Come on guys!.

[Ross Stewart]

Dear McStas developers,

This situation is getting out of hand.

McStas is an extremely important contribution in Monte-Carlo instrument 
simulation.  But it is not a football to be kicked around in some kind of 
bizarre Franco-Danish soccer match.

Unlike ALL other available packages (mclib, vitess etc.) McStas offers the 
ability to write instrumental components quickly and easily.  It is thus 
indispensable for "non-standard" neutron instruments (such as my 
instrument, D7 at the ILL).  Furthermore there is considerable effort and 
money being spent on instrument upgrades here at the ILL, and elsewhere, 
which depend on McStas giving reliable results (as it has - up till now - 
seemed to do).   It is therefore extremely important that McStas users can 
depend on their simulations.

We have been using McStas for the last year or so to model the design of 
our new supermirror polarisers and analysers on D7, and we are getting very 
near the stage where final design decisions will have to be taken.  I have 
to say that in the current climate - and following the unfortunate bouncing 
emails - I am very unwilling to base the final design on our McStas 
simulations.  This is a great shame - as we have worked quite hard on these 
simulations.

In conclusion:  please try and sort these problems out.  And bear in mind 
that more is riding on your efforts than just personal pride.

Yours with best wishes

Ross Stewart


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