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LRA 211 Final exam(123 questions and answers).
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LRA 211 Final exam(123 questions and answers).
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LRA 211Final
exam(123
questions
and
answers)
Leakage radiation must not exceed
Less than 100 mR/hr
,Size of target window
Usually 5cm squared
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The x-ray tube is situated in a
Protective housing
The protective housing is made up of
-Lead lined structure
-Oil bath (99% heat, 1% x-ray)
-Cooling fans
-Electrical insulation
, -Large cables
-Absorbs stray photons
What is the glass envelope made of
Borosilicate glass (pyrex) because it is heat
resistant
Anode
The anode is the positive end of the tube. It
provides the target for electron interaction to
produce x-rays and is an electrical and
thermal conductor. Designed to dissipate
heat
Tungsten
Has a high atomic number that can withstand
heat
Stator
The stator is made up of electromagnets
arranged in pairs around the rotor. The stator
is outside the tube enclosure.
Rotor
The rotor is made of an iron core surrounded
by coils and located in the center of the
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