Instruction, scripts and test files for BILBY SANS instrument data reduction

Data reduction instruction

DataReductionHelp is a detailed instruction of how to make Bilby data reduction working

example_data_reduction_settings

This folder contains set of experimental files and files to be customised for every new data set

• set of experimental *.tar files
• input_csv_example.csv file is a formatted list of input data
• mantid_reduction_settings_example.csv is a formatted list of data reduction setting
• reducer_example.py is a reducer file which shall be updated for each set of data; only a block between lines 15-27 shall be updated indicating requested data reduction settings along with a set of the data files to be reduced
• *mask*.xml: transmission and scattering mask files made for any given data set
• 1d_data 1D standard output AgBh file

reduction_scripts_const

This folder contains those scripts used for Bilby data reduction which do not require adaptation for each user experiment

• BilbyCustomFunctions_Reduction.py is a set of subroutines used for the Bilby data reduction
• SANSDataProcessor.py is the main script sitting in the following folder:[root]\MantidInstall\plugins\python\algorithms\WorkflowAlgorithms
• shift_assembled.csv is the table which contains values for tube position correction

additional_scripts

Any other scripts to be used for Bilby data treatment

subtraction

subtraction contains set of scripts to prepare file for subtractions and execute it

• create_subtraction_list.py creates the csv list for the subtraction
• subtraction.py performs subtraction using cvs file written by a standard described in create_subtraction_list.py creates the csv list for the subtraction

other scripts

• control_flux_sums.py calculates flux for the transmision measurements, using cvs list as an input
• sector_masking.py creates a sector mask
• transmission_estimation_T_sample_blocked_beam_out.py estimates ratio between scattered and transmitted neutrons using a transmission mask as an input
• transmission_fit.py is a script to estimate using CalculateTransmission transmission fitted with functions available in Mantid