CHAPTER 1

Question 1

when did Dr. Roentgen discover x-rays?

Answer 1

On November 8,1895

Question 2

How many days did Dr. Roentgen spend investigating x-rays?

Answer 2

7 weeks

Question 3

what anatomic part was first photographed?

Answer 3

Dr. Roentgen’s wife’s hand

Question 4

what were the dangers of overexposure to radiation?

Answer 4

Severe radiation burns, cancer and even death

Question 5

who made it known of the dangers due to radiation exposure?

Answer 5

Thomas Edison and his assistant Clarence Dally

Question 6

what are the properties of x-rays?

Answer 6

• are invisible
• travel at the speed of light in a vacuum
• travel in straight lines
• have a short wavelength
• unaffected by electric and magnetic fields
• causes ionization
• cannot be focused by a lens

Question 7

fundamental quantities

Answer 7

Mass, Length and time

Question 8

Derived Quantities

Answer 8

Velocity, acceleration, force, momentum, work and power

Question 9

Special radiologic qualities

Answer 9

dose equivalent, exposure and radioactivity are derived

Question 10

SI means?

Answer 10

System International or metric system

Question 11

System International measures are?

Answer 11

Kilogram, meter, and second

Question 12

British system measurements

Answer 12

pound, foot, and second

Question 13

Inertia is…?

Answer 13

the property of an object with mass that resists a change in its state of motion

Question 14

Energy is …?

Answer 14

the ability to do work and has two states

Question 15

what are the two states of energy

Answer 15

Potential and Kinetic

Question 16

potential energy is …?

Answer 16

energy in a stored state

Question 17

Kinetic energy is …?

Answer 17

energy being expended

Question 18

what are the standard units?

Answer 18

• Roentgen (R)
• rad
• rem
• Curie (Ci)

Question 19

what is Roentgen is used for?

Answer 19

to quantify radiation intensity

Question 20

what is rad used for?

Answer 20

to quantify the biological effect of radiation on humans and animals

Question 21

what is rem used for?

Answer 21

to quantify occupational exposure or dose equivalent

Question 22

what is curie used for?

Answer 22

to quantify radioactivity

Question 23

what are the basic configurations of the tube stand?

Answer 23

• floor mount
• floor/ceiling (or floor/wall) mount
• overhead tube assembly

Question 24

what does the wall unit allow to do?

Answer 24

easily obtain upright examination

Question 25

what is the control panel used for?

Answer 25

to select the kilovoltage and milliamperage applied to produce x-rays. Also, to fine-tune or modify exposure perimeters

Question 26

what is 3.7x10^10 ?

Answer 26

Curie

Question 27

what is 2.08x10^9 ?

Answer 27

Roentgen

Question 28

what is the tube head assembly?

Answer 28

Housing, X-ray tube, and collimator