Which of the following gases are used in proportional counter as the ionising gas?
A. Alcohol
B. Argon gas
C. Krypton
D. Hydrogen
Answer:C
Which of the following gases are used in proportional counter as the ionising gas?
A. Alcohol B. Argon gas C. Krypton D. Hydrogen
Explanation: Proportional counter is filled with krypton. It acts as ionising gas. Xenon can also be used.