Themaingoalofpertorphysicsistodeterminetheedgeplasmatemperature,density,powerdispersal,powerasymmetrybetweeninwardtargetandoutwardone,thecontrolabilityofimpurityandneutralparticles.Aboveparameterswillchangewithplasmadensityorheatingpower.Theycanbepidedinto3regimes:linearregime,highrecyclingoneanddetachedone.