Fluoroscope

Question 1

used for examination of moving internal structures and fluids

Answer 1

Fluoroscope

Question 2

What type of exposure does fluoroscope use?

Answer 2

Dead-man type

Question 3

Two types of x-ray tube in fluoroscopy?

Answer 3

1. Fluoroscopic X-Ray Tube
2. Radiographic X-Ray Tube

Question 4

located under the bucky table, below the collimator

Answer 4

Fluoroscopic X-Ray Tube

Question 5

attached to an overhead movable crane

Answer 5

Radiographic X-Ray Tube

Question 6

Components of Fluoroscope (6)

Answer 6

1. X-Ray Generator
2. X-Ray Tube
3. Image Intensifier
4. Focusing Lenses
5. Video Camera
6. Charged coupled device (CCD)

Question 7

component of fluoroscope used for the selection of mA and kVp

Answer 7

X-Ray Generator

Question 8

converts electrical energy provided by the generator into x-ray beam

Answer 8

X-Ray Tube

Question 9

converts x-ray beam into visible light image

Answer 9

Image Intensifier

Question 10

Size of Image Intensifier

Answer 10

Approx. 20 cm long, PD = 25,000 V

Question 11

Component of Fluoroscopy that is used to converge image

Answer 11

Focusing Lens

Question 12

Component of Fluoroscope that records image

Answer 12

Video Camera

Question 13

Component of Fluoroscope that captures real time image and display

Answer 13

Charged-Couples Device (CCD)

Question 14

used to protect patient from falling off the bucky table

Answer 14

Bucky Slot Cover

Question 15

Size of Bucky Slot Cover

Answer 15

5 cm, opening at the end of BSC

made up with atleast 0.25mm of lead

Question 16

Elements of Image Intensifier Tube (6)

Answer 16

1. Input Phosphor
2. Photocathode
3. Electrostatic Focusing Lens
4. Accelerating Anode
5. Output Phosphor
6. Vidicon

Question 17

converts x-ray beam into light photons

Answer 17

Input Phosphor

Question 18

converts light photons into electrons

Answer 18

Photocathode

Question 19

maintains proper focus of the photoelectrons emitted from the photocathode to accelerating anode

Answer 19

Electrostatic Focusing Lenses

Question 20

located at the neck of the II tube, it is a circular metal piece with a hole at the center so electron can pass through the output phospho

Answer 20

Accelerating Anode

Question 21

Converts electrons to light image

Answer 21

Output Phosphor

Question 22

converts light image into real time display, connected to the output phosphor of the II tube

Answer 22

Vidicon

Question 23

the pattern from the large cathode end of the II TUBE must be reduced to small output phosphor

Answer 23

Minification

Question 24

process of electron emission that follows light stimulation

Answer 24

Photoemission