PICKER Nuclear Compact Ratemeter

Circa Mid 1960's to Late 1960's

A vintage laboratory instrument designed to measure the rate of ionizing radiation by counting electrical pulses from a detector.

Use Case:

Primarily used in educational and research laboratories for nuclear physics experiments, as well as in medical or industrial settings.

While it displays radiation levels on its analog meter, it lacks the internal sensor required to "see" radiation. To function, it must be connected to a separate detector, such as a Geiger-Müller (GM) tube or a Sodium Iodide (NaI) scintillation probe. This probe physically interacts with ionizing radiation and sends electrical pulses to the ratemeter.

Historical Significance:

Manufactured by the PICKER CORPORATION (a leader in X-ray and nuclear imaging), this device was part of a major shift toward transistorized(solid-state) laboratory equipment. These units replaced bulky vacuum-tube models, providing a more reliable and portable solution for radiation safety and research during the Cold War era.

In the 1960s, this "modular" design was standard for laboratories. It allowed scientists to swap different specialized probes—for example, using one probe for detecting Alpha particles and a different one for Gamma rays—while using the same ratemeter to read the results.

(H-17.5cm x W-16cm x D-18cm)