# RTA 2011 WK 5 FINAL Tube Exposure Factors Math Technique Contrast in addition to Density

## RTA 2011 WK 5 FINAL Tube Exposure Factors Math Technique Contrast in addition to Density

Kleiman, Mel, Contributing Editor has reference to this Academic Journal, PHwiki organized this Journal RTA 2011 WK 5 FINAL Tube Exposure Factors Math Technique Contrast in addition to Density X-ray Properties

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X-Ray Properties Are highly penetrating, invisible rays which are a as long as m of electromagnetic radiation. Are electrically neutral in addition to there as long as e not affected by either electric or magnetic fields X-Ray Properties Can be produced over a wide variety of energies in addition to wavelengths (polyenergetic & heterogeneous). Release very small amounts of heat upon passing through matter. X-Ray Properties Travel in straight lines. Travel at the speed of light in a vacuum. Can ionize matter.

X-Ray Properties Cause fluorescence of certain crystals. Cannot be focused by a lens. Affects photographic film. X-Ray Properties Produce chemical in addition to biological changes in matter through ionization in addition to excitation. Produce secondary in addition to scatter radiation. Artistic Talent

What is Technique Exposure factors under the control of the radiographer at the control panel mAs (mA x s) Milliamperage seconds kVp How does it affect our image The Control Console Where tech sets technical factors A. — B. — C. — Only a — individual is authorized to energize the console

Control panel AKA Control Console Producing optimal radiographs PRIME FACTORS mAs kVp Distance (SID)

DENSITY DENSITY THE AMOUNT OF –DARKNESS ON THE RADIOGRAPH Usually in response to— Described as a comparison of light going – in addition to light coming – DENSITY — on a radiograph or of a certain part of the image Results from: the -of radiation that reaches a particular area of the — Anatomic Density vs. Optical Density — Pathology or condition that — the atomic number of that body part Will appear as a — in optical density on the film Optical density The level of darkening we SEE on the film

Inversely Proportional Atomic number (z ) increases — Atomic number (z ) decreases — Variables that Affect Density Patient size Tissue composition mAs kVp Source image receptor distance (SID) Beam modification Image receptor Processing Variables that Affect Density Patient size Tissue composition mAs kVp Source image receptor distance (SID) Beam modification Image receptor Processing

— is the PRIMARY controlling factor of density — number of x-ray photons in the beam Also called: x-ray output Intensity mAs Milliamperage mA One milliampere is equal to one thous in addition to th of an ampere. The amount of current supplied to the x-ray tube Range 10 to 1200 mA

Time In seconds How long x-rays will be produced 0.001 to 6 seconds mAs mA X s = mAs mAs Reciprocity 100 mA x 1/4 = 25 mAs 200 mA x 1/8 = 25 mAs 400 mA x 1/16 = 25 mAs

Generator+ Trans as long as mers (where the power comes from)

## Kleiman, Mel Contributing Editor

Kleiman, Mel is from United States and they belong to Multi-Unit Franchisee and they are from  San Jose, United States got related to this Particular Journal. and Kleiman, Mel deal with the subjects like Building/Construction; Franchising

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This Particular Journal got reviewed and rated by Cambria-Rowe Business College-Johnstown and short form of this particular Institution is PA and gave this Journal an Excellent Rating.