Properties of collimators

[Martin Meven]

Dear Kristian Nielsen,

thank you very much for your information. I will do the calculations as
soon as possible.

Sincerely yours

Martin Meven

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Dipl.-Phys. Martin Meven 
Institute for Crystallography      email: meven at xtal.rwth-aachen.de
RWTH Aachen                        Phone: +49 241 806908
Jägerstr. 17-19                    Fax  : +49 241 8888 184
D-52056 Aachen,Germany