1. energy: ability to do work
2. kinetic energy: energy in motion
3. radiation: the transfer of energy from one location to another is called
4. 1895: when was energy form of radiation called x-rays discovered?
5. 1900s: radiation benefits and destructive nature has been known since
6. x-rays: a form of ionizing radiation is called
7. ions: the altered atoms or molecules compromising the charged particles are called
8. ionizing radiation: radiation that produces positively and negatively charged particles (ions) when passing through matter
is called
9. injury in normal biological tissue.: the production of ionizing radiation and electrons ejected in the process is an event
that may causes?
10. 1. creation of unstable atoms
2. production of free electrons
3. production of low-energy x-ray photons
4. creation of highly reactive free molecules (called free radicals) 5. capable of producing substances
poisonous to the cell
5. creation of new biologic molecules detrimental to the living vell
6. injury to the cell that may manifest itself as abnormal function or loss of function: what are the consequences of
ionization in human cells?
11. 1. x-rays are invisible
2. x-rays can have varying degree of penetration in normal tissue (skin surface to 5cm or greater) depending
on their energy.
3. x-rays are classified as electrically neutral because they are not deflected from their paths by either electric
or magnetic fields.
4. x-rays cannot be focused with a lens, although visible light may be.
5. x-rays travel in a straight line and at a speed on light (300million meter per sec) until they are interact with
atoms.
6. x-rays produced charged particles by interaction with atoms composed of matter, and cause an emission of
light known as fluorescence in certain crystals when passing through matter.
7. x-rays will darken photographic film, with the degree of darkening on portions of the film being associated
with the intensity (amount or quantity) of the x-rays striking those portions.
8. x-rays beams generally have within them a wide range of energies; that is, x-rays beams are normally
heterogeneous instead of monoenergetic.: what are the fundamental properties of x-rays?
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