Chapter 24, Problem 85A

Interpretation Introduction

Interpretation:

A plan to use a Geiger counter, paper, and foil needs to be designed to determine the identity of each source.

Concept introduction:

Geiger counter is an ionizing radiation detection device.

Radiation energetic enough to ionize matter with which it collides iscalled ionizing radiation.

Answer to Problem 85A

Explanation of Solution

The radioactive particles falls on $\text{α}\text{particles,}\text{β}\text{particles}\text{and}\text{γ}\text{particles}$ and these particles enter in a thin ionized glass tube and these particles gets ionized. Some particles gets positive ions and some negative ions.

In the experiment, the glass tubes are coated by copper layer and a thin pipe like structure is connected with the tube called tungsten. The copper layer is connected to the negative part of a battery and the tungsten is connected to the positive part of the battery. And fills the tube with 90% argon and 10% ethyl alcohol.

Conclusion

Current cannot be found by the experiment.