/******************************************************************************* * * McStas, neutron ray-tracing package * Copyright 1997-2002, All rights reserved * Risoe National Laboratory, Roskilde, Denmark * Institut Laue Langevin, Grenoble, France * * %I * Written by: Kim Lefmann * Date: May 7, 2001 * Origin: Risoe * * Rectangular 1D PSD, measuring intensity vs. position along an axis, * * %D * A 1-dimensional PSD measuring intensity along either the horizontal axis x (default) or * the vertical axis y. * * * Example: PSDlin_monitor(nbins=20, filename="Output.x", xmin=-0.1, xmax=0.1, ymin=-0.1, ymax=0.1) * * %P * INPUT PARAMETERS: * * xmin: [m] Lower x bound of detector opening. * xmax: [m] Upper x bound of detector opening. * ymin: [m] Lower y bound of detector opening. * ymax: [m] Upper y bound of detector opening. * xwidth: [m] Width of detector. Overrides xmin, xmax. * yheight: [m] Height of detector. Overrides ymin, ymax. * nbins: [1] Number of positional bins. * filename: [str] Name of file in which to store the detector image. * vertical: [1] Flag to indicate whether the monitor measures along the horiz. or vert. axis * restore_neutron: [1] If set, the monitor does not influence the neutron state. * nowritefile: [1] If set, monitor will skip writing to disk * * OUTPUT PARAMETERS: * * PSDlin_N: Array of neutron counts * PSDlin_p: Array of neutron weight counts * PSDlin_p2: Array of second moments * * %E ******************************************************************************/ DEFINE COMPONENT PSDlin_monitor DEFINITION PARAMETERS () SETTING PARAMETERS (int nbins=20, string filename=0, xmin=-0.05, xmax=0.05, ymin=-0.05, ymax=0.05, int nowritefile=0, xwidth=0, yheight=0, int restore_neutron=0, int vertical=0) OUTPUT PARAMETERS () /* Neutron parameters: (x,y,z,vx,vy,vz,t,sx,sy,sz,p) */ DECLARE %{ DArray1d PSDlin_N; DArray1d PSDlin_p; DArray1d PSDlin_p2; %} INITIALIZE %{ int i; if (xwidth > 0) { xmax = xwidth/2; xmin = -xmax; } if (yheight > 0) { ymax = yheight/2; ymin = -ymax; } if ((xmin >= xmax) || (ymin >= ymax)) { printf("PSDlin_monitor: %s: Null detection area !\n" "ERROR (xwidth,yheight,xmin,xmax,ymin,ymax). Exiting", NAME_CURRENT_COMP); exit(0); } PSDlin_N = create_darr1d(nbins); PSDlin_p = create_darr1d(nbins); PSDlin_p2 = create_darr1d(nbins); for (i=0; ixmin && xymin && y= nbins) || (i<0)) { printf("ERROR: (%s) wrong positioning in linear PSD. i= %i \n",NAME_CURRENT_COMP,i); exit(1); } double p2 = p*p; #pragma acc atomic PSDlin_N[i] = PSDlin_N[i] +1; #pragma acc atomic PSDlin_p[i] = PSDlin_p[i] + p; #pragma acc atomic PSDlin_p2[i] = PSDlin_p2[i] + p2; SCATTER; } if (restore_neutron) { RESTORE_NEUTRON(INDEX_CURRENT_COMP, x, y, z, vx, vy, vz, t, sx, sy, sz, p); } %} SAVE %{ if (!nowritefile) { if (!vertical){ DETECTOR_OUT_1D( "Linear PSD monitor","x-Position [m]","Intensity","x", xmin, xmax, nbins, &PSDlin_N[0],&PSDlin_p[0],&PSDlin_p2[0],filename); }else{ DETECTOR_OUT_1D( "Linear PSD monitor","y-Position [m]","Intensity","y", ymin, ymax, nbins, &PSDlin_N[0],&PSDlin_p[0],&PSDlin_p2[0],filename); } } %} FINALLY %{ destroy_darr1d(PSDlin_N); destroy_darr1d(PSDlin_p); destroy_darr1d(PSDlin_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