Ends and sides
www.burle.com/photom.htm
Designed for gamma-ray counting, oil-well logging, spectroscopy, medical imaging, and x-ray digitizing, the photomultipliers from Burle Industries (Lancaster, PA) cover the spectral range from 185 to 930 nm. The product line includes end-window transmission and reflection-mode types and side-window reflection-mode types from 19 to 127 mm in round, square, rectangular, and hexagonal bulb configurations. On this site, you`ll find descriptions of the company`s products and on-line datasheets in pdf format.