Portable Device for Realization of Primary Radioactivity Standards

The ideal radionuclide for medical imaging decays away on the timescale of the procedure so that the patient does not receive unnecessary radiation dose waiting for the imaging agent to slowly decay or to clear biologically. So appealing in medicine, short-lived nuclides (with half-lives on the order of seconds to minutes) by nature present a measurement challenge. For quantitative imaging applications, measurement traceability to an activity standard is highly desirable. To establish such a standard requires fundamental measurem...