TCDHA RAD Midterm 1 exam with correct answers

A form of energy carried by waves or streams of particles is defined as... Radiation The x-ray was discovered by... Wilhelm Roentgen Who MODIFIED the paralleling technique with the introduction of the long-cone technique? F. Gordon Fitzgerald Which of the following would you place in the patient's mouth in order to take dental x-rays? a) Image b) Image Receptor c) Radiograph d) Dental radiograph b. Image Receptor Which subatomic particle carries a negative electrical charge? a) A Neutron b) A Proton c) An Electron d) A Nucleon c. An Electron What is the binding energy or binding force of an electron is... Determined by the distance between the orbiting electrons and the nucleus A spontaneous emission of radiation from the disintegration of unstable atomic nuclei is... Radioactivity Cathode rays are derived from which of the following types of particulate radiation? a. Electrons b. Alpha Particles c. Protons d. alpha particle decay a. Electrons What type of radiation includes x-rays and visible light? Electromagnetic Approximately what percentage of the kinetic energy of the electrons is converted to x-rays at the anode? Less than 1% What restricts the size of the x-ray beam? The Lead Collimator Which form of the x-ray beam is more detrimental to the patient and operator? Scatter Radiation What happens with the electrons when the kilovoltage is increased? The electrons moves from the CATHODE to the ANODE with more speed Higher-energy x-ray beam with increased penetrating ability results by... When the kilovolt is increased