The effective atomic numbers of tissue and air are both about 7.5. Compared to a gram...

The effective atomic numbers of tissue and air are both about 7.5. Compared to a gram of tissue, about how many interactions would occur in a gram of aluminum exposed to a beam of low energy photons? to medium energy photons? to high energy photons

Solutions

Expert Solution

When exposed to low energy photons, the photon ionizes aluminium creating one fast moving electron and a low energy photon, this fast moving electron again interacts with aluminium hence a total of two interactions occur.

When exposed to a medium energy photons, it ionizes aluminium and gives one fast moving electron, one slow moving electron and a low energy photon. The fast moving electron results in another interactions, hence a total of three interactions occur.

When exposed to high energy electrons, it ionizes aluminium and gives two fast moving electrons and a positive ion. These two fast moving electrons results in two more interactions, hence a total of four interactions occur.

genius_generous answered 1 year ago

Next > < Previous

Related Solutions

What is the most effective way to reach both the users and IT department staff about...

What is the most effective way to reach both the users and IT department staff about how important security policies are?

Accounting systems generally produce information about numbers - certainly necessary for both decision-making and control. However,...

Accounting systems generally produce information about numbers - certainly necessary for both decision-making and control. However, other information is also needed in both decision-making and control. Discuss the non-quantitative information that could prove useful to management, indicating the types of decisions and/or control issues where it would prove helpful.

(a) How do you find the second derivative of a function? (b) If both are positive numbers, what does that tell you about the function itself?

(a) How do you find the second derivative of a function? (b) If both are positive numbers, what does that tell you about the function itself? (c) If we know that a function is increasing, but at a decreasing rate, what does that say about the first and second derivatives? (d) Come up with a function where the first and second derivatives are non-zero but the third derivative is zero.

Subjects