A single HPGe detector with 105%
(relative) efficiency in anti-coincidence with an annular BGO
detector is used.
Shadow shielding partial body
counter with a big single HPGe (p-type) coaxial detector. The
is surrounded from an annular BGO
crystal (as an active anti-Compton shield) and a cylindrically local
Install the best available
technology and lowest lower limit of detection system if
currently used rooms are available only!