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X-ray: Quiz

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Question 1: Any bones that are present absorb most of the X-ray photons by ________ processes.
Wave–particle dualityLightPhotoelectric effectElectron

Question 2: Originally, the electromagnetic radiation emitted by ________ had a longer wavelength than the radiation emitted by radioactive nuclei (gamma rays).
X-ray tubeVacuum tubeAluminiumCrookes tube

Question 3: In January 1896, on reading of Röntgen's discovery, Frank Austin of ________ tested all of the discharge tubes in the physics laboratory and found that only the Pulyui tube produced X-rays.
Harvard UniversityDartmouth Big GreenBrown UniversityDartmouth College

Question 4: ________ luggage scanners use X-rays for inspecting the interior of luggage for security threats before loading on aircraft.
Airport securityStar AllianceOneworldAirline hub

Question 5: This is in strong contrast to the application of X-rays in crystallography, ________, where their wave-like nature is more important.
ProteinProtein structureX-ray crystallographyAtom

Question 6: This used a ________ which permitted current to flow in a vacuum.
YttriumVacuum tubeZirconiumHot cathode

Question 7: Each of these thin film transistors (TFTs) is attached to a light-absorbing photodiode making up an individual ________ (picture element).
RGB color modelColor Graphics AdapterPixelDisplay resolution

Question 8: Currently amorphous selenium is used in commercial large area flat panel X-ray detectors for ________ and chest radiography.
MammographyMagnetic resonance imagingMedical ultrasonographyMedical radiography

Question 9: For this reason, X-rays first impinge upon ________ made from e.g.
OxygenScintillatorEuropiumXenon

Question 10: Medical X-rays are a significant source of manmade radiation exposure, accounting for 58% in the ________ in 1987, but since most radiation exposure is natural (82%), X-rays only account for 10% of total American radiation exposure.
CanadaUnited StatesPhilippinesAlaska







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