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ucph>Tommy: Created page with "Investigate the energy resolution of your spectrometer by performing a scan of the energy transfer. Vary \(E_{\rm i}\) by moving TTM/OMM, keeping all other angles constant. Us..."

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Created page with "Investigate the energy resolution of your spectrometer by performing a scan of the energy transfer. Vary \(E_{\rm i}\) by moving TTM/OMM, keeping all other angles constant. Us..."

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Investigate the energy resolution of your spectrometer by performing a scan of the energy transfer. Vary \(E_{\rm i}\) by moving TTM/OMM, keeping all other angles constant. Use 5.0 meV for \(E_{\rm f}\) and a non-zero value for TT. Plot the simulated intensity (''e.g.'' E-monitor with only one channel) as a function of \(\hbar\omega\) and find the energy resolution (FWHM of the peak) using MatLab.

Where would you place the Be filter in such an experiment?

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Remember to stretch the lambda interval in the source to allow for the change in \(E_{\rm i}\). If it is a help, you can safely assume that the optimal curvature does not change significantly over the scan. Multiple McStas simulations can be run from the command line by typing a series of <tt>mcrun</tt> commands into a file and the excecuting the file by the command <tt>source ./<filename></tt>. The syntax for the McStas command line <tt>mcrun</tt> is given in the manual.
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Simulation Project tripleaxis: Energy resolution - Revision history

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ucph>Tommy: Created page with "Investigate the energy resolution of your spectrometer by performing a scan of the energy transfer. Vary \(E_{\rm i}\) by moving TTM/OMM, keeping all other angles constant. Us..."