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/*******************************************************************************
*
* McXtrace, x-ray tracing package
* Copyright, All rights reserved
* DTU Physics, Kgs. Lyngby, Denmark
* Synchrotron SOLEIL, Saint-Aubin, France
*
* Component: PSD_monitor
*
* %Identification
* Written by: Erik B Knudsen
* Date: June 22, 2009
* Origin: Risoe
*
* Position-sensitive monitor.
*
* %Description
* Based on neutron component written by Kim Lefmann
* An (nx times ny) pixel PSD monitor. This component may also be used as a beam
* detector. If instead of xwidth, yheight a radius is given, the component has a circular footprint
* and integrates circularly (caking).
*
* Example: PSD_monitor(xwidth=0.1, yheight=0.1,
* nx=90, ny=90, filename="Output.psd")
*
* %Parameters
* INPUT PARAMETERS:
*
* xwidth: [m] Width of detector.
* yheight: [m] Height of detector.
* radius: [m] Radius of circular detetor.
* nx: [1] Number of pixel columns.
* ny: [1] Number of pixel rows.
* nr: [1] Number of radial pixels.
* filename: [str] Name of file in which to store the detector image.
* restore_xray: [1] If set, the monitor does not influence the xray state.
* nowritefile: [1] If set, monitor will skip writing to disk
*
* %End
*******************************************************************************/
DEFINE COMPONENT PSD_monitor
SETTING PARAMETERS (string filename=0, xwidth=0.05, yheight=0.05, radius=0, restore_xray=1,
int nowritefile=0, int nx=90, int ny=90, int nr=0)
/* X-ray parameters: (x,y,z,kx,ky,kz,phi,t,Ex,Ey,Ez,p) */
DECLARE
%{
DArray2d PSD_N;
DArray2d PSD_p;
DArray2d PSD_p2;
double xmin;
double xmax;
double ymin;
double ymax;
%}
INITIALIZE
%{
int i,j;
double *p1,*p2,*p3;
xmax = xwidth/2; xmin = -xmax;
ymax = yheight/2; ymin = -ymax;
if ( ((xmin >= xmax) || (ymin >= ymax)) && !radius ) {
fprintf(stderr,"ERROR (%s): Null detection area! Aborting.\n",NAME_CURRENT_COMP);
exit(-1);
}
if(!radius){
PSD_N = create_darr2d(nx, ny);
PSD_p = create_darr2d(nx, ny);
PSD_p2 = create_darr2d(nx, ny);
}else{
PSD_N = create_darr2d(1, nr);
PSD_p = create_darr2d(1, nr);
PSD_p2 = create_darr2d(1, nr);
}
// Use instance name for monitor output if no input was given
if (!strcmp(filename,"\0")) sprintf(filename,"%s",NAME_CURRENT_COMP);
%}
TRACE
%{
int i,j,k;
double e,p2;
PROP_Z0;
if (!radius){
if (x>xmin && x<xmax && y>ymin && y<ymax)
{
i = floor((x - xmin)*nx/(xmax - xmin));
j = floor((y - ymin)*ny/(ymax - ymin));
p2=p*p;
#pragma acc atomic
PSD_N[i][j] += 1;
#pragma acc atomic
PSD_p[i][j] += p;
#pragma acc atomic
PSD_p2[i][j] += p2;
SCATTER;
}
}else{
double r=sqrt(x*x+y*y);
if (r<radius){
i = floor(r*nr/radius);
p2=p*p;
#pragma acc atomic
PSD_N[0][i] += 1;
#pragma acc atomic
PSD_p[0][i] += p;
#pragma acc atomic
PSD_p2[0][i] += p2;
SCATTER;
}
}
if (restore_xray) {
RESTORE_XRAY(INDEX_CURRENT_COMP, x, y, z, kx, ky, kz, phi, t, Ex, Ey, Ez, p);
}
%}
SAVE
%{
if(!nowritefile){
if(!radius){
if(nx==1 && ny==1){
char title[256];
snprintf(title,255,"Intensity monitor %s",NAME_CURRENT_COMP);
DETECTOR_OUT_0D(title, (double) PSD_N[0][0], PSD_p[0][0], PSD_p2[0][0]);
}else if(nx==1){
DETECTOR_OUT_1D(
"PSD_monitor","Y Position[m]", "Intensity", "Y",
ymin,ymax,ny,&PSD_N[0][0],&PSD_p[0][0],&PSD_p2[0][0],filename);
}else if (ny==1){
DETECTOR_OUT_1D(
"PSD_monitor","X Position[m]", "Intensity", "X",
xmin,xmax,nx,&PSD_N[0][0],&PSD_p[0][0],&PSD_p2[0][0],filename);
}else{
DETECTOR_OUT_2D(
"PSD monitor",
"X position [m]",
"Y position [m]",
xmin, xmax, ymin, ymax,
nx, ny,
*PSD_N,*PSD_p,*PSD_p2,
filename);
}
}else{
DETECTOR_OUT_1D(
"PSD_monitor","Radial Position[m]", "Intensity", "R",
0,radius,nr,&PSD_N[0][0],&PSD_p[0][0],&PSD_p2[0][0],filename);
}
}
%}
FINALLY
%{
destroy_darr2d(PSD_N);
destroy_darr2d(PSD_p);
destroy_darr2d(PSD_p2);
%}
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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