Tcdha Rad Theory Final Correct 100%
First invented Xrays -ANSWER Wilhelm Conrad Roetgen 1895 Classifications of ionizing radiation -ANSWER electromagnetic, particulate electromagnetic radiation -ANSWER man made or occurs naturally, possesses no mass Particulate radiation -ANSWER tiny particles of matter that possess mass and travel in straight lines and at high speeds Tube head is immersed in -ANSWER oil, to provide electrical insulation and dispense of heat Cathode -ANSWER negative charge terminal made of tungsten anode -ANSWER postive charge terminal made of copper Cones -ANSWER 8 or 16 inches Collimator -ANSWER Lead disk to restrict the size of the beam High mA produces -ANSWER lighter image Low kVp produces -ANSWER High contrast transformers -ANSWER A device that increases or decreases the voltage of an electrical current Compton scattering -ANSWER 62 percent Roentgen does not have a _____________ -ANSWER SI equivalent Paralelling technique advantages -ANSWER accurate, simple, standardized paralelling technique disadvantages -ANSWER film placement, discomfort increased target receptor distance -ANSWER avoids magnification central ray is _____degrees to receptor -ANSWER 90 if the lack of parallelism is _______ the image is acceptable -ANSWER less than 20 central ray is _______degrees to tooth surface -ANSWER +10 Radiolucent -ANSWER ap
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