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spring 2015 > Tube Construction Quiz > Flashcards

Flashcards in Tube Construction Quiz Deck (13)
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1

What's the input phosphor made of?

Cesium iodide 7

2

What is the input phosphor bonded to?

curved surface of the tube itself

3

What is the photocathode made of?

Cesium and antimony compounds

4

What does the photocathode bond to?

input phosphor with a very thin adhesive layer

5

What does the photocathode emit?

electrons

6

What is the electrostatic focusing lens?

Negatively charged plates along the length of the image intensifier tube

7

What is the electrostatic focusing lenses function?

It repels the electron stream focusing it on the small output phosphor

8

What is the accelerating anode function?

To set the electron stream in motion at a constant velocity

9

Where is the accelerating anode located?

The neck of the image intensifier near the output phosphor

10

What does the accelerating anode maintain?

Constant potential of approximately 25 kV

11

What does the accelerating anode do to electrons?

Sets the electron stream in motion

12

What is the output phosphor made of?

Silver-activated zinc cadmium sulfide

13

What does the output phosphor layer do?

Absorbs electrons and emits light in response