|DCS# 7D10.10||NWU#A-8,10,19||Location: 10 A 2|
|title: Radiation alpha, beta, gamma; Thorium Coleman Mantle;|
aka: Geiger counter & samples
A Geiger counter set on "beep" is used to show the radiation from:
A. Comercial sources
B. Thorium lamp mantles
C. Fiesta-ware cup.
A box of shielding material helps differentiate the alpha, beta, and gamma radiation penetration.
Where does the background radiation in the room come from?