SPI YAG Scintillators
Information about structure of yttrium aluminum perovskite
We are often times asked to comment about just what is the structure of
the YAP material.
Regular perovskite is CaTiO3 - a large
divalent cation Ca and a small tetravalent cation Ti making a total
of 6 valencies. The perovskite structure is very accommodating to all
sorts of chemical elements, providing they are of the right relative
sizes, and Y - yttrium is large trivalent, and Al is small trivalent,
so these two elements fit into the same structure quite happily, hence
the formula YAlO3.
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Friday July 04, 2008
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