Consider the following description of an instrument used to detect radioactivity:
A tube contains argon at low pressure.A high electrical potential is established between a positively charged wire in the center and the negatively charged case.Radiation enters the window and ionizes the argon.The ions move toward the electrodes,producing a measurable electrical pulse and an audible "click." What is the name of this instrument?

Question

Quizplus · Accepted Answer

The instrument described is a Geiger counter, which uses the ionization of a gas (in this case, argon) to detect radiation. The electrical pulse and audible click produced are characteristic of the Geiger-Muller tube used in the counter. A gamma camera and scanner, scintillation counter, cloud chamber, and spectrophotometer are all different types of instruments used in radiation detection or analysis, but do not fit the described characteristics of the Geiger counter.

Consider the Following Description of an Instrument Used to Detect