fig1 and a relative energy deposition plot for this scaled up cell are shown in fig1 and 17 respectively referring to fig1 a field plot is shown for a cell such as is shown in fig7 having an insulator length l i of 14 8 millimeters an inner diameter i d at the electrodes of 9 5 millimeters and an inner diameter i d i at the insulator pinch of 5 millimeters field strength at the wall of the cell is shown as is field strength along the centerline of the cell referring next to fig1 relative energy deposition is shown for a treatment cell having the dimensions specified above in reference to fig1 energy deposition at the inner surface of the cell is shown as is energy deposition along the centerline of the cell as can be seen energy deposition along the centerline at the longitudinal center of the cell is about 88 of that measured at the inner surface at the longitudinal center of the cell thus the energy deposition in the cell described above in reference to fig1 is more uniform than for the cell of fig2 either in the form shown in fig2 in the form described in.