Consider the Following Description of an Instrument Used to Detect

question 19

Multiple Choice

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?

• A)Gamma camera and scanner
• B)Scintillation counter
• C)Geiger counter
• D)Cloud chamber
• E)Spectrophotometer

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