Image

class showermodel.image.Image(signal, lat_profile=True, N_pix=None, int_time=None, NSB=40.0)

Bases: object

Generate a time-varying shower image from a Signal object.

The object contains a time-varying shower image in a circular camera with square pixels of same solid angle. A Nishimura-Kamata-Greisen lateral profile is used to spread the signal contribution from each shower point to several pixels.

Parameters

signal (Signal) – Signal object to be used.
lat_profile (bool, default True) – Use a NKG lateral profile to spread the signal. If False, a linear shower is assumed.
N_pix (int) – Number of camera pixels. If not given, the predefined value in the Telescope object is used.
int_time (float) – Integration time in microseconds of a camera frame. If not given, the predefined value in the Telescope object is used.
NSB (float) – Night sky background in MHz/m^2/deg^2.

signal

Type: Signal

lat_profile

Bool indicating wether a NKG lateral profile is used to spread the signal. If False, a linear shower is assumed.

Type: bool

N_pix

Number of camera pixels.

Type: int

N_pix_r

Number of pixels across a camera radius.

Type: int

sol_angle_pix

Solid angle in stereoradians of a single pixel.

Type: float

int_time

Integration time in microseconds of a camera frame.

Type: float

N_frames

Number of frames.

Type: int

frames

Array of size (N_frames, 2*N_pix_r+1, 2*N_pix_r+1) containing the pixel values at each frame. Array elements not corresponding to any camera pixel are set to -inf.

Type: array

NSB

Night sky background in MHz/m^2/deg^2.

Type: float

NSB_pix

Mean number of background photoelectrons per pixel and frame.

Type: float

show(): Show a camera frame or the sum of all them including background.

animate(): Show an animation of camera frames.

Methods:

Image.show(frame=None, NSB=None, ax=None)

Show a camera frame or the sum of all them including random background.

Parameters

frame (int) – Frame number. If not given, the sum of frames is shown.
NSB (float) – Night sky background in MHz/m^2/deg^2. If not given, the one defined in Image is used.
ax (AxesSubplot object) – Axes instance where the plot is generated. In not given, a new AxesSubplot object is created.

Returns

axes

Return type

AxesSubplot

Image.animate(NSB=None)

Show an interactive animation of camera frames.

Parameters: NSB (float) – Night sky background in MHz/m^2/deg^2. If not given, the one defined in Image is used.
Returns: ani
Return type: HTML