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Quenching .tab file

This file can either contain a single float (for a constant quenching) or two columns with a sampling of the arguments and values of the function to be used for interpolation in the case of en energy-dependent quenching factor (a simple linear interpolation is used). The quenching factor \(q_T\) must depend on the nuclear recoil energy \(E_R\) (in keV). A different file for the quenching factor of each element in the target can be provided. All the lines in the file that do not match the expected format are ignored with the exception of the first, that is interpreted as a help string of the experiment class.
Naming convention of the quenching files:
>>>[element.name for element in WD.XENON_1T_2018.target.element] 
['xenon']
The name of the file is:
xenon_quenching.tab
>>>[element.name for element in WD.DAMA_LIBRA_2018.target.element] 
['sodium','iodine']
The name of the files are:
sodium_quenching.tab
iodine_quenching.tab