Implementation and typical use

Deconvolution parameters are controlled by CLEAN_* variables. Progress has been made on automatic guess for Cleaning parameters. The table below presents the current naming scheme, with previous or equivalent names mentioned in parentheses, since these names were (or are still) used by several older packages such as MAPPING, AIPS or CASA. The equivalent ”old” names (mentioned in Upper case below) will remain as aliases, while those mentioned in mixed case have disappeared as they were seldom used before.

CLEAN_STOP Stopping value and its Unit  
     
CLEAN_ARES Absolute residual (ARES)  
CLEAN_FRES Fractional residual (FRES)  
CLEAN_GAIN Loop gain (GAIN)  
CLEAN_INFLATE Inflation factor allowed to display MultiScale clean components  
CLEAN_METHOD Cleaning Method (METHOD)  
CLEAN_NCYCLE Maximum number of Major cycles (Nmajor)  
CLEAN_NITER Maximum number of iterations (NITER)  
CLEAN_NGOAL A number of components for ALMA joint deconvolution only (Ngoal)  
CLEAN_NKEEP Number of iterations used to check convergence (see below)  
CLEAN_POSITIVE Minimum number of positive Clean components  
CLEAN_RATIO Ratio for Dual Resolution clean (Ratio)  
CLEAN_SEARCH Minimum primary beam threshold for searching (Search_W)  
CLEAN_SMOOTH Smoothing factor for Multi Scale Clean (Smooth)  
CLEAN_SPEEDY Speeding factor for Clark (Spexp)  
CLEAN_TRUNCATE Minimum primary beam threshold for restoring (Restore_W)  
CLEAN_WORRY "Worry" factor for Clark (Worry)  



Subsections