17 Questions
What is unique about the Crookes' tube compared to other x-ray tubes?
It contains known volumes of various gases
What is the primary function of the tube housing?
To protect against electric shock and absorb leakage radiation
What is the source of electrons in the production of x-rays in the Coolidge tube?
The cathode
What is the purpose of the vacuum pump in the x-ray tube?
To permanently seal the glass envelope
What is the primary beam in an x-ray tube?
X-rays that pass through the thin window
What is the material used to make the glass envelope in the x-ray tube?
Pyrex
What is the main purpose of the x-ray tube?
To produce an x-ray beam
What material is often used for the x-ray tube's filament due to its high melting point?
Tungsten
What occurs when a current is applied to the filament in an x-ray tube?
Thermionic emission
What is the function of the focusing cup in an x-ray tube?
To focus the electron beam
What is the term for the cloud of electrons that forms around the filament in an x-ray tube?
Space charge
What is the advantage of having a vacuum in an x-ray tube?
It extends the life of the tube
What is the primary function of the anode in an X-ray tube?
To conduct high voltage from the cathode
Why is tungsten commonly used as the anode target material?
Because of its high atomic number and high melting point
What is the purpose of the target area in an X-ray tube?
To create X-ray photons
What determines the effective focal spot size?
The length of the filament and the anode target angle
What is the advantage of using tungsten-rhenium alloys as the anode target material?
They have a high atomic number and high melting point
Learn about the characteristics and components of Crookes and Coolidge tubes, including their housing, emission patterns, and radiation protection. Understand the differences between these two types of x-ray tubes.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
