Virtual experiments for teaching and training

daughterduckUrban and Civil

Nov 15, 2013 (3 years and 9 months ago)

74 views

Virtual experiments

for teaching and training

Kim Lefmann

MCNSI, ILL, 26/5
-
05

New university neutron course


University of Copenhagen, 4
th

year physics


10 hours per week, 8 weeks


Lecturers: Kim Lefmann, Peter Willendrup,

Bente Lebech, Kell Mortensen


4 reports, no exam



Theory (Squires) and simple calculation problems


Data analysis (Fullprof, Mfit, “SANS”)


Instrument simulations (DMC, “RITA
-
2”, SANS
-
2)


Plus 6 full days experiments at PSI (same instruments)

Course plan


1: Intro (neutrons + McStas), materials, Squires ch. 1


2
-
3: Scattering theory, (powder) diffraction, FULLPROF,
DMC Project (crystal structure), Squires ch. 2
-
3 (elastic)


4
-
5
: Inelastic scattering, phonons, MFIT, RITA
-
2 project
(phonons), Squires ch. 2
-
3 (inelastic)


6
-
7: SANS, “SANS
-
software”, SANS
-
2 project, Notes


8: Magnetic scattering, Squires ch. 7
-
8



“9”: PSI experiments, comparing with simulations

Project 1, DMC


PSI cold source


Straight guide


Flat monochromator


Collimator


Powder sample


Banana detector


(+ diagnostic
monitors)


Data analysis


Project 2, RITA
-
2


PSI cold source


Straight guide


Curved monochromator


Collimator


Vanadium / phonon sample


Single analyzer blade


Single detector


(+ diagnostic monitors)



Data analysis in MFIT

Project 3, SANS
-
2


PSI cold source


Straight guide


Velocity selector


Pinhole collimation


SANS sample


+ program own sample


PSD detector


(+ diagnostic monitors)



Data analysis in “SANS
software”

Conclusion


Students seem to like the approach


Good “hands
-
on” experience to instrumentation



Good test of the user interface!


Helps us focus to get virtual experiments tested!