The `Conics_PP` Component

Identification

Site:
Author: Peter Wilendrup and Erik Knudsen
(derived from Giacomo Resta skeleton-component)
Origin: DTU
Date:

Description

Implements a set of nshells Wolter I Paraboloid/Parabolid pairs using conics.h from ConicTracer.

The component has two distinct modes of specifying the geometry:
a) Via the radii vector, parametrized from largest to smallest radius with a length of 'nshells'

b) By specifying radii rmax and rmin, between which a quadratic law distributes 'nshells' surfaces.

The mirrors are assumed to be touching at the mid-optic plane, i.e. there is no gap between primary
and secondary mirror.
By definition the ratio between primary and secondary mirror glancing angles is 1/3.
At present a single m-value is used for all mirrors.

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
rmin	m	Midoptic plane radius of innermost mirror pair.	0.0031416
rmax	m	Midoptic plane radius of outermost mirror pair.	0.05236
focal_length_u	m	Focal length of upstream mirror.	10.070
focal_length_d	m	Focal length of downstream mirror.	10.070
lp1	m	Upstream paraboloid mirror length.	0.84
lp2	m	Downstream paraboloid mirror length.	0.84
nshells	1	Number of nested shells to expect	4
m	1	Critical angle of mirrors as multiples of Ni.	1
mirr_thick	m	Thickness of mirror shell surfaces - NOT YET IMPLEMENTED	0
disk		Flag. If nonzero, insert a disk to block the central area within the innermost mirror.	1
radii	m	Optional vector of radii (length should match nshells)	NULL
R0	1	Reflectivity at Low angles for reflectivity curve approximation	0.99
Qc	AA-1	Critical scattering vector	0.021
W	AA-1	Width of supermirror cut-off	0.003
alpha	AA	Slope of reflectivity for reflectivity curve approximation	6.07
transmit	1	Fraction of statistics to assign to transmitted beam - NOT YET IMPLEMENTED	0

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

The Conics_PP Component

Identification

Description

Input parameters

Links

The `Conics_PP` Component