The electrons in a television tube are accelerated through a

The electrons in a television tube are accelerated through a potential of about 10,000V. Evaluate the danger to those watching due to the brehmstrahlung radiation produced when these electrons strike the screen and produce the image.

Solution

The energy of the electrons accelerated under the potential is

10000 ev

= 10 kev x-rays,

Brehmstralung radiation is emitted when when the elctrons loose energy by deceleration .

Most of the electrons energy is used in creating the picture on the screen, which is in visible range. The brehmstrahlung radiation is in general of low intensity.

When the TV screen is viewed from a safe distance like 2 to 3 meters it is safe and there is not any significant harm to the human body. it is in the range of natural background radiation.