PICKER NUCLEAR Compact Ratemeter

Circa Mid 1960's to Mid 1970's (ESTIMATED)

A piece of analog nuclear instrumentation used to measure radiation levels.

Use Case:

This device functions as a count rate meter, designed to measure and display the rate of incoming electrical pulses from an external radiation detector (such as a Geiger-Muller tube or scintillator probe).

• It converts these pulses into a direct current (DC) voltage, which is then displayed as "counts per minute" on the analog meter face.

• The range selector switch (from 300 to 100K CPM) allows the user to monitor different levels of radiation, while the time constant switch adjusts the response time of the meter, providing either short, instantaneous readings or a long, more stable average.

• It was typically used in laboratories for applications in nuclear medicine or health physics for general contamination surveys.

Historical Significance:

The PICKER Compact Ratemeter is historically significant as part of the instrumentation that enabled the early, widespread use of nuclear medicine. 

• PICKER X-RAY CORPORATION, founded in 1915, established a dedicated Nuclear Division to meet the growing demand for tools to handle radioactive isotopes.

• This transition from large, complex lab equipment to smaller, more robust "compact" benchtop units like this ratemeter made nuclear diagnostic techniques more accessible to hospitals and research labs, helping to standardize radiation monitoring procedures in the mid-20th century. 

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