satlas.utilities.utilities.dopplerfactor

satlas.utilities.utilities.dopplerfactor(mass, V)

Calculates the Doppler shift of the laser frequency for a given mass in amu and voltage in V. Transforms from the lab frame to the particle frame. The formula used is

To invert, divide instead of multiply with this factor.

Parameters:

• mass (float) – Mass in amu.
• V (float) – Voltage in volt.

Returns:

Doppler factor.

Return type:

float