PROTON - The positive particle found in the nucleus
GROUP - A____ indicates the number of electrons in the outermost shell
ION - A____ is an atom that has gained or lost an electron
Creates radiologic image - Identify 1 important contribution from the process of
ionization
Natural Radiation - The greatest source of radiation expsoure on average to the US
population is
4 - particles are composed of the He nucleus
High/ Short - "Hard x-rays posses____ frequency &____ wavelengths
UV - Ionizing radiation is located above___ on the electromagnetic spectrum
Cosmic Gamma X-rays Ultraviolet Visible light Infrared radio - "Can Gramma really use
Val's initial R" represents the order of the EMR spectrum. The word really
represents........
X, Gamma - ___ rays originate by disturbing electrons and ____ rays originate from the
nucleus
Chemical, Biologic - X-rays can produce______and____ changes in the human body
Compton - The interaction that occurs when incident x-rays ionize atoms and change
direction with a loss of energy is called____ effect
Remant - The radiation that remains after attenuation to reach the image receptor is
called
Increase - As x-ray energy increases, we will have___ photons transmitted through
tissue .
Rad or Gray - The traditional unit of measurement for patient doses is
, Rem or Sievert - The metric unit of radiation measurement as an occupational dose
equivalent is called
Friction - The process of electrification by rubbing objects together is
Insulators - Materials that inhibit the flow of electrons in a conductor are called
Unlike charges attract; like charges repel - Identify 1 law of electrostatics:
Directly - The electrostatic force is____ proportional to the product of the charges
Volt - Electromotive force is another term for
Series - An example of a___ circuit is when 1 Christmas tree bulb goes out, they all go
out
Alternating - ______current involves the oscillation of electrons in opposite directions.
300 mA 120kV - General x-ray tube circuits utilize___mA and__kV.
Cathode - The___ is the negative terminal contained in the glass envelope of the x-ray
tube.
Follow recommended warm up procedure - Identify 1 method of prolonging x-ray tube
life.
Actual - The__ focal spot is the surface on the anode that encounters the electron
stream.
Increase - An increase in kVp will____ the penetrating ability of the x-ray beam.
Long - The primary function of filtration is to eliminate___ wavelengths from the x-ray
beam.
2.5 mm Al - Total filtration in diagnostic x-ray tubes is equivalent to___ mm Al.
100 mR/hr. at 1 m - The protective housing reduces leakage radiation to less
than___mR/hr. at 1m.
Ionization - AEC can be constructed with a photomultiplier tube or an____ chamber.
Radiographic Quality - Exactness of anatomic structures within a useful density range
describes_____.
Noise - Unwanted/ unnecessary optical densities on a radiographic image is called
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