Mie Angular¶

Particula-beta Index / Particula Beta / Data / Process / Mie Angular

Auto-generated documentation for particula_beta.data.process.mie_angular module.

assign_scattering_thetas¶

Assign scattering angles and efficiencies based on the z-axis position within the CAPS instrument.

Arguments¶

alpha - The forward scattering angle in radians.
beta - The backward scattering angle in radians.
q_mie - The Mie scattering efficiency.
z_position - The position along the z-axis in centimeters (cm).
integrate_sphere_diameter_cm - The diameter of the integrating sphere in centimeters (cm).

Returns¶

Tuple: - The forward scattering angle (theta1) in radians. - The backward scattering angle (theta2) in radians. - The ideal scattering efficiency (qsca_ideal) for the given z-axis position.

Signature¶

def assign_scattering_thetas(
    alpha: float,
    beta: float,
    q_mie: float,
    z_position: Union[float, np.float64],
    integrate_sphere_diameter_cm: float,
) -> Tuple[float, float, float]: ...

calculate_scattering_angles¶

Show source in mie_angular.py:63

Calculate forward and backward scattering angles for a given position along the z-axis within the CAPS instrument geometry.

Arguments¶

z_position - The position along the z-axis in centimeters (cm).
integrate_sphere_diameter_cm - The diameter of the integrating sphere in centimeters (cm).
tube_diameter_cm - The diameter of the sample tube in centimeters (cm).

Returns¶

Tuple: - The forward scattering angle (alpha) in radians. - The backward scattering angle (beta) in radians.

Signature¶

def calculate_scattering_angles(
    z_position: Union[float, np.float64],
    integrate_sphere_diameter_cm: float,
    tube_diameter_cm: float,
) -> Tuple[float, float]: ...

discretize_scattering_angles¶

Show source in mie_angular.py:16

Discretize and cache the scattering function for a spherical particle with specified material properties and size.

This function optimizes the performance of scattering calculations by caching results for frequently used parameters, thereby reducing the need for repeated calculations.

Arguments¶

m_sphere - The complex or real refractive index of the particle.
wavelength - The wavelength of the incident light in nanometers (nm).
diameter - The diameter of the particle in nanometers (nm).
min_angle - The minimum scattering angle in degrees to be considered in the calculation. Defaults to 0.
max_angle - The maximum scattering angle in degrees to be considered in the calculation. Defaults to 180.
angular_resolution - The resolution in degrees between calculated scattering angles. Defaults to 1.

Returns¶

Tuple: - - measure - The scattering intensity as a function of angle. - - parallel - The scattering intensity for parallel polarization. - - perpendicular - The scattering intensity for perpendicular polarization. - - unpolarized - The unpolarized scattering intensity.

Signature¶

@lru_cache(maxsize=100000)
def discretize_scattering_angles(
    m_sphere: Union[complex, float],
    wavelength: float,
    diameter: Union[float, np.float64],
    min_angle: int = 0,
    max_angle: int = 180,
    angular_resolution: float = 1,
) -> Tuple[np.ndarray, np.ndarray, np.ndarray, np.ndarray]: ...