X-ray production and ionising radiation

Question 1

Tungsten chemical symbol?

Answer 1

W

Question 2

Ionising radiation

Answer 2

Radiation is capable of producing ions by removing an electron(s) from an atom

Question 3

What is radiation?

Answer 3

Emission and propagation of energy in the form of a wave or particles

Question 4

Can you turn radiation on and off?

Answer 4

Yes

Question 5

What odour are long wavelength?

Answer 5

Orange/red

Question 6

What colour are the short wavelengths?

Answer 6

Blue

Question 7

Does radiation travel in a. Straight line?

Answer 7

Yes

Question 8

Are x-rays ionising?

Answer 8

Yes

Question 9

Cathode

Answer 9

Negative

Question 10

Anode

Answer 10

Positive

Question 11

What way do electrons travel in x-ray tube?

Answer 11

Cathode to anode

Question 12

On the anode, what ion is here?

Answer 12

Tungesten

Question 13

What moves the electron from anode to cathode?

Answer 13

Potential difference

At very high speed

Question 14

Heat s generated, where does the heat go?

Answer 14

Dissipated by copper bar and surrounding oil

Question 15

How much of the energy is x-ray?

Answer 15

1%

Question 16

Where can the incoming electron hit the tungesten atom?

Answer 16

Deselect or collide

Question 17

Typical periapical exposure?

Answer 17

70kV
7mA
0.125 seconds

Question 18

Do you get characteristic radiation at 70kV?

Answer 18

No

Question 19

Factors affecting intensity/quality of beam?

Answer 19

Tube voltage kV
Tube current mA
Distance from target d
Time of exposure ms
Filtration
Target material
Tube voltage waveform

Question 20

What determines the quality of the x-ray beam?

Answer 20

The energy carried by the x-ray