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    STUDIA PHYSICA - Issue no. 2 / 2005  
         
  Article:   PRELIMINARY STUDIES ON THE PLASMA NEEDLE.

Authors:  S.D. ANGHEL, ALPAR SIMON, ELŐD HAINAL-FILLA.
 
       
         
  Abstract:  This paper presents the preliminary results obtained for the plasma needle. It has been generated at atmospheric pressure in He, by means of radio-frequency excitation, using a very simple configuration: the sharpened central conductor of a 50  coaxial cable. The plasma has been characterized from both electrical and thermal point of views. It could be operated at various He gas flow-rates (0.25 – 2.5 l/min) with RF absorbed power levels below 1 W, having a temperature in the range of 50 – 110 oC.  
         
     
         
         
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