slactrac.PWFA.GaussPartBeam¶

class slactrac.PWFA.GaussPartBeam(nparts, q_tot, E, sig_delta, sig_xi, beta, alpha, emit=None, emit_n=None)[source]¶

Generates a Gaussian distribution of particles.

Parameters:

Parameters:	nparts : int Number of particles to use. q_tot : float Total charge of beam. E : float Average beam energy in GeV. sig_delta : float R.M.S. beam energy. beta : float Beam beta function. alpha : float Beam alpha function. emit : float Beam emittance. emit_n : float Normalized beam emittance.

nparts : int

Number of particles to use.

q_tot : float

Total charge of beam.

E : float

Average beam energy in GeV.

sig_delta : float

R.M.S. beam energy.

beta : float

Beam beta function.

alpha : float

Beam alpha function.

emit : float

Beam emittance.

emit_n : float

Normalized beam emittance.

Attributes

`E`	Beam energy in GeV.
`alpha`	Beam alpha $\alpha$ .
`beta`	Beam beta $\beta$ .
`cov`	Covariance for x, x’.
`delta`	Particle coordinates $\delta$ .
`emit`	Beam emittance $\epsilon$ .
`mean`	Mean for x, x’.
`nparts`	Number of particles in the beam.
`sig_delta`	Beam energy spread $\sigma_\delta$ .
`sig_xi`	Std.
`x`	Particle coordinates $x$ .
`xi`	Particle coordinates $\xi$ .
`xp`	Particle coordinates $x'$ .

Methods

phi(beta, alpha)