Energy & Electricity: Flashcards
The binding energy of inner (K shell) electrons is greatest, resulting…
in higher energy photons when they are ejected during characteristic radiation production…
Characteristic radiation is a discrete…
(just under 70 keV)
All Ionizing radiation has a wavelength of…
less than 1 nanometer
Therapeutic radiation has the shortest
wavelength… shorter than X-rays and gamma rays
The smallest particle of electromagnetic radiation is the…
photon- in groups, they are called quanta
Sine waves have?
amplitude, frequency, wavelength and velocity-
Wavelength determines?
frequency: short wavelength = higher frequency (more cycles per
unit time)
Velocity for E-M radiation is always the speed of?
light
X-rays Travel in straight lines at…
the speed of light
X-rays Diverge into space from source until…
absorbed
X-rays Cause certain crystals to…
fluoresce
X-rays Have a photographic…
effect
X-rays Cannot be detected…
by human senses
X-rays have Differential penetration through matter is determined by?
mass or density of that matter
X-rays Cannot be refracted by a?
lens
X-rays Cannot be deflected by?
a magnet
X-rays Produce biological…
effect
electromotive force is?
The magnitude of difference in charge from one side of the tube to the other that causes electrons to flow and is measured in kilovolts
