This is a very useful site! Thank you for putting it together.
I have a question regarding the refractive index of the scintillator BGO. It is usually quoted at around 2.15 at the emission maximum (480nm)
Yet, it is listed here at 2.57 in 588 nm which, given the Abbe number is, increases to 2.67 at 480 nm. Also, Here is a peer-reviewed publication which lists the index at 2.15
http://www.hep.caltech.edu/~zhu/papers/ ... rystal.pdf