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RADT1300 Lecture 1
In-class lecture material about fundamentals of radiography.
Question | Answer |
---|---|
What is the definition of radiology? | Study of radiant energy. |
What is a radiograph? | Permanent record made using radiation. |
What is the general definition of radiography? | Process of making a permanent record using radiation (x-rays). |
What is a radiographer? | Person who makes a permanent record using radiation (x-rays). |
What is roentgenology? | Study of X-rays. |
Who discovered x-rays? | Wilhelm Conrad Roentgen. |
When was x-ray discovered? | November 8, 1895. |
How did Roentgen discover x-ray? | Experimenting with a cathode ray tube called Crookes tube (glass tube where applied current will produce electrons and cause flow across tube to the other side). |
What is the definition of x-rays? | An energy section in the electromagnetic spectrum (EMS). |
What is the electromagnetic spectrum? | A continuous band of measurable energies that are transported as a combination of electric and magnetic waves. |
How is the electromagnetic spectrum divided? | Based on the characteristics of the energy field. |
What are the characteristics of electromagnetic radiation? | Frequency- #/second (Hz) Wavelength- distance traveled (m) Velocity- "Speed of light" (m/s) |
How are the electromagnetic sections identified ? | Energy level, how the energy originated, and the way energy interacts with matter. |
How is EMS radiation measured? | Meters to angstrom |