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with METHOD = CLARK
A Major-Minor cycles CLEAN method, originally developed by B.Clark, in which clean components are selected using a limited beam patch, and deconvolved through Fourier transform at each major cycle. In mosaic mode (See command MOSAIC), a mosaic clean is performed. Rings and/or stripes may appear on extended sources. Faster than the HOGBOM method for single fields but maybe slower for mosaics. The strategy to search for CLEAN components in CLARK method does not work properly when the secondary side lobes are too large (say larger than 0.3), or in case of high phase noise.