G - Physics – 12 – B
Patent
G - Physics
12
B
G12B 13/00 (2006.01) G01T 1/167 (2006.01) G01T 7/00 (2006.01) G01T 7/02 (2006.01)
Patent
CA 2140447
A shielded dose calibration apparatus including one or more hand-held portable shield units (11) containing a vessel (12) with a radioactive sample in a shielded chamber and a calibration station (13) for calibrating the sample in the vessel without removing the vessel from the protections of the shielded chamber. The shield units (11) include on-board detectors (36) for measuring the radioactivity from the sample. The calibration station (13) may include a separate controller unit (16) and one or more base units (14). To calibrate a sample, the portable shield unit (11) is placed on a base unit (14), which senses the presence of the shield unit. The shield unit then communicates an identification signal and the data measured by the on-board detectors (36) to the controller unit (16) via the base unit (l4). Power may also be transmitted to the shield unit (11) via the base unit (14), avoiding the need for an on-board power source. In another embodiment the portable shield unit may be entirely pelf-contained, including an on-board power source (35), detectors, processing electronics, and readout mechanism (40).
Lane Stephen M.
Prussin Stanley G.
Spracklen Howard
Fetherstonhaugh & Co.
Sunol Technologies Inc.
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