Physics Of Radiography

Question 1

What is the wavelength?

Answer 1

the distance between two peaks and trofts

Question 2

What is the frequency?

Answer 2

the quantity of peaks and trofts within a period of time

Question 3

What is the Bohr Model?

Answer 3

a visual model of the anatomy of an atom

Question 4

Define: protons

Answer 4

positively charged particles

Question 5

Define: neutrons

Answer 5

particles with no electrical charge

Question 6

True or False: An ion is an atom with a negative charge.

Answer 6

False! an ion is an atom with an ELECTRICAL charge

Question 7

X-Ray Quanta = ………….

Answer 7

Small packets of energy

Question 8

Name the two types of electrodes found in the tube head.

Answer 8

• cathode (negative charge)
• anode (positive charge)

Question 9

List the 8 components of the tube head

Answer 9

• rotor
• electrons
• window
• tungsten target
• rotating anode
• filament (cathode)
• focusing cup
• glass tube

Question 10

What is the mA (milliamperes)

Answer 10

number of electrons produced at the cathode

Question 11

The higher the mA, the …………… the film.

Answer 11

blacker (overexposed)

Question 12

The lower the mA, the…………….. the film.

Answer 12

lighter (underexposed)

Question 13

What are some affecting factors of the exposure?

Answer 13

• tissue thickness
• density
• atomic number