1.  Technical Specifications of the System
2.  Use of optically stimulated luminescence (OSL) crystals
3.  Capable of sensitive measuring in the 16 keV – 6-25 MV Linac energy range of all photons
4.  Ability to measure in the dose range of 0.1 mGy – 10 Gy
5.  Tissue equivalent BeO crystal (effective atomic number Z=7.11)
6.  Re-erasing and using the dosimeter several times
7.  Dosimeter reading time ≤ 20 seconds
8.  Sterilization suitable for in-vivo use
9.  Ability to make corrections based on energy and depth parameters
10.  Ability to automatically perform daily quality control tests (QC)