McStas v1.01 BETA 1

[Kristian Nielsen]

> DO you happen to have an instrument file that contains a lot of neutron 
> guides? (We have this specific problem of redesigning the guide system 
> and, unfortunately, I couldn't find any example that would be good as a 
> start for that.)

Kim Lefmann is currently setting up a simulation of the front-end of the
RITA spectrometer at Risoe. This has five or six guide sections. I have
put it on our Web server; you may download it from

http://elu-alf-2.risoe.dk/~elu-krni/mcstas/support/misc/RITA_frontend.instr

If you want to run this simulation, you also need a couple of new
components:

http://elu-alf-2.risoe.dk/~elu-krni/mcstas/support/misc/Divergence_monitor.comp
http://elu-alf-2.risoe.dk/~elu-krni/mcstas/support/misc/V_selector.comp

You could also try asking on the mailing list
(neutron-mc at risoe.dk). Several people at other institutions have set up
McStas simulations with guides and might be willing to share their code.

 - Kristian.