The `Union_cone` Component

A sample component to separate geometry and phsysics

Identification

Site:
Author: Martin Olsen
Origin: Niels Bohr Instituttet, Universitetsparken 5
Date: 17.09.18

Description

Part of the Union components, a set of components that work together and thus
separates geometry and physics within McStas.
The use of this component requires other components to be used.

1) One specifies a number of processes using process components
2) These are gathered into material definitions using Union_make_material
3) Geometries are placed using Union_box/cylinder/sphere, assigned a material
4) A Union_master component placed after all of the above

Only in step 4 will any simulation happen, and per default all geometries
defined before this master, but after the previous will be simulated here.

There is a dedicated manual available for the Union_components

The position of this component is the center of the cone, and it thus
extends yheight/2 up and down along y axis.

It is allowed to overlap components, but it is not allowed to have two
parallel planes that coincides. This will crash the code on run time.

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
material_string		material name of this volume, defined using Union_make_material	0
priority	1	priotiry of the volume (can not be the same as another volume) A high priority is on top of low.
radius	m	Radius volume in (x,z) plane	0
radius_top	m	Top radius volume in (x,z) plane	0
radius_bottom	m	Bottom radius volume in (x,z) plane	0
yheight	m	Cone height in (y) direction
visualize	1	set to 0 if you wish to hide this geometry in mcdisplay	1
target_index	1	Relative index of component to focus at, e.g. next is +1	0
target_x	m		0
target_y	m	Position of target to focus at	0
target_z	m		0
focus_aw	deg	horiz. angular dimension of a rectangular area	0
focus_ah	deg	vert. angular dimension of a rectangular area	0
focus_xw	m	horiz. dimension of a rectangular area	0
focus_xh	m	vert. dimension of a rectangular area	0
focus_r	m	focusing on circle with this radius	0
p_interact	1	probability to interact with this geometry [0-1]	0
mask_string		Comma seperated list of geometry names which this geometry should mask	0
mask_setting		"All" or "Any", should the masked volume be simulated when the ray is in just one mask, or all.	0
number_of_activations	1	Number of subsequent Union_master components that will simulate this geometry	1

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

The Union_cone Component

Identification

Description

Input parameters

Links

The `Union_cone` Component