mag2exp.ltem.relativistic_wavelength#
- mag2exp.ltem.relativistic_wavelength(voltage)#
Relativistic wavelength of an electron accelerated using a voltage U.
The wavelength is calculated using
\[\lambda = \frac{h}{ \sqrt{2 m_e e U \left(1 + \frac{e U}{2 m_e c^2}\right)}}\]where \(m_e\) and \(e\) are the mass and charge of an electron respectively, \(c\) is the speed of light, and \(U\) is the accelerating voltage in V.
- Parameters:
voltage (numbers.Real) – Accelerating voltage in V.
- Returns:
Wavelength in m.
- Return type:
numbers.Real
Example
Accelerating using 300 kV.
>>> import mag2exp >>> mag2exp.ltem.relativistic_wavelength(300e3) 1.9687489006848795e-12