Basic CLEAN parameters  
.nf
CLEAN__GAIN       [       ] Loop gain
CLEAN__STOP       [       ] Stopping criterium (string)
CLEAN__NITER      [       ] Maximum number of clean components
CLEAN__FRES       [      %] Maximum value of residual (Fraction of peak)
CLEAN__ARES       [Jy/Beam] Maximum value of residual (Absolute)
CLEAN__POSITIVE   [       ] Minimum number of positive components at start
CLEAN__NKEEP      [       ] Min number of components before convergence
.fi

Clean beam user specification
.nf
BEAM__SIZE       [ 0 0 0 ] Major, Minor (in arcsec) and PA (in Degree) 
.fi

Method dependent CLEAN parameters
.nf
CLEAN__INFLATE    [      ] Maximum Inflation factor for UV__RESTORE (MULTISCALE)
CLEAN__NCYCLE     [      ] Max number of Major Cycles (SDI & CLARK methods)
CLEAN__NGOAL      [      ] Max number of comp. in Cycles (ALMA method) 
CLEAN__RATIO      [      ] Smoothing factor (MRC default 0: guess, otherwise must be 2^n)
CLEAN__SIDELOBE   [      ] Min threshold to fit the synthesized beam
CLEAN__SMOOTH     [      ] Smoothing ratio: MRC (def 2 or 4)  and MULTISCALE (def sqrt(3))
CLEAN__SPEEDY     [      ] Speed-up factor (CLARK)
CLEAN__WORRY      [      ] Worry factor (CLARK and MULTISCALE)
.fi

Mosaic related parameters
.nf
MOSAIC__SEARCH    [      ] Threshold to search Clean Comp. in a Mosaic (def 0.2)
MOSAIC__TRUNCATE  [      ] Threshold to mask outer regions in a Mosaic (def 0.2)
.fi

Old (seldom used) names like in MAPPING
.nf
BLC              [  pixel] Bottom left corner of cleaning box
TRC              [  pixel] Top right corner of cleaning box
BEAM__PATCH       [  pixel] Size of cleaning beam ** not clear **
.fi

Restoration control CLEAN parameters
.nf 
CLEAN__RESIDUAL   [-1,0,1]  Control how residuals are added or not - For debug mostly.
.fi 

