X-Ray Production

Question 1

What year was x-ray equipment used in a hospital setting and by who?

Answer 1

1896, Emil Herman Grubbe

Question 2

The exponent for high voltage

Answer 2

Ua

Question 3

Properties of the Cathode

Answer 3

Negative Charge
Directs Electrons (accelerates the electrons across the tube)
source of electrons
focused beam
(Filament- current determines number of electrons)

Question 4

Properties of the focusing cup

Answer 4

Repels Electrons

Focuses to a small beam

Question 5

Properties of Anode

heat sink

Answer 5

Electrons strike the target- creates heat and x-rays
Water and Oil carries away excessive heat
X-rays exit the x-ray tube in all directions (isotropically)
Positive side

Question 6

What are the components of a voltage generator

Answer 6

Filament transformer
HV transformer
Rectifier

Question 7

What is the power source for the x-ray tube

Answer 7

Voltage Generator

Question 8

What does the Diode prevent?

Answer 8

Restrict electron flow to one direction and prevents reverse current

Question 9

Lower energies preferentially absorbed
Decrease #’s of x-rays
No change in potential

Answer 9

Properties of Filtration

Question 10

Properties of added filtration

Answer 10

low Z material
removes non-useful x-rays
increasing avg. energy

Question 11

What are the types of filtration

Answer 11

Inherent- x- ray tube

Added- eliminate low E x-rays