Velocity (relative to speed of light)

Gamma squared,

γ2 (unitless)

Relativistic

acceleration, α (m/s2)

Per electron predicted force developed, T ˙ e (N)

0.5c

1.3

5.9(10)16

5.4(10)−14

0.9c

5.3

7.7(10)17

7.0(10)−13

0.99c

50

9.1(10)18

8.3(10)−12

0.999c

500

9.0(10)19

8.2(10)−11

0.9999c

5000

9.0(10)20

8.2(10)−10

0.99999998c

25,000,000

4.5(10)24

4.1(10)−6