X-Ray Tube Quiz
1) The charge of the cathode side of the tube is ________.
2) The filaments which are located within the focusing cup are made of _______.
3) T or F: mA is applied to the anode to cause thermionic emission.
4) What are the 3 main reasons you use tungsten as the target material?
5) T or F: The larger the actual focal spot the larger the effective focal spot.
6) Because of the anode heel effect, radiation intensity is greatest on the ______ _______.
7) Is the anode heel effect more prominent at short or long SID’s?
8) T or F: The rotor is located within the envelope and is composed of electromagnets which turn the stator.
9) The envelope is made of ______ glass.
10) Leakage radiation from the protective housing must not exceed _____ mR/hr at 1 meter
Answers
1) Negative
2) Tungsten
3) F, It is applied to the cathode
4) High atomic number, High melting point, High thermal conductivity
5) True
6) Cathode side
7) Short
8) First part true, second part false, the stator has the magnets which turn the rotor
9) Pyrex
10) 100 mr/hr
