Sensitivity Date of Tungsten Articulatable Hand-Held Probe

The sensitivity of probe depends on the used tungsten collimator. The basic sensitivity is determined by the standard collimator (40°). The sensitivity is shown in the figure - it's depending on the distance between lymph-node and probe tip. Tungsten articulatable hand-held probe’s sensitivity > 20,000 counts/s/MBq.

By increasing the dihedral angle the tungsten articulatable hand-held probe’s sensitivity increases significantly, while the spatial resolution gets worse.

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