Thanks probeman,
So to be sure I actually should map our REEPO4 standards for Pb and for Mo (at least LREE standards), as I see in your investigation the Pb can be distributed uneven, and so I could had missed it.
I have not seen any information which might help to clarify the point of "beam unstable" in the original post.
I also want to complain about pentaphosphates as ours are also beam-unstable. Is it not enough we are stating our observations, should we send the beam-made crater images?
The cost of a similar sized batch of RP5O14 is about $500 and takes 24 hours. It is important to use conditions that yield ONLY the high temperature form This has never been published in 50 years of effort by military laser research. The optimum process was something that I developed and is "proprietary information".
So there is different sources of REEP5O14made with different techniques, and there is some secret sauce to make them stable? crystalgrower, are you selling these "proprietary" made REEP5O14 ?