From:   SMTP%"Fraser.Rowan@awe.co.uk" 12-MAR-2002 18:04:54.96
To:     cockcroft@gordon.cryst.bbk.ac.uk
CC:
Subj:   Regarding a new phase

Jeremy,
        I was hoping that you could help me out. All of the examples that I
have read through concerning indexing, refinements, etc. from the course
assume a primary understanding of the crystal structure which is to be
investigated. (Unless I have mis-read the course notes.)
I have recently identified a new phase of Pu (only obtainable under specific
conditions). As it is a new phase, I have no knowledge of the structure
other than d-spacings and intensities. I know the information  I want to
obtain, i.e. symmetry, hkl's, lattice parameters etc. however, it does not
seem obvious to me how I can obtain any of these without prior knowledge of
at least one of these parameters.
Can you suggest any literature or briefly explain how I can go about
'getting a foot in the door' with regards to this problem.
I do hope that this is not too stupid a question.

Best regards,
                Fraser Rowan


___________________________________________________

Dr. Fraser Rowan
Atomic Weapons Establishment
Building A90, Room G37,
Aldermaston,
Berkshire.
RG7 4PR
Tel:   01189824858
Fax:  01189825970
___________________________________________________

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