問題一覧
1
Positive side of the x-ray tube.
Anode
2
A metal cup where the filament is embedded.
Focusing Cup
3
Releases electrons.
Filament
4
Side where the electrons are released.
Cathode
5
2 Parts of Cathode.
Filament and Focusing Cup
6
What are the 2 Internal Structures of X-ray Tube?
Cathode and Anode
7
Melting point/ temp. of the filament?
2200 Degrees Celcius
8
What is the current and voltage required for the x-ray to operate?
Direct Current (220V)
9
Device that converts AC to DC.
Rectifier
10
In-charged for increasing the current and intensity for the filament to be heated.
Filament Transformer
11
Provides high voltage to the x-ray tube. (220V)
High-Voltage Transformer
12
What are the 3 Primary Parts of High Voltage Generator?
High-Voltage Transformer, Filament Transformer, Rectifier
13
Consist of mechanical and electronic devices whose action is to “MAKE” and “BREAK” the high voltage across the x-ray tube.
Timer Circuit
14
Circuit where the x-ray is being controlled.
Filament Circuit
15
Process of which the heating of the filament.
Thermionic Emission
16
Intensity of the x-ray beam and the number of electrons crossing from cathode and anode.
mA
17
Penetrating ability of the x-ray beam.
kVp
18
It allows the voltage to be monitored before the exposure.
Pre-Reading Voltmeter
19
This supply a precise voltage.
Line Compensator
20
Represents two separate series of connection on the autotransformer.
Major and Minor kVp
21
Varies or controls the voltage to 100-200V.
Autotransformer
22
It refers to the penetrability of the x-ray beam.
Quality (kVp)
23
It is expressed in kilovolt peak or HVL (half value layer).
Quality
24
It refers to the number of x-rays or intensity of the X-ray beam.
Quantity (mAs)
25
It is expressed in the unit of mR (milliRoentgen/ Roentgen)
Quantity
26
3 PRINCIPAL PARTS OF X-RAY IMAGING SYSTEM?
Operating Console, High-Voltage Generator, X-ray Tube
27
It allows the radtech to control the x-ray tube current and voltage.
Operating Console/ Control Console
28
Also known as the low voltage section.
Operating Console
29
It is responsible for converting low voltage from electric power company into a kilo-voltage peak waveform.
High-Voltage Generator
30
Also known as high voltage section.
High-Voltage Generator
31
Creates x-ray photons from electric energy supplied by the x-ray generator.
X-ray Tube