Xray Production

Question 1

Electrons have

Answer 1

Same mass

Question 2

Electron KE is increased by

Answer 2

Raising kVp

Question 3

Increased electron KE will result to

Answer 3

Increased in both the intensity and energy of the X-ray beam

Question 4

Distance bet the filament and X-ray tube target

Answer 4

Approx. 1cm

Question 5

Accelerating force needs to raise the velocity of electrons from

Answer 5

Zero to half the speed of light in a short distance

Question 6

Electrons travelling from cathode to anode

Answer 6

Projectile electrons

Question 7

When projectile electrons travels

Answer 7

Hit the target

Transfer their kinetic energy to the target atoms

Question 8

Most kinetic energy of projectile electrons is

Answer 8

Converted into heat

Question 9

Interact with the outer-shell electrons but do not transfer sufficient energy

Answer 9

Projectile electrons

Question 10

Responsible for most of the heat generated in the X-ray tube

Answer 10

Constant excitation

Return of outer-shell electrons

Question 11

Approx. 99% of KE of projectile electrons is

Answer 11

Converted into heat

Question 12

Tube current and anode heat is

Answer 12

Directly proportional

Question 13

Efficiency of X-ray production increases

Answer 13

Increasing kVp

Question 14

Emitted when an outer-shell electron fills an inner shell void

Answer 14

Characteristic radiation

Question 15

Result when the interaction is sufficiently violent to ionize the target atom through removal of inner shell electron

Answer 15

Characteristic radiation

Question 16

Ejection if an inner shell electron resulted to

Answer 16

Void in the k-shell

Question 17

Only shell that is useful in imaging

Answer 17

K-characteristic X-rays of tungsten

Question 18

LMNO shell

Answer 18

Less energy due to lower binding energy

Question 19

Type of x-radiation is called characteristic because it is

Answer 19

Characteristics of the target element

Question 20

Higher the atomic number of the target

Answer 20

Higher the energy of characteristic X-ray

Question 21

Bremsstrahlung is also known as

Answer 21

General
White radiation
Polychromatic
Continuous

Question 22

Electromagnetic radiation generated when

Answer 22

Negatively charged electrons in motion are deflected by positively charged atomic nuclei

Question 23

Interaction bet projectile electron and the nuclear force field of a target atom

Answer 23

Bremsstrahlung radiation

Question 24

Attraction bet projectile electron that may come close the nucleus

Answer 24

Electrostatic force of attraction

Question 25

Loss of kinetic energy reappears as an X-ray

Answer 25

Bremsstrahlung X-rays

Question 26

Bremsstrahlung is a German word that means

Answer 26

“Slowed down radiation” “braking radiation”

Question 27

Bremsstrahlung refers to the

Answer 27

Deceleration of electrons as the cause of radiation

Question 28

Low energy bremsstrahlung results when

Answer 28

The projectile electron is barely influenced by the nucleus

Question 29

High energy X-rays occurs when

Answer 29

The projectile electrons loses all its kinetic energy and simply drifts away from the nucleus

Question 30

Greater the change in direction

Answer 30

the more energy loss of energy,

Higher energy photon

Question 31

At 100 kVp,

Answer 31

Approx 15% of the X-ray bean is characteristic

Remaining is bremsstrahlung

Question 32

Energy of motion

Answer 32

Kinetic energy