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Medical probes utilising CdTe detectors have been developed and their potential for uptake (or tracer) measurements and dosimetry has been evaluated. It is found that they are suitable for uptake measurements involving both beta and gamma emitting radiopharmaceuticals. Under carefully defined operating conditions CdTe probes can give an approximately tissue equivalent response, and so the same probe can be used for dosimetry and uptake measurements. Further work is necessary to fully establish the potential and characteristics of these devices.