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/*******************************************************************************
*
* McXtrace, x-ray tracing package
* Copyright, All rights reserved
* DTU Physics, Kgs. Lyngby, Denmark
* Synchrotron SOLEIL, Saint-Aubin, France
*
* Component: L_monitor
*
* %Identification
* Written by: Kristian Nielsen and Kim Lefmann
* Modified for X-ray use by Erik Knudsen
* Date: June 22, 2009
* Origin: Risoe
* Release: McXtrace 0.1
*
* Wavelength-sensitive monitor.
*
* %Description
* A square single monitor that measures the wavelength of the incoming
* xray.
*
* Example: L_monitor(xmin=-0.1, xwidth=0.1, yheight=0.1,
* nL=20, filename="Output.L", Lmin=0.1, Lmax=1)
*
* %Parameters
* INPUT PARAMETERS:
*
* xwidth: [m] Width of detector.
* yheight: [m] Height of detector.
* Lmin: [AA] Minimum wavelength to detect.
* Lmax: [AA] Maximum wavelength to detect.
* nL: [m] Number of wavelength channels.
* filename: [str] Name of file in which to store the detector image.
* restore_xray: [ ]If set, the monitor does not influence the x-ray state.
*
* CALCULATED PARAMETERS:
*
* L_N: Array of x-ray counts
* L_p: Array of x-ray weight counts
* L_p2: Array of second moments
*
* %End
*******************************************************************************/
DEFINE COMPONENT L_monitor
SETTING PARAMETERS (int nL=20, string filename=0,
xwidth=0.1, yheight=0.1, Lmin, Lmax, restore_xray=0)
DECLARE
%{
DArray1d L_N;
DArray1d L_p;
DArray1d L_p2;
double xmin;
double xmax;
double ymin;
double ymax;
%}
INITIALIZE
%{
int i;
xmax = xwidth/2; xmin = -xmax;
ymax = yheight/2; ymin = -ymax;
if ((xmin >= xmax) || (ymin >= ymax)) {
printf("L_monitor (%s): Null detection area !\n"
"ERROR (xwidth,yheight,xmin,xmax,ymin,ymax). Exiting",
NAME_CURRENT_COMP);
exit(0);
}
L_N = create_darr1d(nL);
L_p = create_darr1d(nL);
L_p2 = create_darr1d(nL);
// Use instance name for monitor output if no input was given
if (!strcmp(filename,"\0")) sprintf(filename,"%s",NAME_CURRENT_COMP);
%}
TRACE
%{
int i;
double L;
PROP_Z0;
if (x>xmin && x<xmax && y>ymin && y<ymax)
{
L = 2*PI/sqrt(kx*kx + ky*ky + kz*kz);
i = floor((L-Lmin)*nL/(Lmax-Lmin));
if(i >= 0 && i < nL)
{
#pragma acc atomic
L_N[i] = L_N[i] + 1;
#pragma acc atomic
L_p[i] = L_p[i] + p;
#pragma acc atomic
L_p2[i] = L_p2[i] + p*p;
SCATTER;
}
}
if (restore_xray) {
RESTORE_XRAY(INDEX_CURRENT_COMP, x, y, z, kx, ky, kz, phi, t, Ex, Ey, Ez, p);
}
%}
SAVE
%{
DETECTOR_OUT_1D(
"Wavelength monitor",
"Wavelength [AA]",
"Intensity",
"L", Lmin, Lmax, nL,
&L_N[0],&L_p[0],&L_p2[0],
filename);
%}
MCDISPLAY
%{
multiline(5, (double)xmin, (double)ymin, 0.0,
(double)xmax, (double)ymin, 0.0,
(double)xmax, (double)ymax, 0.0,
(double)xmin, (double)ymax, 0.0,
(double)xmin, (double)ymin, 0.0);
%}
END
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