McStas logo McStas - A neutron ray-trace simulation package ILL; PSI; ESS Niels Bohr Institute DTU Physics NEXMAP


About McStas
 Conditions of use
 Project funding

 Linux Install (deb/rpm)
 Mac OS X Install
 Unix Install (src code)
 Windows Install
 Other Downloads (share)

Mailing list

Search web/mailinglist

 McStas manual
 Known problems
 C Compilers




Report bugs


McStas Ubuntu live-dvd

Exercise: Insert a real sample next up previous
Next: Exercise: Insert an analyzer Up: Exercises Previous: Exercise: Insert a sample

Exercise: Insert a real sample

  1. Instead of mylist.dat use Na2Ca3Al2F14.laz. Change the limits of the banana detector to [-10 -130] and change the sample component to read:
    COMPONENT sample = PowderN(
        reflections = "Na2Ca3Al2F14.laz", d_phi = 0.1, radius = 0.004,
        h = 0.03, DW = 0.9, barns = 1, pack = 0.7, frac = 0, tfrac=0)
      AT (0, 0, 2) RELATIVE arm2

    Make a simulation to check that a nice powder pattern is observed. If it is time for a coffee break, close the plot from the quick run and instead do a long simulation, e.g. 20 million neutron rays, and have coffee.

Peter Kjær Willendrup 2015-11-12

Last Modified: Thursday, 12-Nov-2015 11:53:11 CET
Search website mailinglist archive GitHub repos