Systems and techniques for generating, infusing, and controlling radioisotope delivery

An infusion system comprising:

• a frame that carries a beta detector, a gamma detector, and a controller communicatively coupled to the beta detector and the gamma detector,
• wherein the frame is further configured to receive a strontium-rubidium radioisotope generator that generates a radioactive eluate via elution,
• the beta detector is positioned to measure beta emissions emitted from the radioactive eluate,
• the gamma detector is positioned to measure gamma emissions emitted from the radioactive eluate, and
• the controller is configured to determine an activity of rubidium in the radioactive eluate based on the beta emissions measured by the beta detector and determine an activity of strontium in the radioactive eluate based on the gamma emissions measured by the gamma detector.