Exam 1 - 3. Radiation Physics

Question 1

4

Electricity is the _____.

Question 2

4

Current is the amount of _______ and it is measured in _____.

Question 3

4

Circuit is the ______.

Question 4

4

Voltage is the ____.

Question 5

5

An impulse is when the current ______. An impulse is ___ cycles per second.

Question 6

5

X rays are produced only when current ______, not ____.

Question 7

5

With an impulse, you get _____ of x-rays per second. Each burst is called a ___ or ____.

Question 8

6

During each half cycle (____ of a second), the anode is ____ and _______. ____ is produced.

Question 9

6

During each alternate half-cycle (____ of a second), the anode is ____ and therefore ______ exists and ______. This is called ______.

Question 10

7

In full wace rectification, X-rays are produced _____.

Question 11

8

What are three ways to increase efficiency of X-ray production?

Question 12

9

What are four advantages of constant potential and direct current?

Question 13

10

X-rays are produced whenever ______.

Question 14

11

What are two mechanisms for x-ray formation?

Question 15

11

What is another name for Bremsstraahlung radiation?

Question 16

11

Bremsstrahlung radiation involves ______ interaction.

Question 17

11

In Bremsstrahlung radiation, the fast-moving electrons either _____ or _____ when they come close to the _____ and part of their energy is ________.

Question 18

11

What is the primary source of X-rays?

Question 19

11

Characteristic radiation involves _____ interaction.

Question 20

11

In characteristic radiation, a few electrons interact with ______, imparting enough energy to _____.

Question 21

11

Characterisitic radiation is produced when _________.

Question 22

11

Characteristic radiation accounts for ____.

Question 23

12

Bremsstraglung radiation involves a ____ with the nucleus. Then, the impinging electron is ______ and ________ by the nucleus. Kinetic energy lost is emitted as ______. There is a head-on collision with the nucleus, where electrons are _____, producing a ______.

Question 24

13

In Bremsstrahlung radiation, ______ electrons are directed toward the target material.

Question 25

13

In Bremsstrahlung radiation, all electrons do not _____. Some move at _____, depending on ____.

Question 26

13

What is the formula for kinetic energy?

Question 27

13

Bremsstrahlung radiation increases with _______ and _______.

Question 28

14

In Bremsstrahlung radation, the continuously varying voltage difference between the target and filament causes the electrons striking the target to have _______-.

Question 29

14

In Bremsstrahlung radiation, the bombarding electrons pass at _____ around the tungsten nuclei and are thus ______. As a result, they give up _______ in the form of _____.

Question 30

14

Most electrons participate in _____ bremsstrahlung interactions in the target before ______. Consequently, an electron carries ________ after successive interactions with tungsten nuclei.

Question 31

15

Characteristic radiation arises when the cathode electron _______ and ______. The atom is now ___ and _____. Immediately, the hole left by the electron is filled by ________, and energy is emitted from this electron in the form of x-radiation characteristic of ______ and the ______. The energy emitted by the electron is equivalent to the _________.

Question 32

16

____% of diagnostic x-ray beam is characteristic radiation.