[ Identification | Description | Input parameters | Links ]

The `Focus` Component

Turn a photon into a Huygens wavelet. To be used with the SPLIT keyword.

Identification

Site:
Author: Carsten Detlefs, hacked from slit.comp
Origin: ESRF
Date: November 6, 2013

Description

Changes direction of the photon to a random direction
towards the specified target area.
To be used in coherent simulations, preferably with
the SPLIT keyword.

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
dist	m	distance to target	0.0
focus_xw	m	x-width of target	0.0
focus_yh	m	y-height of target	0.0
focus_x0	m	x-center of target	0.0
focus_y0	m	y-center of target	0.0
focus_absolute		Flag - if non-zero, focus_x0 and focus_y0 are in absolute (lab) coordinates.	1

AT (	,	,		) RELATIVE
ROTATED (	,	,		) RELATIVE

The Focus Component

Identification

Description

Input parameters

Links

The `Focus` Component