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1. Steve Biggs (thestevebiggs@quitter.se)'s status on Thursday, 26-Jan-2017 18:14:20 UTC Steve Biggs
   Today, I measured #RayleighScattering from a #magnetron Ar plasma. Signal proportional to density. #plasmaphysics Fun! http://qttr.at/1nu0
   • Stephen Sekula likes this.
   • @mcscx@quitter.se repeated this.
   • Steve Biggs (thestevebiggs@quitter.se)'s status on Saturday, 28-Jan-2017 20:36:05 UTC Steve Biggs

     • мросту
     @mrostu Plasma etching machines are typically the size of a large wardrobe.
   • Steve Biggs (thestevebiggs@quitter.se)'s status on Saturday, 28-Jan-2017 20:49:42 UTC Steve Biggs

     • мросту
     @mrostu But etchers do use low temperature plasmas & also often use argon, a magnetron and/or sputtering (i.e. same type of plasma as here).