McStas About McStas  Conditions of use  Authors/Contacts  Project funding  Screenshots Download  Components  Share Mailing list Search web/mailinglist Documentation  McStas manual  FAQ  Known problems  Publications  C Compilers  Other  Tutorial Workshops/conferences Developments  Platforms Links Report bugs SVN McStas Ubuntu live-dvd	Exercise: Source and PSD Start by inserting a template instrument (Insert menu). Set up an instrument, consisting only of an Arm (keep the example 'a1' Arm instance), a Source_Maxwell_3, a PSD_monitor and an L_monitor. Read the documentation for each of the components to find the needed input parameters. For the source we will help you out, try COMPONENT source = Source_Maxwell_3( size = 0.1, l_low = 0.1, l_high = 10, dist = 10, xw = 0.01, yh = 0.01, T1 = 300, T2=300, T3=300, I1=1e14, I2=0, I3=0) Read the Source_Maxwell_3 docs using mcdoc to understand the suggested parameters. The file names for monitors, specified as character strings, should be given surrounded by double quotes ("file.dat"). Run a simulation and plot the results, looking at an image of the source plus the wavelength distribution of the source. Narrow down the interval of wavelengths emitted from the source to e.g. l_low=0.999 and l_high=1.001. Rerun your simulation to check the effect. Reset the wavelength interval to [0.1 10] Å. Printable version Last Modified: Tuesday, 22-Jun-2004 14:04:14 CEST