In this paper a study on the relationship between axial speed va, radial shock speed vs, piston speed
vp and pinch temperature with the variation of pressure P0 was carried out. The Lee’s 5 phase
model code was used in this study by configuring the India Bhabha Atomic Research Center
(BARC) plasma focus machine to operate in the pressure (P0) range from 1 Torr to 14 Torr. The
relationships between these parameters were obtained as follows:
Va ≈ 9Po-0.37, Vs ≈ 45P0-0.48, Vp ≈ 30P0-0.47 and Tpinch(max) ≈ 11P0-1