New component: Source_Maxwell_3

[Kim Lefmann]

Dear McStas users,

We have added a new component, which is a source described by the sum of 3
Maxwellian distributions. Source_Maxwell_3 . Flux parameters for the SINQ
cold source is given as example. 

Cheers,
          Kim

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Kim Lefmann
Senior Scientist
Dept. Cond. Matt. Phys. & Chem.
Risoe National Laboratory

Phone: +45 46 77 47 26
Fax:   +45 46 77 47 90