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  Physics Express 2012, 2: 12
  Research Article
Pulsed plasma from a washer stacked plasma gun and its radial velocity inside a curved vacuum chamber
  N C Sasinia, R Paikaray, G Sahoo, D C Patra, J Ghoshb, A Sanyasib  
Department of Physics, Ravenshaw University, Cuttack, Odisha, 753003, India
a Present address: Department of Physics, G C College, Ramachandrapur, Jajpur, Odisha, 755032, India
b Present address: Institute for Plasma Research, Bhat, Gandhinagar, Gujarat, 382428, India

  In our experiment a blob of plasma has been produced using a washer stacked plasma-gun and injected radially to a curved vacuum chamber. The radial drift velocity of plasma blob has been measured using velocity probe by time of flight technique, and has been found to be in order of 104 m/s .Here we reported that the velocity of plasma blob varies exponentially with the radial distance and inversely with the base pressure. The velocity of plasma blob changes directly with the discharging potential and is almost independent to pulse time. The plasma blob expands on propagating in radial direction.
  Plasma blobs; Plasma gun; Drift velocity; Langmuir probe; Time of flight technique  

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