Heterocharge density [C/m3]

0

0.01

0.1

0.5

1

2

Emax in air [kV/mm]

6.52

6.60

7.31

10.5

14.4

22.3

Emax in PTFE [kV/mm]

3.01

3.04

3.36

4.76

6.59

10.2