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Townsend ionisation coefficient, two ways

The same calculation run twice, side by side. Change anything on either side and the difference is shown output by output. This page is a link: both sets of numbers are in the address bar.

Side A open alone

The fill gas. Sets the empirical A and B coefficients.

Torr

The gas pressure in the gap.

V/cm

The field across the gap — from the electric field calculation, in volts per centimetre.

Side B open alone

The fill gas. Sets the empirical A and B coefficients.

Torr

The gas pressure in the gap.

V/cm

The field across the gap — from the electric field calculation, in volts per centimetre.

Swap sides

What changed

The two sides are the same. Change something on either.

Output A B B against A
α Ionisation coefficient 0.007405 /cm 0.007405 /cm same

Side A, with its numbers

0.007405 /cm=12⁢5 Torr⁢exp−180⁢5 Torr100 V/cm
LaTeX 
0.007405\,\mathrm{/cm} = 12 \cdot 5\,\mathrm{Torr} \cdot \exp\left(-\frac{180 \cdot 5\,\mathrm{Torr}}{100\,\mathrm{V/cm}}\right)

Side B, with its numbers

0.007405 /cm=12⁢5 Torr⁢exp−180⁢5 Torr100 V/cm
LaTeX 
0.007405\,\mathrm{/cm} = 12 \cdot 5\,\mathrm{Torr} \cdot \exp\left(-\frac{180 \cdot 5\,\mathrm{Torr}}{100\,\mathrm{V/cm}}\right)