txt files previously generated with model_orbits.py or measured_orbits.py
transpose_folder.py	Invert folder structure for output generated by model_orbits.py or measured_orbits.py this can be useful to faster compare certain parameters/elements with each other.

Examples

fit_model.py:

./fit_model.py -m hht3 --backtrack -e fit0/errors.yml -o fit0/ \
    data/2018-10-20-orm_measurements/M8-E108-F1-I9-G1/*.yml

./fit_model.py --help

The errors.yml file might look as follows:

Δay_h1ms1: 0.1      # absolute error
δax_h1ms2: 0.1      # relative error

model_params.py:

./model_params.py -m hht3 --ealign --twiss --knobs --attrs sbend->e1/e2

./model_params.py --help

model_orbits.py:

./model_orbits.py -m hht3 -o orbits0/ -i errors.yml \
    data/2018-10-20-orm_measurements/M8-E108-F1-I9-G1/*.yml

./model_orbits.py --help

measured_orbits.py:

./measured_orbits.py -m hht3 -o measured/ \
    data/2018-10-20-orm_measurements/M8-E108-F1-I9-G1

./measured_orbits.py --help

bpm_export.py:

./bpm_export.py Gitter-Exporte/*.CSV

backtrack_and_fit_tm.py:

./backtrack_and_fit_tm.py 2018-10-20-orm_measurements/M8-E108-F1-I9-G1/*.yml

Modules

orm_util	OrbitResponse class for reading in ORM measurements, and Analysis class for fitting etc
orm_plot	Functions for plotting orbits and ORM.
util	Text utilities to output tables as .txt files.